Treatment method of silkworm cocoon degumming wastewater

A treatment method and wastewater technology are applied in the field of treatment of silkworm cocoon degumming wastewater, which can solve the problems of water body loss of self-purification ability, energy waste, environmental pollution, etc., and achieve the effects of reducing environmental and water pollution, improving treatment effect, and protecting the environment.

Inactive Publication Date: 2017-11-24
HEFEI JUFENG THROWING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silk is the lightest, softest and thinnest natural fiber in nature. It is one of the earliest animal fibers used by humans. It is light and slender. Weaving various silks and satins and knitwear, and used in the fields of industry, national defense and medicine; Fatty acid or alkali, flowing into the river will consume a large amount of dissolved oxygen in the water, causing the water body to lose its self-purification ability, causing environmental pollution and a large amount of energy waste. Therefore, a treatment method for silkworm cocoon degumming wastewater is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A treatment method for silkworm cocoon degumming wastewater, comprising the following steps:

[0020] (1) Acid-base adjustment: adjust the pH of the degumming wastewater to 5.3~5.6, so that the degumming wastewater can reduce the acid-base irritation, which is beneficial to the later treatment, improves the treatment effect, and obtains the acid-base adjusted wastewater;

[0021] (2) Enzymolysis: Add compound enzyme to acid-base adjusted wastewater to make the mass concentration 0.04%, stir for 2 hours, add protease, and continue enzymolysis for 4 hours, first add compound enzyme to decompose macromolecular fat and Pectin component, then add protease to decompose a large amount of sericin in wastewater, avoid the oxidation and decomposition of fat and protein after wastewater discharge consumes a lot of dissolved oxygen, reduce environmental and water pollution, and obtain enzymatic wastewater;

[0022] (3) Primary fermentation: Add sodium selenite to the enzymolysis wa...

Embodiment 2

[0032] A treatment method for silkworm cocoon degumming wastewater, comprising the following steps:

[0033] (1) Acid-base adjustment: adjust the pH of the degumming wastewater to 5.3~5.6, so that the degumming wastewater can reduce the acid-base irritation, which is beneficial to the later treatment, improves the treatment effect, and obtains the acid-base adjusted wastewater;

[0034] (2) Enzymolysis: Add compound enzyme to acid-base adjusted wastewater to make the mass concentration 0.05%, stir for 2 hours, add protease, continue enzymolysis for 4 hours, first add compound enzyme to decompose macromolecular fat and Pectin component, then add protease to decompose a large amount of sericin in wastewater, avoid the oxidation and decomposition of fat and protein after wastewater discharge consumes a lot of dissolved oxygen, reduce environmental and water pollution, and obtain enzymatic wastewater;

[0035] (3) Primary fermentation: Add sodium selenite to the enzymolysis wastew...

Embodiment 3

[0045] A treatment method for silkworm cocoon degumming wastewater, comprising the following steps:

[0046] (1) Acid-base adjustment: adjust the pH of the degumming wastewater to 5.3~5.6, so that the degumming wastewater can reduce the acid-base irritation, which is beneficial to the later treatment, improves the treatment effect, and obtains the acid-base adjusted wastewater;

[0047](2) Enzymolysis: Add compound enzyme to acid-base adjusted wastewater to make the mass concentration 0.06%, stir for 3 hours, add protease, continue enzymolysis for 5 hours, first add compound enzyme to decompose macromolecular fat and Pectin component, then add protease to decompose a large amount of sericin in wastewater, avoid the oxidation and decomposition of fat and protein after wastewater discharge consumes a lot of dissolved oxygen, reduce environmental and water pollution, and obtain enzymatic wastewater;

[0048] (3) Primary fermentation: Add sodium selenite to the enzymolysis wastewa...

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Abstract

The invention mainly relates to the technical field of silk processing, and discloses a treatment method of silkworm cocoon degumming wastewater. The treatment method comprises the following steps: carrying out potential of hydrogen regulation, carrying out enzymolysis, carrying out primary fermentation, carrying out secondary fermentation and discharging; the method is simple and convenient to operate, does not need special instruments and equipment, and is convenient to popularize; a removal rate of protein in the degumming wastewater reaches 97.3 percent, and a fat removal rate reaches 98.1 percent; macromolecular nutrients in the degumming wastewater are remarkably reduced, the environment is protected, and energy sources are solved; the degumming wastewater contains a large quantity of acid or alkali; after the potential of hydrogen regulation is carried out, the acid-alkali irritation of the degumming wastewater is reduced, the post-period treatment is facilitated, and the treatment effect is improved; after the potential of hydrogen is regulated, a complex enzyme is added and is used for carrying out the enzymolysis to decompose macromolecular fat and pectin components in the wastewater; then proteinase is added to decompose a large quantity of sericin protein in the wastewater, so that a condition that a large quantity of dissolved oxygen is consumed by oxidization and decomposition of fat and protein after the wastewater is discharged is avoided, and environment and water body pollution is alleviated.

Description

technical field [0001] The invention mainly relates to the technical field of silk processing, in particular to a treatment method for silkworm cocoon degumming wastewater. Background technique [0002] Silk is the lightest, softest and thinnest natural fiber in nature. It is one of the earliest animal fibers used by humans. It is light and slender. Weaving various silks and satins and knitwear, and used in the fields of industry, national defense and medicine; Fatty acid or alkali, flowing into the river will consume a large amount of dissolved oxygen in the water, causing the water body to lose its self-purification ability, causing environmental pollution and a large amount of energy waste. Therefore, a treatment method for silkworm cocoon degumming wastewater is needed. Contents of the invention [0003] In order to make up for the defects of the prior art, the purpose of the present invention is to provide a treatment method for silkworm cocoon degumming wastewater. ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/30
CPCC02F1/001C02F1/66C02F3/34C02F3/342C02F9/00C02F2103/30C02F2301/08
Inventor王洪喜
OwnerHEFEI JUFENG THROWING