Black-odor river sewage treatment method

Abstract

The invention discloses a black-odor river sewage treatment method which includes the steps: S1, arranging a drain grating at the upstream of a river and primarily intercepting sewage; S2, arranging a plurality of bio-filters in the river and adsorbing suspended matters in the sewage; S3, arranging a plurality of microporous aeration devices at the bottom of the river and taking out gas such as carbon dioxide and ammonia gas from water by laminar flow circulation; S4, placing compound microorganisms into the water to enhance water remediation capacity, improve water quality and decrease deposition of organic matters; S5, arranging artificial wetlands on two sides of the river and planting aquatic plants into the wetlands to improve purification effects; S6, arranging a carbon fiber aquatic plant matrix at the tail of the river to further adsorb suspended matters in tail water; S7, arranging a rubber dam at the downstream of the river, automatically regulating water level, enlarging the channel storage capacity of the river and prolonging sewage retention time. The method persists in integrated technology for restoring and treating a damaged aquatic ecosystem, and can be widely applied to the field of water environment treatment and ecological remediation.

Description

technical field [0001] The invention relates to the field of water environment treatment and ecological restoration, in particular to a treatment method for black and odorous river sewage. Background technique [0002] With the continuous improvement of my country's urbanization rate, the discharge of urban sewage has increased significantly, and the pollution load of urban surface water bodies has also increased. As a result, the quality of surface water is generally in the national surface water quality standard V and inferior to V. between. The river itself has shortcomings such as small water environment capacity and poor self-purification ability of the water body, which leads to an imbalance of oxygen supply and consumption in the water body, and the water body is in an anoxic or even anaerobic state. The anaerobic decomposition of the organic matter will cause black odor, which will cause a crisis in the entire ecosystem, seriously affect the ecological environment, a...

AI Technical Summary

Problems solved by technology

However, due to the large changes in the water quality and water quantity of urban rivers, the traditional biological-ecological method has problems such as slow effect and easy to be affected by seasons and climates.

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