CN103882754B - A kind for the treatment of process of paper pulp - Google Patents
A kind for the treatment of process of paper pulp Download PDFInfo
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- CN103882754B CN103882754B CN201410093515.0A CN201410093515A CN103882754B CN 103882754 B CN103882754 B CN 103882754B CN 201410093515 A CN201410093515 A CN 201410093515A CN 103882754 B CN103882754 B CN 103882754B
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- paper pulp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The present invention relates to a kind for the treatment of process of paper pulp, include following steps: handling microbiological treatment liquid; Reclaimed waste paper decontamination, rinsing and slightly starch processing technology; Microbiological treatment liquid is added in thick slurry, and evenly pass into air in thick slurry; The paper pulp meeting papermaking needs is milled to after adding the industrial hydrogen peroxide of corresponding proportion, deinking agent, alkali and water; Paper pulp is carried out post-processed and becomes paper pulp for subsequent use.Resolved into organic pollution to after production and the complete innocuous substance of environment by the technical program, undertaken and the fiber separation in paper pulp by later stage operation, the pulp quality finally obtained is significantly improved.
Description
Technical field
The invention belongs to pulp technology for making paper, specifically refer to a kind of method of pulp processing in paper-making process.
Background technology
Present stage, the pulping process of paper-making process comprised two kinds of modes substantially, and a kind of is slurrying when being raw material by vegetation or timber, another kind of for being the slurrying of raw material by reclaimed waste paper.This pulping process of two kinds has included raw material selection, boiling defibre, washing, bleaching, washing and screening, has concentrated or be copied into lodicule and the operation that stores for future use.The difference of first two mode only in the difference of raw material, and when using reclaimed waste paper to carry out slurrying, being waste paper and industrial hydrogen peroxide, deinking agent, alkali, water are prepared by a certain percentage, through shredded paper pulping, then carrying out the finishing operations such as boiling separation.
Carry out in pulping process at use reclaimed waste paper, substantially be remove by chemical addition agent the organic pollution materials comprised in waste paper, such as adhesive, glue, hot melt, coating, coating adhesive, ink residue, deinking chemical agent etc., the existence of these materials not only affects postorder process, and affects the quality of final paper.Contain organic pollution materials in the paper pulp of reclaimed waste paper, the quality of recycled writing paper cannot be improved.
In order to overcome the organic pollution in reclaimed waste paper paper pulp, China's number of patent application is 01811021.5, denomination of invention is that the patent of the method controlling organic pollution materials in fiber adopts the composition adding at least one esterase in paper pulp to process the organic pollution in fiber, utilizes the catalytic action of enzyme to carry out decomposing organic pollutant.This technical scheme, compared with the chemicals of former use, more can remove the organic pollution in fiber.But this technical scheme still has weak point, although be exactly mainly be embodied in the composition using at least one enzyme, but the unicity of the catalytic performance of enzyme is unavoidable problem, and the too much of the kind of the composition of enzyme increase can increase production cost.And enzyme is carrying out in catalytic process, only be the increase in reaction speed, the high polymer long chain of organic pollution is become Small molecular short chain, and the total amount of these organic pollutions does not change, only be reduction of impact, to the organic pollution in fiber and when post-processed the organic content of waste water do not change.Still exist the impact of environment.
Summary of the invention
The object of the invention is for the organic pollution problem in the pulp treatment process of existing reclaimed waste paper and the problem of environmental pollution in the wastewater treatment process in later stage, the technical program is proposed, pass through the technical program, the organic pollution in paper pulp can not only be effectively reduced, and reduce the content of pollutant in process later stage waste water water body, reduce the impact on environment.
The present invention is achieved by the following technical solutions:
A kind for the treatment of process of paper pulp, includes following steps:
1) handling microbiological treatment liquid;
2) reclaimed waste paper decontamination, rinsing and slightly starch processing technology;
3) microbiological treatment liquid is joined step 2) in processing after thick slurry in, and evenly pass into air 4-36 hour in thick slurry;
4) paper pulp meeting papermaking needs is milled to add the industrial hydrogen peroxide of corresponding proportion, deinking agent, alkali and water in step 3) after;
5) paper pulp is carried out post-processed and become paper pulp for subsequent use.
