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Biological enhancer and method for improving the ability of wastewater aerobic microorganisms to degrade cod

An aerobic microorganism and biological enhancement technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc. It can solve the problem of high equipment operation and management requirements, difficult COD degradation treatment, and large sludge production. and other problems, to achieve the effect of reducing transportation costs and disposal costs, shortening residence time, and being subject to high organic load

Inactive Publication Date: 2014-10-08
珠海市德莱环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its operating cost is high, the amount of sludge produced is large, and the requirements for equipment operation and management are relatively high. At the same time, it is difficult to degrade soluble COD during Fenton treatment. This process can only be completely carried out in biochemical treatment systems. deal with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment one: Application of bioenhancer in aerobic treatment unit to treat papermaking white water

[0022] The measured COD of the papermaking white water raw water samples were 680mg / L, 620mg / L, 671mg / L, 598mg / L, 642mg / L, 606mg / L, 624mg / L, 661mg / L. In this example, the COD is reduced by adding a biological enhancer to the aerobic treatment unit.

[0023] Calculated in parts by mass, with the mass of 1 part of protein as the standard, protein, glucose, pectin, aluminum hydroxide and polysilicon are used to compound the raw materials in a ratio of 1:1:1:0.5:0.3 to obtain the biological enhancer. Then, take 1 1m 3 Aerobic treatment system (SBR treatment system), continuously add 100L / h of papermaking wastewater into the aerobic system, and then add 5g of biological enhancer (after activation treatment) every day for 20 consecutive days, during which water is continuously fed. Stop adding biological enhancer after 20 days, and continue to feed raw water. After 25 d...

Embodiment 2

[0024] Embodiment two: Application of bioenhancer in aerobic treatment unit to treat papermaking white water

[0025] The measured COD of the papermaking white water raw water samples were 542mg / L, 450mg / L, 497mg / L, 513mg / L, 499mg / L, 504mg / L. In this example, the COD is reduced by adding a biological enhancer to the aerobic treatment unit.

[0026] Calculated in parts by mass, with the mass of 1 part of protein as the standard, protein, glucose, pectin, aluminum hydroxide and polysilicon are used to compound the raw materials in a ratio of 1:1:1:0.1:0.1 to obtain the biological enhancer. Then, take 1 1m 3 Aerobic treatment system (SBR treatment system), continuously add 100L / h of papermaking wastewater into the aerobic system, and then add 5g of biological enhancer (after activation treatment) every day for 20 consecutive days, during which water is continuously fed. After 20 days, stop adding the biological enhancer, and continue to feed the raw water. After 25 days, start...

Embodiment 3

[0027] Embodiment three: Application of bioenhancer in aerobic treatment unit to treat packaging paper wastewater

[0028] The measured COD of packaging paper wastewater raw water samples were 1312mg / L, 1467mg / L, 1409mg / L, 1376mg / L, 1408mg / L, 1412mg / L. In this implementation, the COD is reduced by the aerobic treatment unit after adding the biological enhancer.

[0029] Calculated in parts by mass, taking the mass of 1 part of protein as the standard, take protein, glucose, pectin, aluminum hydroxide and polysilicon and compound the raw materials according to the ratio of 1:5:5:10:10 to prepare the biological enhancer. Then, take 1 1m 3 Aerobic treatment system with a surface load 0.6m 3 / m 2 · h secondary settling tank. Continuously add 100L / h of papermaking wastewater into the aerobic system, and then add 6g of bio-enhancer (after activation treatment) every day for 22 consecutive days, during which time the water is continuously fed. Stop adding biological enhancer ...

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Abstract

The present invention aims to provide a biological enhancer with low cost, high treatment efficiency, long action time and no secondary pollution to improve the ability of wastewater aerobic microorganisms to degrade COD, and a method for degrading COD in wastewater by using the enhancer method. Calculated in parts by mass, the biological enhancer includes the following components: 1 part of protein, 1 to 5 parts of glucose, 1 to 5 parts of pectin, 0.1 to 10 parts of aluminum hydroxide, and 0.1 to 10 parts of polysilicon; The method for treating wastewater includes the following steps: (1) adding bio-enhancer and water into the dissolving facility, stirring evenly, and performing activation treatment for 1-8 hours; (2) throwing the activated and dissolved bio-enhancer into Add it to the aerobic treatment unit for wastewater treatment, once a day, and last for 15 to 30 days. During this process, the aerobic treatment unit operates normally. The invention can be applied to the field of sewage treatment.

Description

technical field [0001] The invention relates to a biological enhancer, in particular to a biological enhancer for improving the ability of waste water aerobic microorganisms to degrade COD and a method for using the enhancer to improve the ability of waste water aerobic microorganisms to degrade COD. Background technique [0002] With the process of world economy and industrialization, the demand for water is constantly increasing, followed by an increase in the discharge of waste water, and the discharge standards are becoming more and more stringent. Papermaking wastewater mainly comes from industrial sectors such as pulp mills, paper mills, pulp and paper joint enterprises, and some paper processing enterprises. Papermaking enterprises have a large amount of wastewater discharge, high concentration of organic matter, and poor biochemical properties of wastewater, which has attracted widespread attention from all walks of life at home and abroad. For example, the mid-stag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12C02F3/34
CPCY02W10/10
Inventor 徐明好周宗南
Owner 珠海市德莱环保工程有限公司
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