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

A compound microbial agent, high ammonia nitrogen technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of ineffective improvement of water body material circulation, high operating cost of activated sludge method, and microbial strains Single problem, to achieve the effect of digestion of pollutants and organic matter in river bottom sludge, enhancement of ammonia nitrogen degradation ability and stability, and short treatment time

Inactive Publication Date: 2021-02-23
广东新洁源环保技术有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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. Re

Method used

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Example Embodiment

[0020]Example 1

[0021]A composite microbial inoculum for treating sewage with high ammonia nitrogen and a preparation method thereof. The composite microbial inoculum includes Shewanella putrefaction, Pseudomonas testosterone, nitrifying bacteria, nitrosating bacteria, Bacillus subtilis, Lactomicrobe, Rhodococcus faecalis, yeast, actinomycetes and photosynthetic bacteria, the specific steps of the preparation method are:

[0022](A) Solid slant culture: inoculate nitrifying bacteria, nitrosating bacteria and Bacillus subtilis in nitrifying solid medium, nitrosating solid medium and beef extract peptone medium, respectively, and cultivate them to fully activate the strains;

[0023](B) Inoculate the activated nitrifying bacteria, nitrosating bacteria and Bacillus subtilis in step (a) into nitrifying liquid medium, nitrosating liquid medium and beef extract peptone liquid medium, respectively, when the liquid culture density is OD600 When the value reaches 0.6-0.8, stop the cultivation to fo...

Example Embodiment

[0032]Example 2

[0033]A composite microbial inoculum for treating sewage with high ammonia nitrogen and a preparation method thereof. The composite microbial inoculum includes Shewanella putrefaction, Pseudomonas testosterone, nitrifying bacteria, nitrosating bacteria, Bacillus subtilis, Lactomicrobe, Rhodococcus faecalis, yeast, actinomycetes and photosynthetic bacteria, the specific steps of the preparation method are:

[0034](A) Solid slant culture: inoculate nitrifying bacteria, nitrosating bacteria and Bacillus subtilis in nitrifying solid medium, nitrosating solid medium and beef extract peptone medium, respectively, and cultivate them to fully activate the strains;

[0035](B) Inoculate the activated nitrifying bacteria, nitrosating bacteria and Bacillus subtilis in step (a) into nitrifying liquid medium, nitrosating liquid medium and beef extract peptone liquid medium, respectively, when the liquid culture density is OD600 When the value reaches 0.6-0.8, stop the cultivation to fo...

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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 ...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12N1/16C12N11/14C02F3/34C02F101/16C02F101/30C12R1/125C12R1/01C12R1/38
CPCC02F3/342C02F3/347C02F3/348C02F2101/16C02F2101/30C02F2303/02C12N1/16C12N1/20C12N11/14
Inventor 班炜荧莫若非
Owner 广东新洁源环保技术有限公司
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