Purification treatment system for black-colored and odorous rivers

Abstract

The invention relates to a purification treatment system for black-colored and odorous rivers. The purification treatment system comprises a sewage preliminary-purification device, a secondary-precipitation and biological treatment device, a thrice-precipitation and sterilization disinfection device, aeration and wastewater reutilization equipment and a final purifier. According to the purification treatment system, through the cooperation of all parts, the black-colored and odorous rivers are rapidly and effectively purified, and the purification 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 management. By 2030, black and odorous water bodies in urban built-up areas will be eliminated in general. [0003] Good hydrodynamic conditions are the prerequisite and guarantee for pollution discharge and self-purification of water bodies. Most of the coastal rivers in my country are loc...

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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