Water Intake Treatment Plant Design - Drawings

Contents

Introduction

1. General part

1.1 Initial data

1.1.2 Administrative and geographical location of the work area

1.1.3 Climate

1.1.4 Hydrography

1.1.5 Geological data

1.2. Economic necessity and expediency of construction

2.General Plan

2.1 Brief description of the construction area

2.2 Master Plan and Improvement

3.Technological solutions

3.2. Process diagram of drinking water preparation

3.3 Mixers

3.3.1 Mixer calculation

3.4 Clarifiers

3.4.1 Calculation of clarifier

3.5 Quick filters

3.6 Reagent farm

4. Onsite networks

4.1. Water supply and sewerage

4.1.1 Process Networks

4.1.2 Measures for the organization of sanitary protection zones

4.2 States for maintenance of networks and facilities

5. Architectural and construction solutions

5.1 Brief description of architectural, planning and structural

decisions

5.2 Unit of clarifiers with filters and administrative housing

5.3 Reagent Facility Building

5.4 Clarifiers

5.5 Fire Safety Measures

5.6 Fire and technical classification

5.7 Ensuring fire safety

5.8 Waterproofing and corrosion protection

6. General technical solutions for automation of production technology

6.1 Process Automation

6.1.1 Unit of clarifiers with filters

6.1.2 Clean water tanks

6.1.3 Reagent facility building

6.2 Vent System Automation

7 Process Safety

7.1 Analysis of causes of injuries during installation works and measures to ensure their safety and harmful industrial factors

7.2 Construction Site Production and Security Lighting

7.3 Development of rational working and rest conditions for the treatment plant maintenance team

7.4 Safety of Road Construction Operation

machines and mechanisms

7.5 Safety of pressure vessels operation

7.6 Electrical safety at treatment facilities

7.7 Lightning protection of the administrative and domestic corps

7.8 Ensuring safety during welding operations

7.9 Fire-fighting measures at the construction site during welding and in the warehouse of flammable liquids

7.10 Environment Conservation Conditions

7.11 Forecasting and Response to Possible Emergencies

8. Technical and economic indicators

8.1 Marketing Study of Water Supply Project

8.2 Feasibility Study

9. Environmental expertise

9.1 General Data

9.2 Environmental assessment at the design stage of the facility

9.2.1 Brief description of physical, geographical and climatic conditions of the area and construction site

9.2.2. Protection of surface and groundwater

9.3. Restoration (reclamation) of land, protection of subsoil and wildlife

9.4. Organization of sanitary protection zone

9.3 Environmental expertise at the construction stage of the facility

9.3.1 Air pollution protection

9.3.1. Restoration (reclamation) of land, protection of subsoil and wildlife

9.3.4. Organization of sanitary protection zone

9.3.5 Production wastes generated during construction and installation works

9.3.6 Measures for protection of surface and groundwater during the period

constructions

9.3.7. Noise protection measures during construction

9.3.8 Measures for environmental protection during construction

9.4 Environmental examination at the stage of the facility operation

List of literature used

Introduction

One of the most important factors of national security in any country is the provision of drinking water to the population.

Drinking water is a necessary element of the life support of the population, because its quality, quantity and uninterrupted supply depend on the state of health of people, the level of their sanitary and epidemiological well-being, the degree of improvement of the housing stock and the urban environment, and the stability of the work of the communal and household sphere.

In the Russian Federation, the problem of providing the population with benign drinking water remains unresolved, and in a number of regions it becomes a crisis. The low level of sanitary and epidemiological well-being of the population is largely determined by the shortage and poor quality of drinking water.

Water intake facilities are provided for water treatment and supply. The source of water supply is the river. Ural.

On the basis of calculations, drawings were made, including the general plan of the water intake structure, plans, sections, technological diagrams of the designed structures .

The diploma project consists of an explanatory note, which includes 107 pages, 8 tables, 7 drawings, 26 literary sources and 8 large design sheets.

General part

1.1 Initial data

The project "Treatment facilities of the water supply system from the surface source (Ural River) with a design capacity of 100,000 m3/day" was developed on the basis of:

- "Orenburg Vodokanal Limited Liability Company Investment Program for the Development of Water Supply and Sanitation Systems of the Orenburg City Municipality";

- decisions of the administration of 17.10.2006 No. 124 on the approval of the "Investment program of the limited liability company Orenburg Vodokanal" on the development of water supply and sanitation systems of the municipality "Orenburg city";

- process diagram of the drinking water treatment station for the city of Orenburg, issued by RVK - Consulting No. 222 dated 15.07.2008 and No. 223 dated 15.07.2008;

- a description of the state of facilities of the South Ural Gage water intake from Orenburg Vodokanal LLC.

1.1.2 Administrative and geographical location of the work area

The city of Orenburg is located: 51 ° 47th north latitude, 55 ° 07th east longitude, near the border with Kazakhstan and is a link between Europe and Asia. The length of the border of the Orenburg region with the Republic of Kazakhstan is 1670 km. Orenburg is the administrative center of the Orenburg region, located in the South Ural region on the Sakmaro-Ural and Kindel-Sakmar watersheds. The territory of the city is 91.702 thousand hectares. The city of Orenburg is located at the junction of highways and railways, the main directions are Moscow, Tashkent, Saratov and Chelyabinsk. Absolute elevations of the surface of the territory range from 8285 m in the floodplains of the Urals and Sakmara to 190200 m at the peaks of local watersheds (Mount Mayak, Mount Sulak).

