Modular bioecological unit for in-situ river regulation and sewage treatment

Abstract

The invention discloses a modular bioecological unit for in-situ river regulation and sewage treatment. The modular bioecological unit comprises a modular biological unit and a modular ecological unitconnected together; the modular biological unit is arranged above the modular ecological unit when they are arranged in a river channel. The modular biological unit comprises a packing frame and a slow-release carbon-source packing unit packed in the packing frame, and the slow-release carbon-source packing unit comprises a carbon-source supporter and a slow-release carbon source packaged in thecarbon-source supporter. The modular ecological unit comprises floaters, water plants arranged on the floaters and buoys limiting moving of the floaters. The modular bioecological unit can enrich microorganisms effectively, provide a stable carbon source for eutrophication of water of rivers and lakes and microbial denitrogenation of sewage lack of carbon sources and the like, and realize quick construction of a biomembrane system.

Description

technical field [0001] The invention relates to a microbial denitrification slow-release carbon source module in the field of water body treatment and sewage treatment, in particular to a modular biological ecological unit for in-situ treatment of river channels and sewage treatment. Background technique [0002] At present, water pollution has become the most important water environment problem facing our country. With the development of comprehensive river remediation, most of the pollution sources in the Xiahe River have been cut off, and the water pollutants have changed from organic pollution to nitrogen and phosphorus pollution. In addition, with the acceleration of urban sewage treatment and reuse of reclaimed water, reclaimed water has become an important part of urban river and lake water bodies. The COD of these water bodies is not high, but the content of ammonia nitrogen is high. The degree of eutrophication of the lake. [0003] At present, due to the closure a...

AI Technical Summary

Problems solved by technology

Small molecular carbon sources have the advantages of being easily degraded by microorganisms and easily utilized by denitrifying bacteria. However, due to the characteristics of the fluidity, water volume, and water quality of river water bodies, it is difficult to control, and small molecular organic carbon sources are put into river water bodies. Effective use will not only fail to achieve the purpose of promoting denitrification, but will pollute downstream water bodies, and the cost is high

Natural cellulose-based carbon sources (such as cotton, straw, rice husk, etc.) have the advantages of convenient materials, sufficient sources, and low cost. If the remaining straw residues are not removed from the water body, they will be deposited at the bottom of the river to rot, which will further aggravate the black and odorous situation of the water body.

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