Special treatment microbial agent for sewage containing alcohol organic substance and treatment method

A technology of organic substances and bacterial agents, which is applied in the field of bioengineering, can solve the problems of inconvenient preparation and use of oxidants, low process operation safety, and increased cost of hazardous waste treatment, so as to save costs, improve removal efficiency, and suppress impact.

Active Publication Date: 2019-03-12
CHAMBROAD CHEM IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical oxidation method uses O 3 , Cl 2 , HClO 3 Catalytic oxidation, etc., but the preparation and use of the oxidant is very inconvenient
[0006] Patent CN102674528 B provides a method for treating low-concentration methanol wastewater with ultrasonic wave and ozone. The equipment cost is high, and activated carbon and catalyst are introduced in the treatment process, which increases the cost of hazardous waste treatment and the process operation safety is low.

Method used

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  • Special treatment microbial agent for sewage containing alcohol organic substance and treatment method

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Experimental program
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Effect test

Embodiment 1

[0063] A company produces a coal-based hydrogen wastewater with a COD value of about 16,000mg / L. After analysis, the organic substances mainly include alcohols such as methanol and ethanol.

[0064] Treat this waste water with biochemical method, add facultative anaerobic bacteria Pichia pastoris to the activated sludge system of anaerobic tank, the addition amount is W / V 1‰ (W is the quality of bacterial agent, V is the quality of anaerobic tank Effective pool capacity), outdoor temperature 25°C, stirring 50rpm, after sludge and bacteria exposure for 1 day, let it settle for 1 hour, discard the supernatant, and add nutrient salt-added coal hydrogen wastewater to the activity of the anaerobic pool In the sludge system, make the COD in the anaerobic tank system 4000mg / L, adjust the pH of the system to 7.5 with sodium hydroxide, stir at 50rpm, the dissolved oxygen is <0.5mg / L, measure the COD every day, and check the pH. The concentration of COD in the medium dropped to 2000mg / L...

Embodiment 2

[0071] COD, NH 3 -N, volatile phenol, SS, etc., belong to high-concentration organic sewage.

[0072] Add facultative anaerobic bacteria Lactobacillus subspecies plantarum and Pichia pastoris to the activated sludge system of anaerobic tank, the addition amount is W / V2‰, wherein, the mass ratio of Pichia pastoris and Lactobacillus plantarum subspecies plantarum is 1:1, outdoor temperature 30°C, stirring 50rpm, after the sludge and bacterial agent are stuffy exposed for 1d, let it settle for 1h, discard the supernatant,

[0073] Add the coke oven gas waste water with nutrient salts into the activated sludge system of the above-mentioned anaerobic tank, so that the COD in the anaerobic tank system is 2500 mg / L, adjust the pH of the system to 8.0 with sodium hydroxide, stir at 50 rpm, dissolve oxygen <0.5mg / L, measure its COD every day, check pH, 2d when the COD concentration in the system drops to 1500mg / L, let the sludge settle when it is still for 2.5h, discard the supernatan...

Embodiment 3

[0081] In the industrial production of methanol, the distillation raffinate discharged from the bottom of the rectification tower mainly contains methanol, ethanol, higher alcohols and aldehydes and a small amount of long-chain compounds. Its COD content is relatively high, and it belongs to high-concentration organic wastewater. This embodiment is referred to as methanol wastewater.

[0082] Add facultative anaerobic bacteria Lactobacillus subsp. plantarum and Pichia pastoris to the activated sludge system of the anaerobic tank, and the addition amount is W / V5‰, wherein, the mass ratio of Pichia pastoris and Lactobacillus plantarum subspecies plantarum is 1:0.8, the outdoor temperature is 37°C, stirring 50rpm, after the sludge and bacterial agent are stuffy exposed for 1d, let it settle for 1h, discard the supernatant,

[0083]Add methanol wastewater with nutrient salts into the activated sludge system of the above-mentioned anaerobic tank, so that the COD in the anaerobic tan...

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Abstract

The invention belongs to the technical field of bioengineering, and provides a special treatment microbial agent for sewage containing an alcohol organic substance and a treatment method. The specialtreatment microbial agent for the sewage containing the alcohol organic substance comprises one or more of pichia pastoris, lactobacillus plantarum plant subspecies, bacillus cereus, acinetobacter, alkali-producing bacteria and monilia tropicalis. The special treatment microbial agent for the sewage containing the alcohol organic substance is added into active sludge, so that high load can be effectively tolerated or harmful substances can be effectively inhibited; the removal efficiency of COD (Chemical oxygen demand) in the original biochemical system is improved; a physicochemical pre-treatment process is saved; the cost is reduced; and the treated sewage reaches comprehensive tank emission standards, and is free of side effect on an operator.

Description

technical field [0001] The invention belongs to the technical field of bioengineering and provides a bacterial agent specially used for treating sewage containing alcoholic organic matter and a treatment method. Background technique [0002] In order to make up for the lack of clean fuels, coal-to-hydrogen will quickly become one of the leading industries in the traditional coal chemical industry. The country's advocacy of high-efficiency and clean energy, the demand for the development of alternative energy sources for oil, the full use of low-quality coal resources, and the requirements for reducing environmental pollution, these It has brought a broad market to the development of the new generation of coal-to-hydrogen industry. However, coal-to-hydrogen is a high-water-consuming industry with a large demand for water resources. The problem of the production wastewater treatment has become a bottleneck restricting the development of the coal-to-hydrogen industry. The main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/16C12N1/20C02F3/34C02F101/34C12R1/84C12R1/25C12R1/085C12R1/01C12R1/05C12R1/74
CPCC12N1/16C12N1/20C02F3/34C02F3/347C02F2101/34
Inventor 魏征马韵升栾波杨传伦潘冬梅杨丹丹吴志红王杉杉
Owner CHAMBROAD CHEM IND RES INST CO LTD
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