1.1.4 Hydrography

The site of the reconstructed South Ural water intake is located on the right bank of the river. Ural 5 km above the eastern outskirts of Orenburg.

R. Ural originates from four permanent keys on the elephants of the mountain range included in the system of hr. Uraltau, 18 km north of the village. Barangulovo (Bashkortostan). Above the area of water intake to be reconstructed

It flows through the Republic of Bashkortostan, Chelyabinsk and Orenburg regions. It flows into the Caspian Sea; the length from source to mouth is 2428 km. The water intake area is 231000 km2.

The closing sash in the area of ​ ​ the lower borders of the South Ural water intake is 1300 km from the mouth, limiting the upper (mainly mountain) and middle (flat) part of the water intake of the river. Ural with an area of ​ ​ 82,300 km2. In the lower part, the closed catchment borders on the basins of its own tributaries: from the south - with the Basin of the left tributary of the river. Ilek, from the north and west - p. Sakmary. In the upper reaches in the northern and northwestern parts - with basins of the right tributaries of the river. Tobol. The general extension of the basin is from sulfur to the south to the confluence of the river. Ore; below - abruptly changes to latitudinal - from east to west.

The valley of the Urals is trapezoidal in shape. The width of the valley in flat areas is 2.57 km, the largest - 10 km. In areas where the river cuts through mountain folds, narrows to 0.81.5 km. The largest narrows are up to 300 m below the mouth of the river. Mindyak, between the mouths of Tanalyk and Irikla - 400500 m, from the village. Khabarny to the mouth of Guberi 400 m. The slopes of the valley in the mountainous part are temperate, steep and steep, with a height of 90200 m. On flat areas in the upper part of the basin - gentle and moderect -crest 2550 m high.

On a subtracted segment, the right slope is high and steep, with a height of 70 m in the area of ​ ​ the mouth of the Ori to 140 m of the mouth of the Don; decreases to 1030 m at Orenburg; the left slope is mainly gentle with a height of 2025 m.

The valley complex almost throughout includes a floodplain and three floodplain terraces. Floodplain is absent on the section from s. Khabarny to the mouth of the river. Terekles; in the remaining areas, mostly bilateral. The average width in mountain areas is 0.20.4 km, in the lowland - 110 km. The relief of the floodplain is flat, in some places undulating, complicated by old depressions, old rivers. The floodplain is composed of sandy-rustic sediments covered by loam. The surface of the floodplain is meadow.

The shores are mainly steep, up to 8 m high, sandy clay with an admixture of pebbles; at the areas of the outcrops of the bedrock - pebble.

The channel of the Urals is unbranched, moderately winding in the mountainous part, winding on the plains. The width of the channel is from 1 m in the sources to 200 240 in the lower part. Depths on rifts - 0.30.8 m, on molds 1-8, maximum - 33.5 m. Flow rates on molds 0.30.5 m/s, on rifts - up to 1-2 m/s.

The bottom in the mould areas is sandy silt, on the rifts it is sandy pebble, in places (at the areas of the bedrock exit) it is pebbled - boulder.

Main hydrological characteristics.

Annual runoff.

The average long-term value of the annual flow of the river. The Ural in the alignment of the city of Orenburg was determined for the period 19581988. The average long-term water flow rate for the water management year is 81.7 m3/s; runoff modulus - 0.98 ls * km2, runoff layer 31 mm. The maximum annual water flow is 191 m3/s in 197576 g. The coefficient of variation of annual water flow for this period is 0.48.

1.1.5 Geological data

Quaternary alluvial deposits take part in the geological structure of the survey site to the explored depth. Alluvial deposits lie directly under the soil-plant layer and are represented by yellowtail loam, yellowtail-brown loam, as well as gravel-sand gravel-pebble deposits.

1.2. Economic necessity and expediency

constructions

The need to reconstruct a previously drafted project is caused by the following circumstances:

Improving the quality of drinking water and bringing water services to a level that meets human needs

Improving the ecological situation of the region.

Improving Reliability of Water Treatment Facilities

High wear and tear water intake equipment

Reduction of water recovery of GPU water intake with capacity of 40,000 m3/day.

The development perspective of the city of Orenburg.

Master Plan

2.1 Brief description of the construction area

The site of water treatment facilities is provided in the south-eastern part of the city on the territory adjacent to the existing hydraulic water intake. BOS is located on the right bank of the Ural River in the floodplain part with a calm terrain. Modern alluvial deposits of the quaternary system, underlain by soil clays, take part in the geological and olithological structure of the site.

The construction area belongs to the III climatic area, subarea "A" and is characterized by the following data:

- wind pressure 0.38 kPa (III district);

- snow cover weight 2.4 kPa (III district);

- design temperature of the coldest five-day period - 310С;

- ground freezing depth - 1.80 m.

