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Composite microbial agent capable of reducing COD value of heavy-polluted wastewater

A compound bacterial agent, heavy pollution technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of different effects, achieve stable effect, fast response time, The effect of adaptability

Inactive Publication Date: 2019-09-17
GUANGDONG RUIJIE ENVIRONMENTAL PROTECTION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex and diverse wastewater environment, some composite bacterial agents on the market have different effects in different wastewater environments due to differences in the number of bacteria species, unit biomass, and the adaptability of microbial species to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A compound bacterial agent for reducing the COD value in heavily polluted wastewater, comprising the following components in parts by weight: 5 Bacillus cereus, 5 Pseudomonas putida, 15 Lactobacillus acidophilus, 13 Lactobacillus Brucella, 8 Rhodococcus round , Rhodospirillum rubrum 5, Aerobacillus 4, Clostridium beijerinckii 7, Lactobacillus zea 6, Candida flocculus 5, Acinetobacter johnsonii 4, Bacillus amyloliquefaciens 15, Acetobacter pasteurianus 8.

[0016] In particular, the composite bacterial agent of the present invention has good growth in waste water and strong adaptability.

[0017] The preparation method of the composite microbial agent of the present invention is as follows: respectively inoculate the above bacterial strains into the liquid culture medium according to the proportion, and sterilize at 121° C. for 20 minutes. The formula of the medium is: 3% brown sugar, 1% soybean (weighed and refined), 1% starch, MgSO 4 0.4%, K 2 PO 4 0.5%, FeSO 4 0...

Embodiment 2

[0019] A composite bacterial agent for reducing the COD value in heavily polluted wastewater, characterized in that it comprises the following components in parts by weight: Pseudomonas putida 1, Rhodococcus circulus 2, Rhodospirillum rubrum 2, Clostridium beijerinckii 5, Candida flocculate 1, Acinetobacter johnsonii 2, Acetobacter pasteurii 5, Bacillus mixed 13, Lactobacillus mixed 22.5.

[0020] In particular, the composite bacterial agent of the present invention has good growth in waste water and strong adaptability.

[0021] Further, the mixed bacillus comprises the following components in parts by weight: Bacillus cereus 1, Bacillus aerogenes 2, and Bacillus amyloliquefaciens 10.

[0022] Further, the mixed lactobacillus comprises the following components in parts by weight: 10 parts of Lactobacillus acidum, 10 parts of Lactobacillus brauchneri, 2.5 parts of Lactobacillus zeae.

[0023] The preparation method of the composite microbial agent of the present invention is ...

Embodiment 3

[0025] A composite bacterial agent for reducing the COD value in heavily polluted wastewater, characterized in that it comprises the following components in parts by weight: Pseudomonas putida 8.5, Rhodococcus circulus 8, Rhodospirillum rubrum 5, Clostridium beijerinckii 10, Candida flocculate 5, Acinetobacter johnsonii 5, Acetobacter pasteurii 12, Bacillus mixed 34.5, Lactobacillus mixed 48.

[0026] In particular, the composite bacterial agent of the present invention has good growth in waste water and strong adaptability.

[0027] Further, the mixed bacillus includes the following components in parts by weight: 8 Bacillus cereus, 8 Bacillus aerogenes, and 18.5 Bacillus amyloliquefaciens.

[0028] Further, the mixed lactobacilli include the following components in parts by weight: 25 parts by weight of Lactobacillus acidum, 15 parts by Lactobacillus brauchneri, and 8 parts by weight of Lactobacillus zeae.

[0029] The preparation method of the composite microbial agent of t...

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PUM

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Abstract

The invention provides a composite microbial agent capable of reducing a COD value of heavy-polluted wastewater. The composite microbial agent is characterized by comprising the following ingredients in parts by weight: 1-8.5 parts of Pseudomonas putida, 2-8 parts of Rhodococcus globerulus, 2-5 parts of Rhodospirillum rubrum, 5-10 parts of Clostridium beijerinckii, 1-5 parts of flocculating candida, 2-5 parts of Acinetobacter johnsonii, 5-12 parts of Acetobacter pasteurianus, 13-34.5 parts of hybrid bacillus and 22.5-48 parts of hybrid Lactobacilli. According to the composite microbial agent provided by the invention, the degradation efficacy and impact resistance to a degraded substrate are strengthened by using synergism of a variety of strain ingredient populations; and a degradation method is high in pertinency, high in response speed and simple in operation.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a composite bacterial agent for reducing the COD value in heavily polluted waste water. Background technique [0002] At present, common sewage treatment methods mainly include physical, chemical and biological methods. Physical treatment generally only removes about 40% of COD, and soluble organic matter cannot be removed. The chemical method uses some flocculants for flocculation and sedimentation, which has high economic cost, easy rebound and easy to cause secondary pollution. The biological method is currently a greener and more friendly method than the previous two treatment methods, and microbial remediation is the main method. Use the growth and reproduction of microorganisms to decompose oxidized organic matter and restore the self-purification ability of water. However, due to the complex and diverse wastewater environment, some composite ba...

Claims

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Application Information

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IPC IPC(8): C02F3/34
CPCC02F3/34C02F3/347
Inventor 谢海伟汪鑫琪何惠国胡朝涵王伟明
Owner GUANGDONG RUIJIE ENVIRONMENTAL PROTECTION ENG CO LTD
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