Method for preparing microbe bacteria liquid for treating black-odor riverway

Abstract

The invention relates to a method for preparing microbe bacteria liquid for treating black-odor riverway. The method comprises the following steps: collecting mud at bottom of the riverway, performing microflora diversity analysis on the mud through a high-flux sequencing experiment, performing primary screening, taking mud at the bottom of the riverway, inoculating the mud into a aseptic nitrogen-removal bacterium enrichment nutrient solution, inoculating the mud into fresh enrichment nutrient solution, detecting the ammonia nitrogen and nitrate nitrogen content in the medium, taking mixing bacteria liquid with less accumulation of nitrogen as the primarily screened flora having nitrogen removal effect; optimizing enrichment screening, inoculating the fresh optimized enrichment medium into the primarily screened nitrogen-removal bacteria liquid, adding a trace element solution in the mixing bacteria liquid, inoculating the mixing bacteria liquid added with the trace element into the liquid medium which takes calcium carbonate and sodium citrate as carbon sources, uniformly preparing an uniform breeding diluents by the mixing bacteria liquid, inoculating the material to beef extract peptone nutrient agar, uniformly distributing the materials in a flat, and culturing the material.

Description

technical field [0001] The invention relates to a microbial preparation, in particular to a microbial preparation for river water quality restoration and a preparation method thereof. Background technique [0002] In recent years, with the increasing development and utilization of environmental resources in cities, a large number of pollutants containing nitrogen and phosphorus nutrients have been continuously discharged into rivers in cities, making river eutrophication increasingly serious, and some river sections even turn black and smelly , seriously affecting the life and health of the surrounding residents. [0003] The deterioration of river water quality is mainly due to the discharge of treated water from urban sewage treatment plants. Although through upgrading and upgrading, the drainage of the sewage plant can meet the national first-class A standard, but after the treated water enters the river, it is difficult to reach the surface water Class IV standard from ...

AI Technical Summary

Problems solved by technology

Coupled with the aging of urban drainage facilities, the feasibility of full coverage of the rain and sewage diversion pipe network is low, and the phenomenon of illegal and disorderly drainage occurs from time to time, causing some sewage to be directly discharged into rivers

In addition, the reduction of the water area in the urban area, the hardening of the river revetment, and the impact of the construction of flood control gates on the flow of the river have all resulted in a significant reduction in the self-purification capacity of the water body