The process of described handling microbiological treatment liquid is, 1) screened stock solution is once polished into after reclaimed waste paper being carried out decontamination, rinsing, the screened stock solution obtained is placed in 36-72 hour in open-top receptacle at 25 DEG C-35 DEG C, then in container, pass into 0.5-1 h air at interval of 8 hours, the air passed into is as the criterion not make screened stock solution produce boiling; The air number of times passed into is not less than 10 times;
2) solution of step 1) and water being not less than by volume the temperature maintaining mixed liquor after 20:1 does not mix higher than the ratio of 50:1 is 25 DEG C-35 DEG C, continue to pass into air in mixed solution, and every within 24 hours, adding a certain proportion of phosphorus and step poly-1 in mixed liquor) in the screened stock solution of new polishing; Maintain after this process is not less than 15 days, the solution obtained after being precipitated by mixed liquor pass into excess air 48-72 hour in mixed liquor after is microbiological treatment liquid.
Described microbiological treatment liquid and the volume ratio 1:5-25 slightly starched.
The Best Times evenly passing into air in thick slurry is 16-24 hour.
The operation that described paper pulp carries out post-processed and becomes paper pulp for subsequent use includes, boiling defibre, washing, bleaching, washing and screening, concentrated or be copied into lodicule and the operation that stores for future use.
The invention has the beneficial effects as follows:
Pass through the technical program, organic pollution in reclaimed waste paper consumes as food by the microorganism being beneficial to handling, and then organic pollution can be resolved into after production and the complete innocuous substance of environment, undertaken and the fiber separation in paper pulp by later stage operation, the pulp quality finally obtained is significantly improved.
Detailed description of the invention
Describe technical scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
In the technical program, the waste paper of recovery can be multiple paper product or fibre-bearing product, corrugated case as usual, old newsprint, wastepaper, hybrid packed paper or its mixture; Or the waste paper carrying out classification separately as required all can be applicable to the technical program.
The technical program is only the improvement carried out the processing procedure of slurrying and paper pulp, and other operation for papermaking is not improved, and is prior art, is not explained in this.
The process of handling microbiological treatment liquid is, 1) screened stock solution is once polished into after reclaimed waste paper being carried out decontamination, rinsing, in this step, in order to improve the treatment effect in later stage, the reclaimed waste paper of multiple types of trying one's best can be polished together, also can according to the polishing specifically needing the reclaimed waste paper carrying out single kind.The screened stock solution obtained is placed in 36-72 hour in open-top receptacle at 25 DEG C-35 DEG C, Best Times is the generation ensureing anaerobe in screened stock solution herein in 60-72 hour, then in container, pass into 0.5-1 h air at interval of 8 hours, the air passed into is as the criterion not make screened stock solution produce boiling; The air number of times passed into is not less than 10 times, and object herein promotes to have the generation that anaerobism also has the microorganism of aerobic ability simultaneously, promotes the generation of desulfuration, nitrogen microorganism simultaneously.
2) solution of step 1) and water being not less than by volume the temperature maintaining mixed liquor after 20:1 does not mix higher than the ratio of 50:1 is 25 DEG C-35 DEG C, the best is 28 DEG C-32 DEG C, continue to pass into air in mixed solution, and every within 24 hours, adding a certain proportion of phosphorus and step poly-1 in mixed liquor) in the screened stock solution of new polishing, the nutrition maintaining microorganism normal growth breeding needs herein, the concrete amount of phosphorating needs to determine according to analysis data, determination herein refers to the selection of an approximate range, do not phosphorate in whole process passable yet, the amount added is many also passable, but the phosphorus content that can affect when addition is many in post-processed and waste water, therefore just analysis data is used.Maintain after this process is not less than 15 days, the solution obtained after being precipitated by mixed liquor pass into excess air 48-72 hour in mixed liquor after is microbiological treatment liquid, object herein the microorganism cenobium in solution is decomposed to enter in solution, is beneficial to the process in later stage.
The processing procedure of paper pulp is:
By reclaimed waste paper decontamination, rinsing and slightly starch processing technology;
Joined in the thick slurry after processing by microbiological treatment liquid good for handling, temperature maintains 25 DEG C-35 DEG C, and evenly passes into air 4-36 hour in thick slurry, and Best Times is 16-24 hour; Microbiological treatment liquid and the volume ratio 1:5-25 slightly starched; In processing procedure, treatment effect was directly proportional to the time passing into air, proportional with the consumption of microbiological treatment liquid.
