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Microbialactivity enhancing liquid agent for sewage treatment

A technology for microbial activity and sewage treatment, applied in the field of water treatment, can solve the problems of poor water quality and water impact resistance, easy sludge expansion, etc., to achieve the effect of high efficiency and rapidity in strengthening capacity, eliminating equipment renovation costs, and convenient use.

Inactive Publication Date: 2011-06-29
北京金源化学集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biological treatment systems generally have problems such as easy sludge swelling and poor impact resistance to water quality and quantity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take sewage from the water inlet of a domestic sewage treatment plant. The main indicators of water quality before treatment are: chemical oxygen demand COD Cr The ammonia nitrogen value is 200-300mg / L, and the ammonia nitrogen value is 30-40mg / L. The activated sludge used is taken from the aeration tank of the sewage plant. The liquid used is prepared through the following steps:

[0024] 1) Prepare 1# solution: Accurately weigh 3mg pineapple enzyme, 1mg cellulase, 10mg yeast powder, 1mg ribonucleic acid, 3mg calcium sulfate, 0.1mg vitamin B3 and 7g glucose, put them in a beaker, dissolve and transfer to 250mL capacity In the bottle, make up to the mark;

[0025] 2) Preparation of 2# solution: Accurately weigh 7.5 mg of chitosan in a beaker, add an aqueous solution containing 1.2 g of citric acid, dissolve it, transfer it to a 250 mL volumetric flask, and set the volume to the mark;

[0026] 3) Mix the prepared above two solutions and store in a refrigerator at 0-4°...

Embodiment 2

[0029] Take the sewage at the water inlet of a sewage plant, the sewage is composed of domestic sewage and industrial wastewater. The main indicators of water quality before treatment are: chemical oxygen demand COD Cr The ammonia nitrogen value is 600-700mg / L, and the ammonia nitrogen value is 30-40mg / L. The activated sludge used is taken from the aeration tank of the sewage plant. The liquid used is prepared through the following steps:

[0030] 1) Prepare 1# solution: accurately weigh 2mg papain, 3mg cellulase, 1.5mg lipase, 3mg laccase, 20mg yeast powder, 20mg repeatedly frozen yeast powder, 1mg zinc sulfate, 6mg calcium sulfate, 0.1mg Vitamin B 1 , 0.5mg vitamin B 5 , 0.05mg of biotin and 1g of sucrose are placed in a beaker, dissolved and transferred to a 250mL volumetric flask, and the volume is set to the mark;

[0031] 2) Preparation of 2# solution: Accurately weigh 1mg of chitosan and 3mg of chitin in a beaker, add an aqueous solution containing 2g of mixed acid...

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Abstract

The invention relates to a microbialactivity enhancing liquid agent for sewage treatment. In the liquid agent, on one hand, a carrier, enzyme and a nutrient substance capable of promoting a catalytic function of sludge zoogloea are combined with one another, so activity of beneficial microorganism in sludge is enhanced and organic pollutants and the like are catalytically decomposed quickly; and on the other hand, the carrier enhances sewage biological treatment capacity by improving a structure of the sludge zoogloea. The liquid agent has the characteristics of convenience of use, small using amount, high-efficient and quick reinforcing ability and can be applied to biological treatment units for domestic sewage and industrial wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a microbial activity enhancing liquid agent used in the treatment of domestic sewage and industrial wastewater. Background technique [0002] The biological treatment technology represented by the activated sludge process is the main treatment process for domestic sewage and most industrial wastewater. Biological treatment systems generally have problems such as easy sludge swelling and poor impact resistance to water quality and quantity. The treatment efficiency of the system is closely related to the quality of microbial activity. Therefore, researchers at home and abroad have carried out different degrees of research on the activation of microorganisms by using technologies such as bioaugmentation, microbial immobilization, and promotion of biodegradation processes, and have made certain progress. For example, in the invention patent [CN1278950C] of Tsinghua Univers...

Claims

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Application Information

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IPC IPC(8): C02F3/34
Inventor 张和平李丽霞陈朝晖邱明建赵磊张雅丽李海滨于淑利
Owner 北京金源化学集团有限公司
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