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A thermostable bacterium that promotes ammonia assimilation during sludge composting

A technology of assimilation and high temperature resistance, applied in the direction of bacteria, microorganism-based methods, biochemical equipment and methods, etc., can solve problems such as limiting the application and promotion of sludge composting, affecting the air quality of production workshops, and reducing the quality of composting products.

Active Publication Date: 2022-06-03
INST OF MICROBIOLOGY HEILONGJIANG ACADEMY OF SCI +1
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AI Technical Summary

Problems solved by technology

Sludge composting is one of the mainstream technologies for sludge stabilization and disposal. However, during the sludge composting process, a large amount of nitrogen leaves the material system in the form of ammonia and enters the atmosphere, which not only leads to the loss of nitrogen in the composting process, but also reduces the quality of composting products. , It also affects the air quality of the production workshop and the surrounding environment of the factory area, so the volatilization of ammonia gas limits the application and promotion of sludge composting

Method used

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  • A thermostable bacterium that promotes ammonia assimilation during sludge composting
  • A thermostable bacterium that promotes ammonia assimilation during sludge composting
  • A thermostable bacterium that promotes ammonia assimilation during sludge composting

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

Embodiment 1

[0024] Composting:

[0028] Wherein, step 2 compost fermentation 48 ± 2h into the compost high temperature period, this time the temperature in the compost has exceeded 50 ° C.

Embodiment 2

[0030] Composting:

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Abstract

A heat-resistant bacterium that promotes ammonia assimilation in the process of sludge composting, which is Bacillus mojavensis P2, is preserved in the China General Microorganism Culture Collection and Management Center, and the preservation number is CGMCC NO.14980. The strain can assimilate the ammonium ion in the sludge, reduce the generation and volatilization of ammonia in the sludge, and reduce the pollution of the sludge compost to the environment; moreover, the strain can withstand a high temperature of 65°C.

Description

A thermostable bacterium that promotes ammonia assimilation during sludge composting technical field [0001] The present invention relates to a high temperature resistant bacteria. Background technique With the rapid development of my country's urbanization construction and the continuous improvement of sewage treatment capacity, urban sewage treatment plants polluted Mud production is increasing day by day. Sludge composting is one of the mainstream technologies for sludge stabilization disposal, but a large amount of nitrogen is present in the sludge composting process. Elements leave the material system in the form of ammonia and enter the atmosphere, which not only leads to the loss of nitrogen in the composting process, but also reduces the composting yield. The quality of the products also affects the air quality of the production workshop and the surrounding environment of the factory, so the volatilization of ammonia restricts the composting of sludge. applic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12R1/07
CPCC12R2001/07C12N1/205Y02W30/40
Inventor 孟利强张淑梅张先成李晶宫海楠曹旭胡基华姜威刘宇帅陈镜宇
Owner INST OF MICROBIOLOGY HEILONGJIANG ACADEMY OF SCI
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