Technological solutions

The site of water treatment facilities is provided in the south-eastern part of the city on the territory adjacent to the existing hydraulic water intake. BOS is located on the right bank of the Ural River in the floodplain part with a calm terrain. Modern alluvial deposits of the quaternary system, underlain by soil clays, take part in the geological and olithological structure of the site.

As one of the sources of water supply in Orenburg is the river. Ural. Water intake facilities are developed by a separate project.

3.2. Process diagram of drinking water preparation

According to the terms of reference, the design provides for water treatment facilities from a surface source (Ural River) for household and drinking purposes with a capacity of 100,000 m3/day;

The results of long-term observations of water quality in the Urals River on average are the following indicators: Turbidity 3 mg/l, chromaticity 12 degrees, total alkalinity - 3 mg/l. During the spring flood, there is a significant increase in turbidity to 280 mg/l, permanganate oxidization of 20.4 mg O2/l, total iron 15.2 mg/l. The concentration of nitrates and nitrites throughout the year is below MPC, ammonia 0.5 mg/l, as well as the presence of organic and anthropogenic contaminants.

Source water is supplied to drinking water treatment facilities via two 820 x 10 diameter water pipelines from the lifting pump station I to 4 mixers located in the reagent building, where the main reagents are efficiently mixed:

- aluminium oxychloride with a dose of up to 150 mg/l;

- sodium hypochlorite with a dose of 2.5 mg/l (primary chlorination).

When concentrations of permanganate oxidability, anthropogenic contaminants in the source water increase during flood periods, carburization with powdered active carbon with a dose of 20 mg/l is provided.

After mixing with reagents, water is supplied to the first purification stage - clarifiers with thin-layer modules, consisting of 15 sections (14 working, 1 standby). Clarifiers operate during flood periods, and in the rest of the year coagulated water is supplied via bypass line to fast filters. 12 fast filters are designed in one unit with clarifiers, without pressure with two-layer loading of quartz sand and zeolite.

After filtration, a second dose of 1.5 mg/l of sodium hypochlorite and ammonium nitrogen - 0.3 mg/l - is introduced into purified water and enters existing tanks of pure water with a total volume of 31200 m3.

The existing scheme for storing and supplying drinking water was adopted without changes in the characteristics of the state of the facilities of the South Ural Gage water intake of Orenburg Vodokanal LLC.

According to the technological scheme of water treatment and drinking water treatment for the city of Orenburg, it will allow to obtain a high-quality product corresponding to all normalized indicators SanPiN 2.1.4.107401 "Drinking water. Hygienic requirements for water quality of central drinking water supply systems. Quality control. "

3.3 Mixers

To ensure effective mixing of reagents with source water, 4 mechanical mixers are installed in the reagent building.

The mixer with a performance of 25 thousand m3/d has dimensions of 2074х2074х4147 mm. The mixer body is made of steel with an internal coating with epoxy resin or polymer.

The mixer is equipped with:

- ABS Scaba Top Entry Agitator Mechanical Propeller Stirrer;

- source water supply and discharge pipelines;

- Overflow;

- perforated coagulant distributor.

The volume of the mixer is 13.021 m3, the residence time in the mixer is 45 seconds.

Propeller stirrers create strong opposing streams, which ensures the best mixing of the reagent with the source water. Automated control with controlled speed of electric drive is provided, which significantly increases efficiency and efficiency of stirrers operation. Reagent is introduced into zone of maximum turbulence under stirrer from dosing pump through perforated distributor of coagulant installed under stirrer above mixer bottom.

Flocculant supply is provided from dosing pump to central part of pipeline, which discharges water from mixer pocket in opposite direction to water movement.

The following reagents are accepted:

- coagulant - aluminium oxide with maximum dose per commercial product 150 mg/l;

- ammonium flocculant Fennopol A100 or Superfloc A321 with an approximate dose of 0.1 mg/l.

Final dose and type of reagents shall be determined during commissioning of treatment facilities.

3.5 Quick filters

To clean water from suspended and colloidal substances, quick pressure-free filters with two-layer loading are provided. At a filtration rate in the normal mode of 8 m/h, forced to 10 m/h, the total filtration area will be 648 m2, or 12 filters of 54 m2.

The filter loading consists of quartz sand with grain size 0.71 mm 0.8 m high and zeolite 0.8 m high.

Water is supplied for filtration by reinforced concrete trays measuring 400x200x4800 mm above the load, filtered water collection is provided by the drainage distribution system "Polydef" Ø = 122 mm, L = 4750 mm, n = 29 pcs. NPF "Etek" for each filter .

The filter is flushed with intensity of 16 l/s per 1 m2 and flow rate is 864 l/s, during 5 minutes. The number of flushes is taken 2 times a day, the volume of flushing water is 6220 m3/day. Water supply to flushing is provided from flushing pump station. After cleaning on filters, water by gravity enters the existing clean water tanks.

3.6 Reagent farm

Reagent water treatment is provided for the process of drinking quality water treatment. Preparation of working solutions and their dosing is carried out in the building of the reagent farm with a size of 24x70 m.

