River sewage treatment process

Abstract

The invention discloses a river sewage treatment process. A water ecosystem for river water is constructed with the adoption of a biological-ecological river water quality integrated purification mode and in combination with sewage interception pretreatment and artificial water aeration technologies and beneficial strain microorganism and aquatic submerged plant remediation technologies, metabolism of the whole water in a river can be promoted, the self-cleaning capacity is improved, pollutants are turned into harmless matters without changing the outside structure of the river, and besides, the river sewage treatment process is low in construction cost, short in cycle and suitable for popularization.

Description

technical field [0001] The invention relates to a sewage treatment process, in particular to a river sewage treatment process. Background technique [0002] Rivers, especially those in central urban areas, usually have small river basins and poor self-purification capacity. A large amount of domestic sewage and coastal catering wastewater are directly discharged into the river. The characteristics are high nitrogen and phosphorus content, mainly organic pollutants, and pollutants The contents of other heavy metal pollutants and toxic agents are relatively small. When the temperature is high, endogenous pollutants release a large amount of nitrogen and phosphorus, resulting in eutrophication of water bodies. When a large amount of organic matter in the sediment is decomposed by aerobic microorganisms, the dissolved oxygen in the water is exhausted at a relatively fast speed, and anaerobic and facultative microorganisms in the water decompose organic matter to produce a large...

AI Technical Summary

Problems solved by technology

[0006] 3. Bottom mud dredging. Bottom mud is the main source of water pollution. Dredging technology is usually the key to determining the dredging effect. From the earliest manual dredging to the current precise underwater suction, the impact of the dredging process on the environment is changing. Dredging has an important effect as a water conservancy project and waterway engineering measure, but there are still some insurmountable problems as water quality control, such as the increase in the concentration of pollutants in the overlying water to a certain extent, and the large amount of silt after dredging , complex pollutant components, high water content and difficult to deal with, etc.

[0009] The first step of the above-mentioned technical solution is to cut off the pollution source o

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