Prepn of microbial colony sludge for efficient treatment of sewage

Abstract

This invention relates to a preparation method for microbial colony used for effectively treating urban living sewage and sewage sludge in river bend, lake, marsh enclosed or semi-enclosed water areas. The said method includes the following steps: collecting and culturing of engineering initial bacterial strain, enrich mixed culture of bacterial strain, acclimatized culture of engineering bacteria and expanding culture of acelimatized bacteria. It this invention found is from the microbial growth and metabolic mechanism a preparation method of microbial colony which can high-effectively and high-adaptively treat various sewage sludges.

Description

(1) Technical field [0001] The invention relates to a method for preparing microbial flora for efficient treatment of sewage sludge, namely, a method for treating urban domestic sewage and in enclosed or semi-enclosed waters such as river bends, lakes, ponds, swamps, etc. where the water flow is stagnant or the water flow is very slow. Sewage sludge method. (2) Technical background [0002] The water environment is the most important part of the earth's ecological environment. With the development of the economy and the progress of society, water pollution is also one of the problems that cannot be ignored. Due to the concentration of industry and commerce and dense population in my country's cities, the production of domestic sewage is large, and there are many types of pollutants and high loads. 80% of urban sewage is domestic sewage, mainly feces, rot and other sewage, and the pollution of the water environment is a typical type of organic pollution. Under the control o...

AI Technical Summary

Problems solved by technology

However, the above methods generally have problems such as harsh microbial cultivation conditions, ineffective effects, and insufficient application, as well as large equipment investment and high costs, and cannot be widely used in large-scale sewage sludge treatment projects.

The study believes that the main reason for the poor effect is that after the engineering bacteria with decomposition ability are added to the sewage sludge to be treated, the high concentration of nitrogen, phosphorus and other organic matter, lipids, heavy metals and other substances in the water environment will cause the function of some microorganisms. Loss and death; Some microorganisms that restrain each other with beneficial bacteria in the water environment, the adaptability and synergy of common engineering bacteria are not strong, and the loss is too large in the process of running in with the environment, so that they cannot perform efficiently and with high quality , so that the harmful substances in the sewage cannot be completely treated, resulting in the failure of treatment