3.7 Flocculant Preparation Shop

There are two installations (1working, 1-standby) SPF 2.0 for the preparation and supply of anionic flocculants FennopolA100 or SuperrflocA321 with a dose of 3.0 mg/l and a flow rate of 83 m3/day to the premises of the source water mixers, and with a dose of 0.1 mg/l, a flow rate of 3.06 m3/day to the mixed water mixer, 15 daily stock of flocculant in bags is in stock.

3.8 Washing Water Pump Station

The pump station is designed separately by type. pr. 9012162.88 consisting of a machine room, a room of repairmen, s/s.

Washing water, with an expense of 864 p/a, from the existing pure tanks, with a total amount of 31200 m3, moves the pumps D200021OUHL4 (2 workers, 1 reserve) of Q=1600 m3/h of h=11 of m on washing of filters.

Operation of pumps is automated from the signal about start of washing in the filter room. The equipment room also provides for pumps of farm drinking water for the own needs of treatment facilities. KM pumps 1250/200 (1 working, 1 standby) Q = 22 m3/h h = 40 m with speed control are accepted for installation.

Onsite networks

4.1. Water supply and sewerage

The initial water from the lifting pump station I is supplied via the discharge pipeline Ø 800 to the mixer, which is located in the reagent building. After the mixer on the samotechnonaporny Ø820x10 pipeline initial water comes to the block of clarifiers with filters from where purified water spontaneously on the pipeline comes to the pure tank.

4.1.1 Process Networks

The design adopted the following process systems:

clarified water supply - B8

the pipeline of removal of washing water after washing of filters - B10

the pipeline of a supply of washing water on washing of filters - B11

Clarified water from the flushing water structure again enters the head of the structures (it crashes into the underground water pipeline going to the iron removal station).

The flushing water pipeline after filters flushing is supplied to the flushing water structures. The filter flushing pipeline is provided from the lifting pump station II, where flushing pumps are installed, to the de-gelation station. To measure the flow rate of water supplied to the city, on the existing network of self-drinking, fire-fighting water supply (B1 system), an ultrasonic flowmeter "Akustron" is installed in the wells with output of readings to the operator pump station of the II lift.

Architectural and construction solutions

The site for the construction of treatment facilities is located on the right-bank floodplain of the river. Ural.

The construction area belongs to the III climatic area, subarea "A" and is characterized by the following data:

- wind pressure 0.38 kPa (III district);

- snow cover weight 2.4 kPa (III district);

- design temperature of the coldest five-day period 310С;

- quantity of degrees - day of heating period 5200;

- freezing depth - 1.80 m.

Since the construction site is located in the floodplain of the Urals River and is a potentially flooded territory (the maximum level of the Ural River is 92.59 m with 1% security), all buildings are designed on an artificial basis by a represented pillow of sand and gravel soils with the characteristics γ,, = 1.76 a,, = 360 s,, = 0.03 B = 32.

Before the device of the pillow, the vegetation layer with a total thickness of 1.1-1.3 m must be cut off. The elevation of the bottom of the artificial base is 8990.0 m.

The cushion shall be arranged in accordance with the work design. The recommended thickness of the sealing layer is 300 mm. Compaction factor 0.98.

5.1 Brief description of architectural, planning and structural solutions

Architectural and construction solutions were developed on the basis of the process diagram of the general plan, climatic characteristics of the district, engineering and geological data of the construction site.

Construction of the following buildings and structures is envisaged as the basis of the designed facilities of the water supply system treatment facilities from a surface source with a design capacity of 100,000 m3/day:

Unit of clarifiers with filters;

Administratively - household building;

Reagent farm building;

Clarifier;

Transformer substation

5.2 Unit of clarifiers with filters and administrative housing

The structure consists of three blocked units: filters, clarifiers and administrative-domestic.

Main construction indicators:

The built-up area is 4762.84 m2.

Including Clarifier Unit - 3484.52 m2

Filter unit - 1033.44 m2

Administrative - household building - 244.88 m2

The construction volume is 34599.43 m3.

Including Clarifiers Unit - 22300.93 m3

Filter unit - 10437.4 m3

Administrative and household building - 1861.1 m3

The total area is 4845.1 m2.

Including Clarifier Unit - 3410 m2

Filter unit - 1008 m2

Administrative and household building - 427.1 m2

The clarifier unit is a single-story rectangular building with a side size of 33.0 x 96.0 m. The height is 5.3 m to the bottom of the plates. External walls on axes 1 ÷ 36 and A from a red brick. The roof is rolled from the built-up material. Roofing insulation mineral slabs TECHNORUF of LLC TECHNONIKOL. Wall insulation extrusion plates "TECHNOPLEX." Walls and bottoms of sumps from prefabricated cast-in-situ reinforced concrete. Ribbed reinforced concrete slabs with a size of 1.5 x 6.0 m. Waterproofing of the walls of settling tanks and the bottom of penetrating action using Penetron. Foundations for walls are tape from prefabricated elements. The base is a pillow of sand and gravel mixture .

