Method for deep chemical treatment of papermaking wastewater sludge and use method

A technology of papermaking wastewater and deep chemistry, applied in papermaking, textile and papermaking, fiber raw material treatment, etc., can solve problems such as difficulty in sludge treatment, improve water filtration and dewatering capacity, increase fiber swelling and interweaving capacity, improve The effect of dehydration

Inactive Publication Date: 2022-02-25
德州泰鼎新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method and application method for deep chemical treatment of papermaking wastewater sludge, which has the advantages of improving slurry filtration and dehydration capabilities, and solves the problem of difficult sludge treatment

Method used

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  • Method for deep chemical treatment of papermaking wastewater sludge and use method

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Embodiment 1

[0030] A method for deep chemical treatment of papermaking wastewater sludge, comprising the following steps:

[0031] S1. The paper machine assembly line is followed by loose pulp, impurity removal, refined pulp, beating and additive mixing;

[0032] S2. The slurry after pulping and mixing is carried out to the stage of paper material flow;

[0033] S3. After the paper material flow is sent to the sludge reaction tank, water filter enzyme is added. The water filter enzyme is composed of cellulase, hemicellulase and pentose carbosidase. By using cellulase and hemicellulase Water filter enzyme made with pentose carbon sugar enzyme, which helps to peel off the cell wall;

[0034] S4, then carry out stirring and mixing reaction, the reaction temperature is 30 degrees Celsius, and the reaction time is 40 minutes;

[0035] S5. After the dewatering enzyme acts, the paper material enters the wire stage;

[0036] S6. Add flow aid and filter aid to react, the reaction temperature is...

Embodiment 2

[0044] A method for deep chemical treatment of papermaking wastewater sludge, comprising the following steps:

[0045] S1. The paper machine assembly line is followed by loose pulp, impurity removal, refined pulp, beating and additive mixing;

[0046] S2. The slurry after pulping and mixing is carried out to the stage of paper material flow;

[0047] S3. After the paper material flow is sent to the sludge reaction tank, water filter enzyme is added. The water filter enzyme is composed of cellulase, hemicellulase and pentose carbosidase. By using cellulase and hemicellulase Water filter enzyme made with pentose carbon sugar enzyme, which helps to peel off the cell wall;

[0048] S4, then carry out stirring and mixing reaction, the reaction temperature is 40 degrees Celsius, and the reaction time is 50 minutes;

[0049] S5. After the dewatering enzyme acts, the paper material enters the wire stage;

[0050] S6. Add flow aid and filter aid and react, the reaction temperature i...

Embodiment 3

[0058] A method for deep chemical treatment of papermaking wastewater sludge, comprising the following steps:

[0059] S1. The paper machine assembly line is followed by loose pulp, impurity removal, refined pulp, beating and additive mixing;

[0060] S2. The slurry after pulping and mixing is carried out to the stage of paper material flow;

[0061] S3. After the paper material flow is sent to the sludge reaction tank, water filter enzyme is added. The water filter enzyme is composed of cellulase, hemicellulase and pentose carbosidase. By using cellulase and hemicellulase Water filter enzyme made with pentose carbon sugar enzyme, which helps to peel off the cell wall;

[0062] S4, then carry out stirring and mixing reaction, the reaction temperature is 50 degrees Celsius, and the reaction time is 60 minutes;

[0063] S5. After the dewatering enzyme acts, the paper material enters the wire stage;

[0064]S6, adding flow aid and filter aid, reacting, the reaction temperature...

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Abstract

The invention discloses a method for deep chemical treatment of papermaking wastewater sludge and a use method thereof. The method comprises the following steps: sequentially carrying out pulp dispersing, impurity removal, pulp refining, pulping and additive mixing on a papermaking machine assembly line, carrying out a paper material flowing stage on the pulp subjected to pulping and mixing, feeding the paper material to a sludge reaction tank, adding water filtering enzyme, stirring, reacting at 30-60 DEG C for 40-70 minutes, after the action of the water filtering enzyme, feeding the paper material into a net part stage, adding a flow and filter aid, reacting at 30-60 DEG C for 10-25 seconds, finally allowing the product to sequentially pass through a pressing part, a drying part, surface sizing, the drying part and calendering and coiling into the paper. By adding the water filtering enzyme into the reaction tank, part of fine fibers and water-soluble colloid can be removed, and by degrading cellulose of fiber cell walls, stripping of the cell walls is facilitated, fiber swelling and interweaving capacity is improved, and water filtering and dewatering capacity is improved.

Description

technical field [0001] The invention relates to the technical field of papermaking sludge treatment, in particular to a method for advanced chemical treatment of papermaking wastewater sludge and a use method. Background technique [0002] A paper mill is a factory that makes paper in the form of a mechanical assembly line. There are two forms of papermaking: mechanism and manual. The mechanism is carried out continuously on the paper machine. The pulp suitable for paper quality is diluted with water to a certain concentration, and is initially dehydrated in the wire part of the paper machine to form a wet paper sheet, which is then dehydrated by pressing, and then dried into paper. By hand, a frame with bamboo screens, polyester nets or copper nets is used to copy the fibers dispersed and suspended in water into wet paper sheets, which are dehydrated by pressing, and then dried or dried into paper. [0003] The current discharge of sludge after papermaking is more trouble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/01D21H11/00D21H21/10D21H17/00
CPCD21H17/01D21H11/00D21H21/10D21H17/005
Inventor 王兴彦曹传宁张青超梁德涛
Owner 德州泰鼎新材料科技有限公司
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