CN102817278B - Method for papermaking by coating wastewater - Google Patents
Method for papermaking by coating wastewater Download PDFInfo
- Publication number
- CN102817278B CN102817278B CN201110153648.9A CN201110153648A CN102817278B CN 102817278 B CN102817278 B CN 102817278B CN 201110153648 A CN201110153648 A CN 201110153648A CN 102817278 B CN102817278 B CN 102817278B
- Authority
- CN
- China
- Prior art keywords
- carry out
- water
- papermaking
- filtrate
- coating waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A method for papermaking by paint wastewater includes a step of collecting and filtering coating wastewater to obtain filtrate containing solid content. The solid content comprises latex, starch and pigment. The filtrate and filling are added to flocculation modifier after being mixed to promote the filling, the starch, the pigment and the latex to flocculate, and accordingly recycling liquid is obtained. In addition, the recycling liquid is mixed with pulp for papermaking.
Description
Technical field
The present invention relates to the processing method of paper waste, particularly a kind of method utilizing the coating waste-water produced in papermaking to carry out papermaking.
Background technology
Along with industrial expansion, the discharge capacity of water for industrial use and waste water is also increasing.A large amount of chemical substances in the waste water of discharge bring serious pollution to environment, destroy the ecological balance, also cause great harm to the life of people and the growth of plant.Especially, in paper technology, carry out paper kind and change painting, switching, when shutting down, needing the coating to residuing in the pipeline of coating machine and groove bucket to clean, so, producing a large amount of waste water containing coating, hereinafter referred to as coating waste-water.
Coating waste-water can not directly discharge, and a kind of common method processing this coating waste-water is separated by solid content wherein, calcines or bury process, remaining liquid qualified discharge for power plant.Although the pollution that this processing method can avoid direct waste discharge to bring rivers and lakes, still can be dispersed into pollutant atmosphere in air through the solid content of calcination processing, the solid content of burying process more easily causes soil compaction.This processing method not only processing cost is high, and the making full use of of the paint ingredient that can not realize in coating waste-water or water, and causes the serious wasting of resources.Generally speaking, this processing method is unfavorable for reducing production cost, is also unfavorable for protection of the environment.
Summary of the invention
Therefore, be necessary to provide a kind of cost low, the eco-friendly method utilizing coating waste-water to carry out papermaking.
Utilize coating waste-water to carry out a method for papermaking, comprise step: collect and filter coating material waste water, obtain filtrate, described filtrate is contained admittedly containing thing, and the described thing that admittedly contains comprises latex, starch and pigment; Described filtrate is mixed with filler and adds the modifier that flocculates and carry out modification, to promote that filler, starch, pigment and flocculating latex are assembled, thus form reuse liquid; And described reuse liquid mixed with paper pulp and manufactures paper with pulp, wherein said flocculation modifier is amphoteric macromolecule polymer, and the molecular weight of described amphoteric macromolecule polymer is 300 ten thousand to 500 ten thousand.
Coating waste-water reclaims and is used for manufacturing paper with pulp of paper by the method utilizing coating waste-water to carry out papermaking provided by the invention, greatly can save the thinned water amount of paper making wet part.Latex in coating waste-water etc. are solid to be reused containing being combined with paper pulp, can promote the intensity of gained paper further.
Accompanying drawing explanation
Fig. 1 flow chart utilizing coating waste-water to carry out the method for papermaking provided by the invention.
Detailed description of the invention
Below with reference to drawings and Examples, the method utilizing coating waste-water to carry out papermaking provided by the invention is elaborated.
The first step, collects and filter coating material waste water, obtains filtrate, and described filtrate is contained admittedly containing thing, and the described thing that admittedly contains comprises latex, starch and pigment.
Described coating waste-water is embodied as the waste water produced in the cleaning process from coating machine.The described thing that admittedly contains also may comprise additive.
Certainly, described coating waste-water also can be other waste water from producing in the processes such as coating material production, storage, conveying, coating.
Particularly, filter described coating waste-water and comprise and first sieve deimpurity step further with pressurized screen again with the Vibration Screen removal of impurity, wherein, vibrating screen mainly can screen out the impurity of Large stone, as hard foreign matter etc.
In the filtrate obtained, solid content is 3% to 15%.In the present embodiment, in filtrate, solid content is about 5%.Described admittedly containing in thing, the mass content of latex is 4% to 7%, and the mass content of starch is 2% to 5%, and the mass content of pigment is 70% to 80%, and the mass content of additive is 6% to 10%.
Certainly, after obtaining filtrate, bactericide can also be added in described filtrate, to carry out sterilization processing to described filtrate.Adopt reduced form bactericide or oxidative bactericide.In the present embodiment, adopt hypochlorous acid series bactericidal agent.
In addition, defoamer can also be added in described filtrate, to carry out defoaming treatment to described filtrate.In the present embodiment, adopt the defoamer that BASF AG provides.
Be appreciated that the sequencing of above-mentioned sterilization processing and defoaming treatment and unrestrictedly, also disposablely can add above-mentioned two kinds of reagent in filtrate, carry out sterilization processing and defoaming treatment simultaneously.