The filter unit is rectangular in plan building with dimensions of sides 120 x 84 m. The height to the bottom of building structures is 8.4 m. The building is equipped with a suspended crane-beam with a lifting capacity of 10 tons. The load-bearing elements are single-span frames made of reinforced concrete posts and beams with a span of 12.0 m. The posts are adopted with a section of 400 x 400 according to the series 1.42313/88. Grating beams according to the series 1.462.11/89. Covering plates ridge reinforced concrete in accordance with GOST 22701.0.77÷22701.577. Walls of Sandwich panels.

Walls and bottoms of filters made of cast-in-situ reinforced concrete. Concrete B20. A400 fittings. The foundations for the columns of the building are monolithic reinforced concrete glass on a natural base. The base of the building is a pillow of sand and gravel mixture. The roof is rolled from built-up materials. Waterproofing of walls and bottom of penetrating filters using Penetron.

The administrative building is two-story with a floor height of 4.2 m + 3.0 rectangular in plan with side sizes of 12.0 x 18.0 with longitudinal bearing walls made of brick. Precast reinforced concrete slabs and coverings according to the 1.141.1 series. Strip foundations of precast concrete and reinforced concrete elements. The roof is rolled from built-up materials. Partitions of gypsum board sheets along steel frame. Windows and doors according to the current GOST. Floors - ceramic slabs, concrete, linoleum.

On the 1st floor of the domestic building there are: a room of sand bins, a control room, an electric panel, a ventilation chamber, an office of the station manager, a food room, wardrobes, showers and latrines.

On the 2nd floor there are: a chemical and bacteriological laboratory with its auxiliary rooms.

5.3 Reagent Facility Building

One-story rectangular in plan shape building with dimensions of sides 24.0 x 60.0. Height to the bottom of the building structures is 7.20 m. In the axes 5? 7; V-D. Height to the bottom of the roof beams = 13.0 m.

Main construction indicators:

- Building area - 1504.4 m2;

- Total area - 1914.3 m2;

- Construction volume - 13774 m3.

In the axes 1? 5; And ÷ D are placed: shop of preparation of flocculant, shop of ammoniation of water, warehouse, workshop, mixer of washing waters. In axes 5 ÷ 7; And ÷ D is placed the shop of an uglevaniye, chlordozatorny and mixing offices. In axes 7 ÷ 11 the office of coagulant with the pump station is located.

Supporting elements are reinforced concrete columns with a section of 400 x 400 according to the series 1.423.1. Column grid 6 x 12.0. The roof beams are gable lattice with a length of 12.0 m in a series of 1.462.110. The pitch of the beams is 6.0 m. The columns are rigidly pinched in the sleeves of the foundations. Attachment of beams to columns is hinged. Covering from ridge reinforced concrete plates 3 x 6.0 in accordance with GOST 22701.0.77÷22701.577. Stability is provided by the coating design, bonds. The building is equipped with a suspension system. The walls of the building are made of Sandwich panels and partially of brick.

Foundations monolithic reinforced concrete glass type for columns. The brick base rests on reinforced concrete foundation beams of the 1.415.1 series. In the mixing compartment in axes 5? 7; To place vertical equipment, the bearing elements are solved in metal structures from rolling profiles.

Coagulant separation tanks are taken from cast-in-situ reinforced concrete.

Overlaps of anthresoles in axes 1? 3; B of ÷ D are executed from multihollow combined plates of series 1.141.1. The remaining floors of the entresoles, service platforms, transition bridges, stairs are solved in metal structures.

5.4 Clarifiers

Buried structure measuring 24 x 29 m. 5.40 m high. Walls of precast reinforced concrete elements of the 3.9003 series. Slab of 1.442 series ribbed reinforced concrete slabs. Bottom of cast-in-situ reinforced concrete. Waterproofing of walls and bottom of penetrating action using Penecrit and Penetron.

Key indicators:

- Building area - 750 m2

- Construction volume - 3873.4 m3

5.5 Fire Safety Measures

Structural and space-planning solutions are provided, providing in case of fire:

- possibility of evacuation of people;

- the possibility of saving people;

- possibility of fire departments access and supply of extinguishing means to the fire center.

5.6 Fire Fighting Classification

All designed buildings and structures belong to the II class of responsibility, II degree of fire resistance by structural fire hazard CO, by functional fire hazard F 5.1.

5.7 Ensuring fire safety

All buildings and structures belong to one functional fire hazard. Rooms with different fire hazard category are blocked by fire partitions of corresponding fire resistance and provided with evacuation exits.

In the buildings of 2 or more floors for the evacuation of people, internal staircases and external open stairs are provided. The width of the marches and sites are determined by calculation taking into account the degree of fire resistance of the building, functional fire hazard and the number of evacuees. Doors in fire partitions are provided with a rated fire resistance limit. All finishing materials on the escape routes are provided for NG groups (non-combustible). To increase the fire resistance of the mechanical dewatering building and the mixing compartment of the reagent farm, all bearing steel structures are covered with a 35 mm thick fire-retardant intumescent coating HVPF1.

