Black and odorous water/eutrophicated water treatment method and device, and application thereof

Abstract

The invention provides a black and odorous water / eutrophicated water treatment method and device, and application thereof. The method mainly comprises the following steps: (1) treating river course sediment; (2) treating by a bypass high-efficiency bioreactor; (3) oxygenating the river course; and (4) adding a microbial inoculant and a stimulant. The external sources are controlled: the upstream uncontrollable pollution source or severe black and odorous / eutrophicated water is pretreated by a bypass high-efficiency bioreactor, and the microbial-ecological restoration measures are taken to effectively control the black and odorous / eutrophicated water pollution sources. The black and odorous / eutrophicated water sediment is digested to reduce the endogenous pollution. The bypass high-efficiency bioreactor technique and the oxygenation technique are combined, so that the quality of the black and odorous / eutrophicated water is maintained; and the self-purification capacity of the water is enhanced, thereby providing a feasible restoration method for treating the black and odorous / eutrophicated water.

Description

technical field [0001] The invention belongs to the technical field of environmental protection. The invention relates to physical, chemical and biological restoration technologies in the fields of black and odorous and eutrophic water bodies and wetland restoration, and a comprehensive treatment method, device and application of black and odorous water bodies integrating multiple treatment technologies. Background technique [0002] With the rapid development of society and economy, the population has grown rapidly, the discharge of pollutants has increased significantly, environmental protection has lagged behind, and the level of governance has not kept up with the high economic development, resulting in a large number of pollutants entering the water body with sewage, garbage, precipitation and runoff, resulting in The quality of the environment has deteriorated. Runoff pollutants are directly discharged into rivers without treatment, causing serious pollution to water b...

AI Technical Summary

Problems solved by technology

Especially in cities, in order to meet the needs of flood discharge, river reconstruction is only considered from an engineering point of view, the river is cut and straightened, and the two sides of the river are solidified with cement and steel bars on three sides. The living environment of organisms disappears, and their ecological functions and net capacity also degrade, which directly leads to the disappearance of a large number of organisms in the river, and the high-load pollution discharge easily causes the ecological system inside the river to collapse. Black and smelly, it has become a typical stinky ditch, with severe siltation and basically lost its flood drainage function

There is currently no ideal treatment method for this kind of problem. Most of the methods involve dredging treatment, the investment cost is relatively high, and the practical problem cannot be solved fundamentally. As of February 16, 2016, in 295 prefecture-level and above cities across the country Among them, no black and odorous water bodies were found in 77 cities

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