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Deodorizing method for down feather sewage

A technology of sewage and down, which is applied in the field of down production and can solve the problems of easy odor of water and other problems

Inactive Publication Date: 2018-12-07
WUHU QIANKAI MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, a large amount of water needs to be used in the cleaning process of feathers, which leads to a large amount of sewage in the down production process, and the sewage contains a large amount of organic matter, which makes the water easily stink.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Conduct contact reaction of chitosan, water, silver salt (silver nitrate), reducing agent (urea) (reaction temperature is 150°C, reaction time is 10h) to obtain modified chitosan, chitosan, silver salt , The weight ratio of reducing agent to water is 50:5:9:130;

[0029] 2) In the presence of protective gas, mix acrylamide, cationic monomer DMC, modified chitosan and water for 50 minutes, and then add an initiator (potassium persulfate) for contact reaction (reaction temperature is 50°C, The reaction time is 8h), crushed to obtain deodorant A1 with an average particle size of 0.3 μm; wherein, the weight ratio of acrylamide, cationic monomer DMC, modified chitosan, initiator and water is 50:7:8 :5:130.

Embodiment 2

[0031] 1) Conduct contact reaction of chitosan, water, silver salt (silver carbonate), reducing agent (hydrazine hydrate) (reaction temperature is 140°C, reaction time is 12h) to obtain modified chitosan, chitosan, silver The weight ratio of salt, reducing agent and water is 50:4:8:100;

[0032] 2) In the presence of protective gas, mix acrylamide, cationic monomer DMC, modified chitosan and water for 40 minutes, then add an initiator (sodium persulfate) for contact reaction (reaction temperature is 45°C, The reaction time is 10h), crushed to obtain deodorant A2 with an average particle size of 0.2 μm; wherein, the weight ratio of acrylamide, cationic monomer DMC, modified chitosan, initiator and water is 50:5:6 :4:100.

Embodiment 3

[0034] 1) Conduct contact reaction of chitosan, water, silver salt (silver carbonate), reducing agent (urea and / or hydrazine hydrate) (reaction temperature is 160°C, reaction time is 8h) to obtain modified chitosan, shell The weight ratio of polysaccharide, silver salt, reducing agent and water is 50:6:10:150;

[0035] 2) In the presence of protective gas, mix acrylamide, cationic monomer DMC, modified chitosan and water for 60 minutes, then add an initiator (ammonium persulfate) for contact reaction (reaction temperature is 60°C, The reaction time is 6h), crushed to obtain deodorant A3 with an average particle size of 0.4 μm; wherein, the weight ratio of acrylamide, cationic monomer DMC, modified chitosan, initiator and water is 50:9:10 :6:150.

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PUM

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Abstract

The invention discloses a deodorizing method for down feather sewage. The method comprises the following steps: 1) carrying out a contact reaction on chiston, water, silver salt and a reducer to obtain modified chitosan; 2) in the presence of protective gas, mixing acrylamide, a acrylamide DMC, modified chitosan and water and adding an initiator for carrying out a contact reaction to obtain a deodorant; and 3) putting the deodorant into the down feather sewage for adsorption. The method can prevent the down feather sewage from being stinky efficiently.

Description

technical field [0001] The invention relates to the field of down production, in particular to a method for deodorizing down sewage. Background technique [0002] Down is the fluff that grows on the abdomen of geese and ducks, and is called feathers in flakes. Since down is a kind of animal protein fiber, there are tens of thousands of small triangular pores densely covered on the down ball-shaped fiber, which can shrink and expand with the change of temperature, and has the function of temperature adjustment, which can absorb the flowing hot air from the human body and isolate the invasion of cold air from the outside. . From the analysis of the bulkiness test, down is one level higher than silk, cotton and other thermal insulation materials. For example, the minimum standard of 450 degrees fluffy 90 duck down is also more fluffy than silk and cotton, so down is purely used as a thermal insulation material. The economic value is much higher than other thermal insulation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/50C02F1/28C02F103/22
CPCC02F1/00C02F1/285C02F1/286C02F1/50C02F2103/22C02F2303/02C02F2303/04
Inventor 李春生刘建国
Owner WUHU QIANKAI MATERIAL TECH CO LTD