5.8 Waterproofing and corrosion protection

The bottoms and walls of the capacitive structures are provided from W 6 concrete in terms of waterproofness. Waterproofing of walls and bottom of penetrating action using Penetron and Penekrit. Mortgage and connecting elements of reinforced concrete structures after their installation and also all steel products (racks, ladders, platforms, beams) to paint for 4 times GOST 935589 X710 enamel * on XC720 paint layer osl MRTU 61070867. Prior to installation, the m/structure shall be ground bare VL023 GOST 1270777 *. Horizontal waterproofing from 2 layers of built-up material with protection from profiled membrane "PLANTERstandard" is used in covers of buried structures. Anti-capillary waterproofing of walls is provided from cement mortar with thickness of 20 m of composition 1:2.

General technical solutions for automation of production technology

The following general automation solutions are provided:

all supplied measuring equipment and systems have certificates of approval of SI type of the Federal Agency for Technical Regulation and Metrological Support and are made in the metric system of units;

selection of electrical equipment, monitoring devices and cables was made depending on the category of production for explosive, explosion and fire hazard, the class of explosive and fire hazard zones of external installations, categories and group of explosive mixture;

all instrumentation and A equipment has permission for use at facilities controlled by Gosgortekhnadzor;

Instrument and A equipment is fully operational and has the necessary set of mounting parts;

cables with copper cores in non-combustible enclosure are used for control and monitoring circuits.

To implement these control and automation tasks, the project provides for the use of modern domestic control and automation tools:

- for pressure measurement - Metran100EhDI overpressure sensors manufactured by "Metran" SG, Chelyabinsk;

- for pressure signalling - electrical contact pressure gauges. DM2010Sg manufactured by ManoTom AOOT, Tomsk;

- for local pressure control - pressure gauges MP4U manufactured by ManoTom AOOT, Tomsk;

- for level control in fast filters - level control device

SAU-M7E with conductometric sensors of the production level of CJSC Aries in Moscow;

- for monitoring of levels in clean water tanks, reagent facilities - liquid level indicator SAUM6 with conductometric sensors of production level of CJSC "Aries" in Moscow;

6.1 Process Automation

The project envisages automation of the following technological facilities:

Clarifier unit with filters (GP4 position);

Clean water tanks (GP2);

Technology of production of treatment facilities of water supply system from surface source (Ural river) with design capacity of 100,000 m3/day. submitted on the vertical scheme of the movement of water on C63/0830C1013/8TX constructions sheet 2. Solutions for automation of process objects are presented on functional automation diagrams, and automation tools are presented in the equipment specification.

6.1.1 Unit of clarifiers with filters

The design provides for automatic switching on and off of gate valves with electric drive on pipelines of source and treated water, and on pipelines of flushing water.

1. In the operation mode of FO1 filters... FO12 during water treatment of gate valves on the flushing pipeline Zd13... Zd123 and the water drainage pipeline after washing of Zd14... Zd124 are in a closed state.

2. In operation mode of FO1 filters flushing... FO12 the gate valve on the flushing water supply line Zd13... Zd123 and on the water outlet after washing Zd14... Zd124. In this case, the gate valve on the source water pipeline Zd11 is closed... Zd121 and purified water pipeline Zd12... Zd122.

At start of operation in flushing mode at water elevation in the filter + 4.700 (maximum level) the pump N-1.1 (N-1.2, N-1.3) of flushing water located in the pump station is started. If the operating pump N-1.1 is not switched on or failed, the standby pump is switched on. Each filter is washed for 6 minutes 2 times a day.

Control of operation of gate valves and pumps in the mode of water treatment and filter washing is performed from the control room located in ABK. Alarm about water level in filters at water treatment mode (+ 4.300) and water level in filters at washing mode (+ 4.700) is performed by SAUM7E level monitoring device.

SAUM7E level control units (12 pieces) are placed in a case of the SS 2000h800h600 instrument.

This section of the project presents solutions for equipping process facilities with means of monitoring, automatic regulation and control in the scope that ensures their operation from the control room using APCS without the constant presence of maintenance personnel directly from process units and units.

To provide control, alarm and control functions, a SIEMENS controller is used, which is ordered on assignment to the ACS. All ordered equipment is located in RITTAL cabinets supplied with ACS equipment.

The control room contains:

Operator AWS - SCADA server for data collection and processing (delivery of ACS developer);

- ACS controller located in the cabinet (delivery of ACS developer);

- instrument cabinet with secondary instruments.

ACS facilities are provided with uninterrupted power supply using UPS; Power retention time is 30 minutes. UPS are built into cabinet equipment.

Operator's AWS and ACS controller are taken into account in a separate contract and are not included in the scope of this project.

6.1.2 Clean water tanks

To the control room of ABK pos. GP 11 shows the alarm about the maximum water level in existing RFVs. 98.35 (+ 4.85 from tank bottom). SAUM6 liquid level signaling devices (2 pieces) are placed in an instrument case.

6.1.3 Reagent facility building

Solutions for automation of operation of reagent farm pumps are presented on the functional diagram of automation.

