Method for in situ microbial remediation of urban water body

Abstract

The invention relates to a method for in situ microbial remediation of urban water body. Specifically, the method comprises the following steps: taking powdered activated carbon, clay mineral, solid carbon source and microorganism growth factor as raw materials for preparing a microorganism enrichment activating filler; keeping full contact between urban polluted water body and microorganism enrichment activating filler under the action of aeration; boosting the fast enrichment, activation and multiplication of microorganisms in fed water by the carbon source and microorganism growth factor released from the filler; guiding the efficient active fungi released from the filler to enter into the urban water body following the effluent, thereby effectively regulating the structure and plumpness of biological colony in water body, enhancing metabolism of microorganisms, accelerating mineralization of organic pollutants and finally achieving the purpose of remediating water body and promoting self-cleaning capacity of ecological system. The method is simple in process, is low in production and running cost, is convenient for engineering application and has an excellent popularization andapplication prospect.

Description

technical field [0001] The invention relates to a method for in-situ microbial restoration of urban water bodies, and belongs to the technical field of water treatment. Background technique [0002] Urban water bodies refer to water bodies located within the city and closely related to urban functions, including river sections, river ditches, lakes and other landscape water bodies that flow through the city, and are an important part of the urban ecosystem. In recent years, with the rapid development of my country's urban economy and the expansion of urban scale, the urban environmental infrastructure is increasingly unable to meet the increasing demand for urban sewage discharge, resulting in a large number of pollutants entering the river water body, and the chemical oxygen demand (COD) in the water body ), nitrogen (N), phosphorus (P) and other pollutant concentrations exceed the standard, river water pollution is serious, and there are seasonal or year-round black and odo...

AI Technical Summary

Problems solved by technology

However, the technology of adding microbial agents cannot control the loss of microorganisms, and has unpredictable ecological risks

Aeration and placement of various fillers can activate and increase the microorganisms in the water body, but due to the limited nutrients in the urban water body, the density of the microorganisms is limited, and the microorganisms in the natural water body generally have low work efficiency, resulting in slow removal of black and odor in the water body , not obvious

In addition, technical devices such as aeration and biofilm purification generally have difficulties in installation and management, affecting river landscapes, flood control, and shipping.

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