Black and odorous water body treatment method based on physicochemical-microecological combined measures

Abstract

The invention discloses a black and odorous water body treatment method based on physicochemical micro-ecological combination measures, which comprises the following steps: direct discharge pollutioncontrol: treating wastewater discharged into a river by using clarification equipment and a metal film activated carbon filtering device to reduce the pollution load of the sewage entering the river;substrate improvement: firstly, adding an immobilized microorganism bottom mud repairing agent to degrade pollutants and repair polluted bottom mud in situ, and then adding an ecological substrate improver to passivate the bottom mud and reduce nitrogen and phosphorus pollution in a water body; and in-situ purification: using in-situ purification measures to construct a diversified habitat suitable for the growth of microorganisms in a water body, so as to promote the construction of a micro-ecological system and strengthen the decomposition effect of the microorganisms on pollutants. According to the black and odorous water body treatment method, physicochemical measures and micro-ecological measures are applied according to local conditions, flexible combination and dynamic treatment areachieved, black and odorous water body pollution can be rapidly coped with, water quality is improved, and a foundation is laid for follow-up water environment improvement and water ecological restoration.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to a method for treating black and odorous water bodies with combined measures of physical chemistry and microecology. Background technique [0002] Black and odorous water body is a biochemical phenomenon, which is an extreme manifestation of the water environment suffering from organic pollution that exceeds its self-purification capacity. When the water body is severely polluted by organic matter, the aerobic decomposition of organic matter will cause the oxygen consumption rate in the water body to exceed the rate of reoxygenation, resulting in anoxic water body, resulting in incomplete degradation of organic matter and slowed down rate, and the anaerobic biodegradation process will generate hydrogen sulfide, ammonia, sulfur At the same time, black matter is formed, which causes black and odorous water body, ecological imbalance of water body, complete loss of us...

AI Technical Summary

Problems solved by technology

[0005] At the same time, in terms of internal pollution control, traditional mechanical dredging measures mainly use mechanical methods to remove river silt from the river, but this method is more practical for river silt with relatively hard mud, and for the most dense pollutants, The floating mud layer located at the uppermost part of the mud layer is basically ineffective, and the sludge is improperly handled and dumped randomly, which can easily cause secondary pollution

[0006] In terms of in-situ treatment, due to the complex pollution components of black and odorous water bodies, in-situ treatment alone does not control the input of external pollution and the release of internal pollution. The pollutants received in the water still exceed the water environment capacity of the area, and will Good results cannot be achieved; therefore, in-situ treatment often needs to be implemented jointly with engineering measures such as blocking external source pollution and controlling internal source pollution to achieve the purpose of reducing pollutant load, eliminating black odor, improving water quality, and restoring the self-purification function of water bodies. It is difficult to achieve the effectiveness and long-term effect of black and odorous water treatment by a single in-situ treatment technology