Signals of management on inclusion - switching off of pumps of pumping of solution of coagulant Nk1.1, Nk1.2, Nk2.1, Nk2.2 and pumps - batchers Nd1, Nd2, Nd3 are formed by the SU control cabinet (ShchShM3 800h600h350 type). Control of levels in solution and account tanks and in tanks storages of coagulant is carried out by SAUM6 liquid level signaling devices (12 pieces) placed in a case of SS 2000h800h600 SU. The CU cabinet is located in the control room located in the household premises of the reagent farm.

1. Inclusion and switching off of the pumps Nk1.1, Nk1.2, Nk2.1, Nk2.2 for coagulant solution pumping from tanks storages in account tanks: inclusion at achievement of level in them 1.11 and shutdown at level 0.76m.

2. Actuation of dosing pumps Nd1... Nd3 at coagulant level in flow tanks + 0.55 and shutdown at 1.11 level.

3. Actuation of standby pump carriers, coagulant solution transfer pumps is performed in case of failure of working pumps.

6.2 Vent System Automation

Solutions for automation of plenum and exhaust ventilation systems are presented on functional automation diagrams: reagent building.

Ventilation systems of plenum ventilation are controlled by control systems of SSAU manufactured by the company "Veza," ordered together with plenum systems according to commercial proposal. The control system is designed to control the operation of the supply system with water heating. The system ensures maintenance of the specified temperature of supply air, regulating the flow of hot water through the calorifer with a ball valve with an electric drive, opening and closing it, as well as protection against freezing of water in the calorifer. The main input information is the signal from the supply air temperature sensor and the signal from the return water temperature sensor from the heater. The main control device is the controller of the SHSAU cabinet.

In case of fire detection in ABK, mechanical dehydration housing and reagent building, automatic fire alarm generates "fire" signal for disconnection of plenum and exhaust ventilation systems of the corresponding buildings.

Technical and economic indicators

8.1 Marketing Study of Water Supply Project

The site of water treatment facilities is provided in the south-eastern part of the city on the territory adjacent to the existing hydraulic water intake. The estimated amount of water consumed by the population and industrial enterprises is 100,000 m3/day.

The designed facility is designed to provide the city with drinking water quality. There is no need to chlorinate water. There is a reduced risk of pathogenic microbes, which can lead to a disease in the population.

Orenburg has a number of enterprises of local and regional significance (CJSC Orenburg Zavod ZHBI, LLC Ural Aluminum, OJSC Orenburg Energo Stroy Repair, OJSC Gidropress Plant Metalist) public objects for social, cultural and household purposes. The main water users are the population of the city of about 526.4 thousand people.

National economic efficiency is expressed using an indicator of the payback period. Payback period is 5 years, which ensures acceptable project efficiency. The social effect is to provide jobs for the local population.

The main source of financing for construction is the regional budget.

Other possible sources of investment attraction include local budget funds.

The presence of existing specialized construction and installation organizations is regulated by experience in the construction of similar facilities .

Materials: cement is to be supplied from Orenburg. Clay and sand will be delivered from local quarries. Reinforced concrete and metal pipes will be delivered from Orenburg (ZHBI plant).

Electric power source - power transmission line via transformer substation.

To select a contracting organization, it is advisable to use forms of attraction on a competitive basis. The main selection criterion is the minimum price for a contract. Another criterion can be a ballroom assessment, taking into account price, quality, reliability, resource security, the least risks.

Environmental expertise

9.1 General Data

The main document regulating the rules for conducting environmental expertise in Russia is the Federal Law "On Environmental Expertise," adopted in accordance with the presidential decree of November 23, 1995.

On the basis of the Law, all types of work related to the use of natural resources (minerals, water and land resources, air), as well as industrial and civil construction objects are subject to environmental examination.

The purpose of the environmental assessment is to assess the environmental consequences of making technical, technological and managerial decisions (implementation of the project), to develop, on the basis of expert analysis, socially and economically acceptable proposals aimed at reducing environmental damage and improving the environmental situation in the region.

The object of environmental expertise is the design documentation for the construction of the BOS in the city of Orenburg.

9.2.2. Protection of surface and groundwater

This surface water intake has I sanitary protection zone as per SNiP 2.04.02.84 *. Its purpose is to protect the place of water intake and water intake facilities from accidental or intentional contamination and damage. Maximum security sanitary protection zones are fenced in the region of 100 m from water treatment facilities. Within the sanitary protection zone of the first belt, a special regime is established and a set of measures is determined:

- all types of construction except expansion of water supply facilities are prohibited;

- Accommodation of residential and public buildings and residence of people is prohibited.

On the territory of the zone of sanitary protection of the I belt, all measures stipulated by the current standards in accordance with SanPiN 2.1.4.111002.9.3 must be performed. Restoration (reclamation) of land, protection of subsoil and wildlife

During the construction of buildings and utilities (water pipelines, sewage collectors), the cut vegetation layer of soil must be stored for further use in land reclamation. If it is impossible to store in the construction area, it should be transported to a temporary dump.

When storing soil, a fertile layer is laid on one side of the trench, the underlying layers of soil on the other. Trenches fall asleep in reverse order.

Backfilling of shrubs and tree trunks is not allowed when storing soil in temporary dumps.

Demolition of structures and cutting down of trees during work by the project is not provided.

