Intensification of low-turbidity colored water treatment in a sludge blanket clarifier (part 1)

Summary

The specific features of high colored low turbidity water treatment in clarifiers with sludge blanket during representative time periods with low temperatures and water alkalinity are considered by the example of the Vologda water treatment facilities. The results of investigating chemical pretreatment of water from the Vologa River and Koubenskoye Lake during flood periods with the use of various oxychloride and aluminium sulfate trademarks as well as cationic and anionic flocculants are presented. The advanced methods of enforcing water treatment process in a sludge blanket are covered. The results of studying a «clarifier-filter with floating media» combined system are presented.

Key words

coagulant , flocculant , low turbidity colored water , sludge blanket clarifier , recirculator , filter with floating media

Intensification of low-turbidity color water treatment in a sludge blanket clarifier (part 2)

Summary

The specific features of high color low turbidity water treatment in clarifiers with a sludge blanket during representative time periods with low temperatures and water alkalinity are considered by the example of the Vologda water treatment facilities. The advanced methods of water treatment process enhancement in a sludge blanket are covered. The results of studying a «clarifier-filter with floating media» combined system are presented. The implementation of the proposed measures at the existing water treatment facilities of the Northwest regions, Siberia and Far East will provide for the efficient operation of the clarifiers.

Key words

coagulant , flocculant , water quality , sludge blanket clarifier , filter with floating media , test bench