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Chemical industry sewage treatment composite microbial agent and screening and preparing methods thereof

A technology for compounding microbial inoculants and chemical wastewater, applied in chemical instruments and methods, separation of microorganisms, biological water/sewage treatment, etc.

Pending Publication Date: 2019-03-01
江苏宜裕环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the deficiencies of the above-mentioned existing methods, the method of the present invention will be aimed at the common pollutants in the field of chemical environmental protection and the requirements for building a functional flora required for a stable flora, by adopting enrichment selective culture and large-scale fermentation The means to prepare a composite functional bacterial agent suitable for synergizing general chemical wastewater biochemical treatment systems

Method used

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  • Chemical industry sewage treatment composite microbial agent and screening and preparing methods thereof
  • Chemical industry sewage treatment composite microbial agent and screening and preparing methods thereof
  • Chemical industry sewage treatment composite microbial agent and screening and preparing methods thereof

Examples

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Effect test

Embodiment 1

[0080] Embodiment 1: screen, prepare the compound microbial bacterial agent that is used for chemical industry waste water treatment, flow process is as follows figure 1 shown

[0081] The screening and purification process can be carried out according to the content in the above specification, and will not be repeated here.

[0082] Through separation and purification from nature or artificial environment, 108 kinds of purely cultured microbial strains with the above three functions were screened. The principle of screening is to prepare selective medium according to the functions of the required strains or provide other selective conditions to make The desired strains proliferate rapidly while inhibiting the growth of unwanted strains. The selective medium prepared during screening is mainly prepared from microbial basic inorganic salt medium plus target pollutants. The formula of basic inorganic salt medium is as follows: Potassium dihydrogen phosphate: 1.0g, dipotassium h...

Embodiment 2

[0091] Embodiment 2: Composite microbial bacterial agent is used for feed additive wastewater treatment

[0092] The composite microbial bacterial agent disclosed by the invention is used to treat feed additive wastewater for producing betaine and allicin, and the treatment process is A / O+sedimentation tank. The water quality of the production wastewater is: COD 1100-1200mg / L, TN 300-400mg / L, NH3-N 60-70mg / L, and the wastewater contains a large amount of betaine and trimethylamine hydrochloride. In the treatment process, the residence time of section A is 12 hours, and the residence time of section O is 36 hours. In the AO biochemical pool, a combined filler accounting for 70% of the effective volume of the pool is installed as a bacteria attachment carrier. Into the AO biochemical pool, one-time dosing of the compound microbial bacterial agent prepared by the present invention accounting for 2% of the effective volume of the pool body, starting with a small flow of water for...

Embodiment 3

[0094] Embodiment 3: Composite microbial bacterial agent is used for antibiotic waste water treatment

[0095] Fermentation antibiotic wastewater has a high concentration of pollutants and a large amount of water, and the main components are fermentation residues, demulsifiers, residual antibiotic titers and their degradation products, as well as various organic solvents and some inorganic salts remaining in the antibiotic extraction process Wait. The composition of the wastewater is complex, the ratio of carbon and nitrogen nutrition is out of balance (excessive nitrogen source), and it contains a large amount of biochemical inhibitors such as sulfate and antibiotic potency, which is toxic and the wastewater is difficult to biochemically degrade. At present, most of the wastewater treatment efficiency in the domestic antibiotic industry is not high, and few of them meet the standard stably.

[0096] The colistin sulfate wastewater of an enterprise is treated with the compoun...

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Abstract

The invention comprises a composite microbial agent applicable to efficiency enhancement of common chemical industry sewage treatment systems. The composite microbial agent applicable to efficiency enhancement of the common chemical industry sewage treatment systems meets the demands on treatment on comment pollutants in existing chemical industry and environmental production as well as on establishment of functional bacteria required by a stable bacteria flora. According to one of the schemes, the composite microbial agent is composed of 108 microorganisms of three major functional types. When the composite microbial agent is added together with microbial growth promoting carriers, nutrient agents and the like into a biochemical system, the composite microbial agent can promote establishment of a complete food chain in the biochemical system through various microorganisms with special pollutant degrading capabilities and comprehensive metabolic manners to enhance utilization and metabolic decomposition of pollutants in sewage through the microorganisms, thereby achieving efficient reduction of COD (chemical oxygen demand), ammonia nitrogen, phosphorous, sulfur and like.

Description

technical field [0001] The invention belongs to the field of environmental protection, in particular to biological treatment of chemical wastewater. Background technique [0002] Wastewater biological treatment technology is the leading and core technology in the field of wastewater treatment. As an economical, reasonable and effective wastewater treatment technology, it plays an important role in the current municipal and industrial wastewater treatment fields. Wastewater biological treatment technology uses the metabolism of microorganisms in nature to decompose and transform organic matter in wastewater to achieve the purpose of water purification. Microorganisms obtain energy and nutrients needed for cellular synthesis from the whole process. The core of wastewater biological treatment technology is to cultivate and domesticate the dominant microbial flora suitable for specific types of wastewater, and maintain the microbial biomass and activity compatible with the conc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/16C12N1/02C02F3/34
CPCC02F3/34C02F3/347C12N1/02C12N1/16C12N1/20
Inventor 李志涛曾小明殷文若
Owner 江苏宜裕环保科技有限公司
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