Compound microbial agent for river regulation, preparation method of compound microbial agent and river sewage treatment method

Abstract

The invention discloses a compound microbial agent for river regulation, a preparation method of the compound microbial agent and a river sewage treatment method. In the compound microbial agent, a microbial agent A is made by mixing of five fermentation liquors formed by single culture of bacillus megaterium CCTCC NO.M2012352, bacillus subtillis CGMCC NO.1.2162, bacillus licheniformis CGMCC NO.1.6510, bacillus amyloliquefaciens CGMCC NO.1.7463 and phanerochaete chrysosporium BKM-F1767; a microbial agent B is made by mixing of two fermentation liquors formed by single culture of debaryomyces hansenii CGMCC NO.5770 and saccharomyces cerevisiae CGMCC NO.3003. The compound microbial agent has advantages that amino nitrogen and nitro nitrogen in water can be degraded, phosphorus concentration is decreased, and precipitation of solid suspended particles, bacterial cells and colloid particles in water is realized.

Description

technical field [0001] The invention belongs to the technical field of environmental microbes, and relates to a compound microbial bacterial agent for river channel management, a preparation method thereof, and a river channel sewage treatment method. Background technique [0002] Urban rivers and lakes are water environments that are closely connected with human production and life. With the growth of population and the acceleration of urbanization, a large amount of pollutants are directly discharged into rivers and lakes, resulting in organic matter, ammonia nitrogen, total phosphorus and hydrogen sulfide in the water. Pollutants such as pollutants continue to increase, and the natural purification capacity of the water body is seriously insufficient, seriously restricting the sustainable development of the economy and the environment, and endangering human health. [0003] The traditional means of removing water pollutants mainly include physical and chemical methods. Al...

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Problems solved by technology

The main practice at present is to add compound microbial bacterial agents in polluted water at one time. These existing technologies still have the following problems: 1) If the types and quantities of bacteria added are too small, due to the complexity of the types of water pollution sources in my country , it is difficult to guarantee the effect of water pollution control; and if there are too many types and quantities of bacteria, there may be competition or even mutual restraint among the bacteria, which will also affect the effect of pollution control

In addition, the microorganisms released in large numbers will cause secondary pollution to the water if they are not treated in time; 2) The composite microbial agents used are mainly to degrade organic pollutants. Along with various solid suspended particles, colloidal particles, etc., the removal of such pollutants is mainly by physical or chemical methods at present. Although there are also reports on microbial flocculants, there are very few types of high-efficiency microbial flocculant-producing bacteria that have been screened so far. The vast majority remain in the laboratory stage

Therefore, there is still a lack of comprehensive and efficient strains and mature repair technology, resulting in unsatisfactory application of microbial comprehensive repair technology in industry

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