In-situ treatment method for improving environmental quality of surface water

Abstract

The invention discloses an in-situ treatment method for improving the environmental quality of surface water, and the in-situ treatment method is used for treating riverway water and comprises the following steps: step 1, arranging an aeration system and a waterweed-like filler; 2, debugging and culturing a microbial system; step 3, continuing to operate the microbial system until the treated river water body reaches a V-type water body; 4, constructing a water ecological system; and step 5, continuing to operate the water ecological system until the treated river water body reaches the IV type water body. According to the method, the water body is purified by in-situ treatment, no land is occupied, and the energy consumption is equal to or lower than that of source-control sewage interception construction sewage treatment facilities; aeration is conducted on the bottom of the water body, sediment is consumed in situ, sediment improvement is facilitated, and desilting investment is greatly reduced or desilting is avoided; microbial flora is enriched through natural aeration, and the water quality treatment effect is good; a water ecological system is constructed, the self-purification capacity of the water body is brought into full play, and water body eutrophication is prevented; automatic operation is achieved, management is convenient, and unattended operation can be achieved.

Description

technical field [0001] The invention relates to the field of river basin management of water treatment, in particular to an in-situ treatment method for improving the environmental quality of surface water. Background technique [0002] Through a large number of investigations, it is found that a considerable number of water bodies in my country generally have black and odorous phenomena, and the surface water environment in villages and towns is extremely bad. According to the "2015 China Environmental Status Bulletin" promulgated by the Ministry of Environmental Protection of China, in 2015, 9.7% of the country's surface water was inferior to Class V water bodies; local surveys confirmed that nearly 2,000 urban black and odorous water bodies, especially urban inland rivers and lakes, Its pollution load is even more serious. Therefore, the management of the surface water environment in the basin is imminent, and it is also a major trend in the direction of environmental pr...

AI Technical Summary

Problems solved by technology

At present, as the national policy is tilted towards the black and odorous water body and the surface water environment of the basin, many units or consortiums have conducted in-depth research on the treatment of the surface water environment in the basin, but the governance ideas are basically "controlling source and intercepting sewage + water ecology" However, source control and interception involves multiple point source and non-point source pollution in the watershed, which is large in volume, wide in scope, expensive and energy consuming