In view of the lack of deposits and migration routes of animals on the site, the subsection "Protection of the subsoil and animal world" is not developed by this project.

9.4. Organization of sanitary protection zone

Since this object is not a source of air basin pollution on the basis of SaNPiN 2.2.1/2.1.1.103101 "Sanitary and epidemiological rules and standards," the organization of the sanitary protection zone is not provided.

Environmental expertise at the construction stage of the facility

9.3.1. Restoration (reclamation) of land, protection of subsoil and wildlife.

During the construction of buildings and utilities (water pipelines, sewage collectors), the cut vegetation layer of soil must be stored for further use in land reclamation. If it is impossible to store in the construction area, it should be transported to a temporary dump.

When storing soil, a fertile layer is laid on one side of the trench, the underlying layers of soil on the other. Trenches fall asleep in reverse order.

Backfilling of shrubs and tree trunks is not allowed when storing soil in temporary dumps.

Demolition of structures and cutting down of trees during work by the project is not provided.

In view of the lack of deposits and migration routes of animals on the site, the subsection "Protection of the subsoil and animal world" is not developed by this project.

9.3.4. Organization of sanitary protection zone

Since this object is not a source of air basin pollution on the basis of SaNPiN 2.2.1/2.1.1.103101 "Sanitary and epidemiological rules and standards," the organization of the sanitary protection zone is not provided.

9.3.6 Measures for protection of surface and groundwater during construction

For the reconstruction period, water supply is provided from the existing water supply. Workers on the construction site use existing bathrooms.

9.3.7. Noise protection measures during construction

During the reconstruction period, the following measures are envisaged to reduce noise:

- carry out construction work only in the daytime;

- prevent faulty construction machines and mechanisms;

- use power tools as much as possible.

9.3.8 Measures for environmental protection during construction

The following measures are recommended for reconstruction to reduce air and environmental pollution:

1. Compliance with technology and quality assurance of works performed.

2. Filling of all construction mechanisms with fuel and lubricants shall be performed only centrally. Dumping of oil-containing wastes or their storage on site is strictly prohibited. Waste should be taken daily to the fuel and lubricants base.

3. Spent oil products from construction machines and mechanisms are handed over to the nearest transshipment oil depot.

4. The rags formed during the operation of the mechanisms are collected in special boxes and exported to the base of the construction organization.

5. Fencing of the construction site with a fence.

The project provides for the application of advanced methods of reconstruction, which reduces pollution of the atmosphere and territory during construction and installation work.

Environmental expertise at the facility operation stage

During commissioning and operation of new BOS process facilities, the following types of waste are generated:

used fluorescent lamps;

rinse oiled;

solid household waste;

budget from the territory;

production waste.

Used fluorescent and incandescent lamps.

The fulfilled fluorescent lamps are stored in the storeroom on racks in packings of a zavodaizgotovitel from where 1 to take out on the specialized enterprise for recycling of this look quarterly.

Rush oiled.

The oil rinse is formed during the installation of process equipment, commissioning and repair and restoration work. Rags are collected together with household waste in a metal container installed on a specially allocated open area. Therefore, in compliance with the rules for waste management, oiled rags will practically not have a harmful effect on groundwater, surface water and soil.

Solid household waste.

Personnel are formed as a result of activities, as well as during cleaning of premises. Composition of solid household waste: paper and wood - 60.0%; rag - 7.0%; food waste 10%; glass blade - 6.0%; metals - 5.0%; plastics - 12.0%. The waste is collected in a 0.75 m3 metal container installed in a dedicated open area. Solid household waste is removed once a day in summer and once every 3 days in winter by a special transport of municipal services of the city to landfills.

Smet from the territory.

The budget from the territory is formed during the planned cleaning of improved solid coatings of the industrial site of enterprises. The generation of this type of waste occurs daily.

Waste of this type is collected together with household waste in a metal container installed on a specially allocated open area.

Waste such as wet waste, household waste, smet from the territory are stored in a standard metal container with a lid, which protects the waste from atmospheric moisture and prevents the spread of waste in windy weather throughout the territory, which meets environmental standards.

Production waste.

Production waste is generated during the production activity of the object in question. The composition of the production waste will include: sediment formed during the treatment of washing water.

At the location on the territory of the enterprise, all waste can be divided into two groups:

- Wastes, temporary storage places of which are planned to be placed in the room.

- Wastes, temporary storage places of which are planned to be placed on open sites.

The first group of waste will include: a sediment of washing water, washed oil, spent fluorescent lamps.

The second group of waste will include: estimates from the territory, household waste.

Sites for selective and joint waste collection and storage will be organized on the territory of the enterprise. For this purpose containers and containers for temporary storage of waste will be installed.

The periodicity of the removal of such wastes as wet rags, household waste, estimates from the territory is determined by sanitary and hygienic requirements -1 time a day in summer and 1 time every 3 days in winter.

Waste of hazard class 1 - fluorescent lamps will not have a harmful effect on the environment, as they will be stored in the factory package, not broken, in a metal, hermetically sealed box.

Subject to storage conditions and periodicity of waste removal, the negative impact on the soil will not be significant.

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