Purifying treatment system and purifying treatment method of black-odor rivers

Abstract

The invention relates to a purifying treatment system of black-odor rivers. The purifying treatment system comprises a sewage primary purifying apparatus, a secondary precipitation and biological treatment apparatus, a tertiary precipitation and sterilization and disinfection apparatus, an aeration and waste water reutilization device and a final purifying apparatus. By virtue of the cooperative work of different parts, the black-odor rivers can be rapidly and effectively purified, and the purifying effect is good.

Description

technical field [0001] The invention relates to the technical field of treatment of black and odorous rivers, in particular to a purification treatment system for black and odorous rivers. Background technique [0002] With the continuous and rapid development of my country's economy, many rivers have been seriously polluted and become "black and smelly rivers". According to relevant statistics, more than 80% of urban rivers in my country are polluted, many of which have seasonal or even perennial "black and odorous phenomena". In 2015, the "Water Pollution Prevention and Control Action Plan" (referred to as "Water Ten Measures") put forward clear goals for river and lake water quality control. By 2020, black and odorous water bodies in built-up areas of cities at the prefecture level and above will be controlled within 10%, and by 2030 In 2019, the black and odorous water bodies in urban built-up areas were generally eliminated. [0003] Good hydrodynamic conditions are t...

AI Technical Summary

Problems solved by technology

In addition, in order to prevent storm surge disasters and urban drainage, estuaries have built gate control systems, and the unreasonable opening and closing process has further aggravated the deterioration of river water quality.

The treatment of tidal black and odorous rivers, like ordinary black and odorous rivers, requires comprehensive engineering measures such as pollution interception and pollution control to control external sources, sediment dredging to control internal sources, introduction of ecological base flow, and ecological restoration. Disadvantages such as huge funds, water quality improvement and long ecological restoration period

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