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Enzyme preparation for treating papermaking wastewater

A technology for papermaking sewage and enzyme preparations, which is used in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc.

Inactive Publication Date: 2014-03-26
郭云武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of enzyme preparation for processing papermaking sewage in order to solve the shortcoming of existing papermaking sewage treatment agent

Method used

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  • Enzyme preparation for treating papermaking wastewater

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Experimental program
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Effect test

Embodiment 1

[0011] Papermaking sewage treatment agent A is composed of the following components by weight ratio: 60 parts of mixed enzyme preparation, 8 parts of ferrous sulfate, 40 parts of citric acid, 45 parts of sodium acetate, and 150 parts of chitin. The mixed enzyme preparation includes cellulase, hemicellulase, oxidoreductase, pectinase, dehydrogenase. The effective enzyme activity ratio of cellulase, hemicellulase, oxidoreductase, pectinase and dehydrogenase in the mixed enzyme preparation is: 5:5:3:4:2.

Embodiment 2

[0013] Papermaking sewage treatment agent B is composed of the following components by weight ratio: 80 parts of mixed enzyme preparation, 10 parts of ferrous sulfate, 50 parts of citric acid, 50 parts of sodium acetate, and 200 parts of chitin. The mixed enzyme preparation includes cellulase, hemicellulase, oxidoreductase, pectinase, dehydrogenase. The effective enzyme activity ratio of cellulase, hemicellulase, oxidoreductase, pectinase and dehydrogenase in the mixed enzyme preparation is: 5:5:3:4:2.

Embodiment 3

[0015] Papermaking sewage treatment agent C is composed of the following components by weight ratio: 50 parts of mixed enzyme preparation, 5 parts of ferrous sulfate, 30 parts of citric acid, 40 parts of sodium acetate, and 100 parts of chitin. The mixed enzyme preparation includes cellulase, hemicellulase, oxidoreductase, pectinase, dehydrogenase. The effective enzyme activity ratio of cellulase, hemicellulase, oxidoreductase, pectinase and dehydrogenase in the mixed enzyme preparation is: 5:5:3:4:2.

[0016] Weigh 1Kg of treatment agents A, B, and C and add them to 200Kg of papermaking wastewater, control the temperature at 25°C, stir continuously for 1 hour, and measure the contents of COD, BOD, SS, and metal ions respectively. The test results are shown in Table 1.

[0017] Table 1

[0018]

[0019] It can be seen that the sewage treatment agent of the present invention can effectively reduce the COD, BOD, SS and metal ion content of sewage.

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Abstract

The invention provides an enzyme preparation for treating papermaking wastewater. The enzyme preparation comprises a mixed enzyme preparation, ferrous sulfate, citric acid, sodium acetate and chitin. The enzyme preparation can quickly take an effect, the process control is easy, and the contents of COD (Chemical oxygen demand), BOD (Biochemical Oxygen Demand), SS (Suspended Solids) and metal ions in the enzyme preparation are effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment agents, in particular to an enzyme preparation for treating papermaking sewage. Background technique [0002] The paper industry pollutes seriously and discharges a large amount of sewage. The discharge of paper industry sewage into rivers will seriously damage the ecological balance. In the existing sewage treatment methods of paper mills, the treatment effect is not ideal, and the discharge requirements cannot be met. The treated sediment cannot be recycled. Some treatment agents add bacterial flora, which makes the process difficult to control, and most treatment agents have the disadvantages of single function and slow treatment speed. Contents of the invention [0003] The object of the present invention is to provide an enzyme preparation for treating papermaking sewage in order to solve the shortcomings of existing papermaking sewage treatment agents. The enzyme preparation ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 牟军平刘晓
Owner 郭云武
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