Calculate and design natural water treatment facilities - exchange rate

Contents

Introduction

1 Calculation of treatment facilities

1.1 Full capacity of treatment facilities

1.2 Reagent farm

1.3 Dosing of reagents into treated water

1.4 Selection of water treatment methods and composition of main technological facilities

1.5 Mechanical mixer

1.6 Clarifiers with suspended sediment layer

1.7 Quick Filters

1.8 Reuse of flushing water

1.9 Sand farm

1.10 Water disinfection

2 Sanitary protection areas

Conclusion

List of used literature

Introduction

The purpose of this course project: to calculate and design natural water treatment facilities with a plant capacity of 27,000 m3/day, turbidity of river water of 80 mg/l, color of 25 degrees, alkalinity of 3.1 mg * eq/l, with an odor and taste of 2 points.

Sanitary protection areas

According to [1, p. 10.8], the boundaries of the first zone of the sanitary protection zone are established at distances from the water intake:

- upstream - not less than 200 m;

- downstream - not less than 100 m;

- on the bank adjacent to the water intake - not less than 100 m from the water cut at summer autumn low water;

- in the direction to the opposite bank: with the width of the watercourse less than 100 m - the entire water area and the opposite bank 50 m wide from the water cut at summer autumn low water, and with the width of the watercourse more than 100 m - a strip of water area at least 100 m wide.

The boundaries of the second belt according to [1, p. 10.9] are set:

upstream, including tributaries, based on the flow rate of the water, averaged along the width and length of the watercourse or on its individual sections and the time of water flow from the belt boundary to the water intake at an average monthly flow rate of summer autumn water of 95% of the supply of at least 5 days for IA, B, In, and IIA of climatic areas and not less than 3 days for other climatic areas;

- downstream - not less than 250 m;

- lateral borders - at a distance from the water edge at summer autumn low - at flat relief - 500 m, at mountainous relief - to the top of the first slope facing the watercourse, but not more than 750 m with a gentle slope and 1000 m with a steep slope.

According to [1, item 10.11], the boundaries of the third belt shall be the same upstream and downstream of the watercourse as for the second belt; lateral borders - along the watershed, but not more than 3-5 km from the watercourse.

On the territory of each zone, appropriate sanitary measures are provided, determined [1, para. 10.2110.30].

Conclusion

During the course project, I completed the following:

• The composition of the water treatment plant facilities was selected: clarifiers with a layer of suspended sediment - fast filters;

• designed reagent facilities, all water treatment facilities, water decontamination system with liquid chlorine, facilities for repeated use of flushing water.

• Health protection areas are defined.

The following were also designed: water supply treatment facilities, a master plan of treatment facilities, a high-altitude scheme of water supply treatment facilities.

Гохман-Бобровская 2.dwg

Чертеж Гохма-Бобровская.dwg