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Method and device for improving treatment efficiency of anaerobic reactor in pharmaceutical wastewater treatment process

An anaerobic reactor and pharmaceutical wastewater technology, applied in natural water treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of older granular sludge, COD removal rate and methane production , Reduce the COD removal rate and methane production of anaerobic reactors, etc.

Active Publication Date: 2021-04-27
湖北金润德环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the optimization of the anaerobic reactor structure has entered a bottleneck stage, and it is very difficult to further improve the COD removal rate and methane production
At the same time, with the long-term operation of the anaerobic reactor, unfavorable phenomena such as sludge calcification and older granular sludge will still occur, thereby reducing the COD removal rate and methane production of the anaerobic reactor

Method used

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  • Method and device for improving treatment efficiency of anaerobic reactor in pharmaceutical wastewater treatment process
  • Method and device for improving treatment efficiency of anaerobic reactor in pharmaceutical wastewater treatment process
  • Method and device for improving treatment efficiency of anaerobic reactor in pharmaceutical wastewater treatment process

Examples

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Embodiment 1

[0065] In this example, the high-concentration organic wastewater from a certain pharmaceutical factory in Hubei is used as the treatment object. The COD concentration is 10000mg / L, B / C=0.35, the COD of the effluent from the anaerobic reactor is 3000mg / L, and the pH is 5.8.

[0066] A method for improving the treatment efficiency of the anaerobic reactor in the above-mentioned high-concentration organic wastewater treatment process of a certain pharmaceutical factory in Hubei, the steps are as follows:

[0067] (1) Microbial domestication system:

[0068] The first microbial acclimatization culture:

[0069] When it is first used, add 55% of its volume anaerobic activated sludge (directly take anaerobic activated sludge from the anaerobic reactor of the original treatment process) in the microbial acclimation incubator, and then supplement the anaerobic reactor effluent to the microorganism 95% of the volume of the acclimatization incubator, add conventional nutrients and mic...

Embodiment 2

[0097] In this example, a high-concentration organic wastewater from a pharmaceutical factory in Hunan is used as the treatment object. The COD concentration is 15000 mg / L, B / C=0.30, the COD of the effluent from the anaerobic reactor is 4530 mg / L, and the pH is 6.2.

[0098] A method for improving the treatment efficiency of the anaerobic reactor in the above-mentioned high-concentration organic wastewater treatment process of a certain pharmaceutical factory in Hunan, the steps are as follows:

[0099] (1) Microbial domestication system:

[0100] The first microbial acclimatization culture:

[0101] When it is first used, add 55% of its volume anaerobic activated sludge (directly take anaerobic activated sludge from the anaerobic reactor of the original treatment process) in the microbial acclimation incubator, and then supplement the anaerobic reactor effluent to the microorganism 95% of the volume of the acclimatization incubator, adding conventional nutrients and micronut...

Embodiment 3

[0107] In this embodiment, high-concentration organic wastewater from a pharmaceutical factory in Guangdong is used as the treatment object, and its COD concentration is 12000 mg / L, and B / C=0.43. The COD of the effluent from the anaerobic reactor is 3670mg / L, and the pH is 6.7.

[0108] A method for improving the treatment efficiency of the anaerobic reactor in the above-mentioned high-concentration organic wastewater treatment process of a pharmaceutical factory in Guangdong, the steps are as follows:

[0109] (1) Microbial domestication system:

[0110] The first microbial acclimatization culture:

[0111] When it is first used, add 55% of its volume anaerobic activated sludge (directly take anaerobic activated sludge from the anaerobic reactor of the original treatment process) in the microbial acclimation incubator, and then supplement the anaerobic reactor effluent to the microorganism 95% of the volume of the acclimatization incubator, add conventional nutrients and mi...

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Abstract

The invention belongs to the technical field of industrial sewage treatment, and particularly discloses a method and a device for improving the treatment efficiency of an anaerobic reactor in a pharmaceutical wastewater treatment process, and the device comprises the following two systems: a microorganism domestication system which is used for carrying out domestication culture on microorganisms in an anaerobic reactor, and pumping the domesticated microorganisms into the anaerobic reactor; and a biogas impurity removal and utilization system which is used for enabling biogas to sequentially pass through a CO2 and H2S removal system, a dehydration system and a biogas storage tank; feeding part of biogas into a boiler for combustion through a booster fan; and enabling the other part of the biogas to be mixed with effluent of an anaerobic reflux pump and to enter the anaerobic reactor, so that the aims of mixing and stirring gas and liquid and reducing the concentration of CO2 in an anaerobic system are fulfilled. According to the method disclosed by the invention, the COD (Chemical Oxygen Demand) removal rate of the anaerobic reactor is increased by about 10% and the methane yield is increased by about 15% by combining the microbial acclimation system, the marsh gas impurity removal system and the anaerobic reactor, so that the treatment efficiency of the anaerobic reactor is greatly improved, and favorable conditions are provided for subsequent working sections.

Description

technical field [0001] The invention relates to the technical field of industrial sewage treatment, in particular to a method and device for improving the treatment efficiency of an anaerobic reactor in a pharmaceutical wastewater treatment process. The method of the invention is suitable for the treatment of high-concentration organic wastewater in the pharmaceutical industry. Background technique [0002] With the rapid development of my country's chemical manufacturing industry, high-concentration organic wastewater in the pharmaceutical industry has become one of the main industrial wastewater. The difficulty in treating high-concentration organic wastewater in the pharmaceutical industry lies in the high concentration of pollutants; low COD removal rate; low methane production; wastewater contains substances that are difficult for microorganisms to degrade or even have an inhibitory effect on microorganisms. [0003] The domestic treatment of this type of wastewater mai...

Claims

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Application Information

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IPC IPC(8): C02F3/28B01D53/14C02F101/30C02F103/34
CPCC02F3/28B01D53/1475B01D53/1468C02F2101/30C02F2103/343Y02W10/10Y02E50/30
Inventor 杜颖李茂英彭秋菊卢琼郑元锋李笛李仲盛王灵丹
Owner 湖北金润德环保技术有限公司
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