The paper pulp meeting papermaking needs is milled to add the industrial hydrogen peroxide of corresponding proportion, deinking agent, alkali and water in the thick slurry passing into 4-36 hour after;
Paper pulp is carried out boiling defibre, washing, bleaching, washing and screening, concentrate or be copied into lodicule and the operation that stores for future use.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (4)
1. a treatment process of paper pulp, is characterized in that: include following steps:
1) handling microbiological treatment liquid;
2) reclaimed waste paper decontamination, rinsing and slightly starch processing technology;
3) microbiological treatment liquid is joined step 2) in processing after thick slurry in, and evenly pass into air 4-36 hour in thick slurry;
4) to step 3) in add the industrial hydrogen peroxide of corresponding proportion, deinking agent, alkali and water after be milled to the paper pulp meeting papermaking needs;
5) paper pulp is carried out post-processed and become paper pulp for subsequent use;
The process of described handling microbiological treatment liquid is, 1) screened stock solution is once polished into after reclaimed waste paper being carried out decontamination, rinsing, the screened stock solution obtained is placed in 36-72 hour in open-top receptacle at 25 DEG C-35 DEG C, then in container, pass into 0.5-1 h air at interval of 8 hours, the air passed into is as the criterion not make screened stock solution produce boiling; The air number of times passed into is not less than 10 times;
2) by step 1) solution and water to be not less than the temperature maintaining mixed liquor after 20:1 does not mix higher than the ratio of 50:1 be by volume 25 DEG C-35 DEG C, continue to pass into air in mixed solution, and every within 24 hours, adding the phosphorus and step poly-1 that carry out determining according to analysis data in mixed liquor) in the screened stock solution of new polishing; Maintain after this process is not less than 15 days, the solution obtained after being precipitated by mixed liquor pass into excess air 48-72 hour in mixed liquor after is microbiological treatment liquid.
2. treatment process of paper pulp according to claim 1, is characterized in that: described microbiological treatment liquid and the volume ratio 1:5-25 slightly starched.
3. treatment process of paper pulp according to claim 1, is characterized in that: the Best Times evenly passing into air in thick slurry is 16-24 hour.
4. treatment process of paper pulp according to claim 1, is characterized in that: the operation that described paper pulp carries out post-processed and becomes paper pulp for subsequent use includes, boiling defibre, washing, bleaching, washing and screening, concentrated or be copied into lodicule and the operation that stores for future use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093515.0A CN103882754B (en) | 2014-03-13 | 2014-03-13 | A kind for the treatment of process of paper pulp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410093515.0A CN103882754B (en) | 2014-03-13 | 2014-03-13 | A kind for the treatment of process of paper pulp |
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| Publication Number | Publication Date |
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| CN103882754A CN103882754A (en) | 2014-06-25 |
| CN103882754B true CN103882754B (en) | 2016-01-27 |
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| CN201410093515.0A Expired - Fee Related CN103882754B (en) | 2014-03-13 | 2014-03-13 | A kind for the treatment of process of paper pulp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107881825B (en) * | 2017-11-17 | 2019-10-18 | 苏州博进生物技术有限公司 | The microbial treatment method of scrap based on fireworks firecracker firing generation rubbish |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763305A (en) * | 2005-11-18 | 2006-04-26 | 山东轻工业学院 | Enzymatic deinking method for waste newspaper |
| CN102575423A (en) * | 2009-10-26 | 2012-07-11 | 巴斯夫欧洲公司 | Method for recycling paper products glued and/or coated with biodegradable polymers |
| CN102605662A (en) * | 2012-04-17 | 2012-07-25 | 浙江景兴纸业股份有限公司 | Waste paper deinking method |
| CN103348013A (en) * | 2010-12-22 | 2013-10-09 | 耐思特石油公司 | Integrated process system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930003705B1 (en) * | 1989-12-29 | 1993-05-08 | 전주제지 주식회사 | Degreasing method of old paper |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763305A (en) * | 2005-11-18 | 2006-04-26 | 山东轻工业学院 | Enzymatic deinking method for waste newspaper |
| CN102575423A (en) * | 2009-10-26 | 2012-07-11 | 巴斯夫欧洲公司 | Method for recycling paper products glued and/or coated with biodegradable polymers |
| CN103348013A (en) * | 2010-12-22 | 2013-10-09 | 耐思特石油公司 | Integrated process system |
| CN102605662A (en) * | 2012-04-17 | 2012-07-25 | 浙江景兴纸业股份有限公司 | Waste paper deinking method |
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| CN103882754A (en) | 2014-06-25 |
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Effective date of registration: 20180502 Address after: 315191 No. 1002 Ming Shu Road, Yinzhou Industrial Park, Ningbo, Zhejiang. Patentee after: Ningbo Japan and new materials Co., Ltd. Address before: 315000 Chen Cun, Yunlong Town, Yinzhou District, Ningbo, Zhejiang Patentee before: Ningbo Liuhe Packaging Co., Ltd. |
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