Complex microbial agent used for treating high ammonia nitrogen wastewater and preparation method thereof

Abstract

The invention relates to the technical field of complex microbial agents for treating high ammonia nitrogen wastewater, and discloses a complex microbial agent used for treating high ammonia nitrogenwastewater and a preparation method thereof. Compound microbial digestive bacteria liquid in a step (c),compound microbial adsorption bacteria liquid in a step (e) and curing cross-linked adsorption particles in a step (g) are mixed according to a volume ratio being 3-5: 3-5: 2-4 so as to obtain the complex microbial agent, so that the growth of harmful microorganisms can be inhibited, the COD andammonia nitrogen content in wastewater can be effectively reduced, the removal rate is obviously superior to single strains, self-purification functions of water can be enhanced, and the decomposition of organic matters in the water can be accelerated; significant water purification effects can be achieved; the decomposition ability on ammonia nitrogen and stability of the complex microbial agentcan be significantly enhanced; dominant bacterial communities can be formed in wastewater; and short treatment time can be realized, and the ammonia nitrogen indexes in wastewater can be rapidly reduced.

Description

technical field [0001] The invention relates to the technical field of compound microbial bacterial agent for treating high ammonia nitrogen sewage, in particular to a compound microbial bacterial agent for treating high ammonia nitrogen sewage and a preparation method thereof. Background technique [0002] The eutrophication of water body has become a problem that people pay more and more attention to, and the state has strict regulations and requirements on sewage discharge standards. As an important indicator of water body, ammonia nitrogen has been widely concerned about its treatment. Similar to COD, ammonia nitrogen is also the main oxygen-consuming pollutant in water bodies. The oxidative decomposition of ammonia nitrogen consumes dissolved oxygen in the water body, thus making the water body black and smelly. The non-ionic ammonia in ammonia nitrogen is highly toxic to aquatic organisms, and some studies have shown that its harm is dozens of times greater than that ...

AI Technical Summary

Problems solved by technology

The activated sludge method that has emerged in the past few years has been widely used in sewage treatment, but the operating cost of the activated sludge method is high, and the removal rate of COD (Chemical OxygenDemand, Chemical OxygenDemand) and ammonia nitrogen is not ideal. Relatively simple, it can only degrade specific pollutants, cannot effectively improve the material circulation of the water body, and the treatment effect is not ideal. Therefore, we propose a composite microbial agent for treating high ammonia nitrogen sewage and its preparation method