Second step, mixes described filtrate with filler and adds the modifier that flocculates and carry out modification, to promote that filler, starch, pigment and flocculating latex are assembled, thus forms reuse liquid.
In the present embodiment, described filler is the solution that calcium carbonate mass content is about 19%.After filtrate mixing, calcium carbonate mass content is about 15%.
Described flocculation modifier can be molecular weight at the amphoteric macromolecule polymer of 300 ten thousand to 500 ten thousand, specifically can be embodied as polyacrylamide derivative.The consumption of described flocculation modifier is 1 kilogram per tonne oven dry stock to 6 kilogram per tonne oven dry stock.In the present embodiment, the consumption of flocculation modifier is 2 kilogram per tonne oven dry stocks.
When utilizing described flocculation modifier to carry out modification to described filler and filtrate, it is electrical that flocculation modifier gives filler, starch, pigment and latex, impels filler, starch, pigment and flocculating latex to assemble.Because the particle of latex is less, the particle of filler, starch and pigment is comparatively large, and after flocculation is assembled, filler, starch and pigment are coated on around latex.
3rd step, mixes described reuse liquid with paper pulp and manufactures paper with pulp.
Described reuse liquid and the mixing of paper pulp are carried out the process of manufacturing paper with pulp and general paper making process roughly the same.By before the mixing and manufacture paper with pulp of described reuse liquid and paper pulp, slurry also can experience the wet end process steps such as defibrination.Because when manufacturing paper with pulp, except filler can be combined by fiber in slurrying, the latex in reuse liquid, starch and pigment also can be combined by the fiber in paper pulp, can promote the intensity of gained paper further.
Coating waste-water reclaims and is used for manufacturing paper with pulp of paper by the present invention, greatly can save the thinned water amount of paper making wet part.Latex in coating waste-water etc. are solid to be reused containing being combined with paper pulp, can promote the intensity of gained paper further.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. utilize coating waste-water to carry out a method for papermaking, comprise step:
Collect and filter coating material waste water, obtain filtrate, described filtrate is contained admittedly containing thing, and the described thing that admittedly contains comprises latex, starch and pigment;
Described filtrate is mixed with filler and adds the modifier that flocculates and carry out modification, to promote that filler, starch, pigment and flocculating latex are assembled, thus form reuse liquid; And
Described reuse liquid is mixed with paper pulp and manufactures paper with pulp,
Wherein said flocculation modifier is amphoteric macromolecule polymer, and the molecular weight of described amphoteric macromolecule polymer is 300 ten thousand to 500 ten thousand.
2. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, the solid content of gained filtrate is 3% to 15%.
3. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, the solid content of gained filtrate is 5%.
4. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, filter described coating waste-water and comprise and first sieve deimpurity step further with pressurized screen again with the Vibration Screen removal of impurity.
5. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, after obtaining filtrate, carry out modification before, also in described filtrate, add bactericide, to carry out sterilization processing to described filtrate.
6. utilize coating waste-water to carry out the method for papermaking as claimed in claim 5, it is characterized in that, described bactericide is hypochlorous acid series bactericidal agent.
7. utilize coating waste-water to carry out the method for papermaking as claimed in claim 5, it is characterized in that, after obtaining filtrate, carry out modification before, also in described filtrate, add defoamer, to carry out defoaming treatment to described filtrate.
8. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, the consumption of described flocculation modifier is 1 kilogram per tonne oven dry stock to 6 kilogram per tonne oven dry stock.
9. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, the consumption of described flocculation modifier is 2 kilogram per tonne oven dry stocks.
10. utilize coating waste-water to carry out the method for papermaking as claimed in claim 1, it is characterized in that, described flocculation modifier is polyacrylamide derivative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110153648.9A CN102817278B (en) | 2011-06-09 | 2011-06-09 | Method for papermaking by coating wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110153648.9A CN102817278B (en) | 2011-06-09 | 2011-06-09 | Method for papermaking by coating wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102817278A CN102817278A (en) | 2012-12-12 |
| CN102817278B true CN102817278B (en) | 2014-12-24 |
Family
ID=47301695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110153648.9A Expired - Fee Related CN102817278B (en) | 2011-06-09 | 2011-06-09 | Method for papermaking by coating wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817278B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230036B (en) * | 2013-06-11 | 2016-12-28 | 金东纸业（江苏）股份有限公司 | The recycling technique of coating waste-water |
| CN103343480B (en) * | 2013-07-02 | 2016-06-01 | 金东纸业（江苏）股份有限公司 | Modified filler and its preparation method, apply its paper technology and paper |
| CN104074094B (en) * | 2014-06-18 | 2016-04-13 | 东莞玖龙纸业有限公司 | Coating waste-water recovery process and system |
| CN105735024B (en) * | 2016-02-22 | 2018-01-09 | 金东纸业（江苏）股份有限公司 | The processing method of coating waste-water and coated broke |
| CN107445220B (en) * | 2017-08-22 | 2020-10-02 | 山东华泰纸业股份有限公司 | Application of coated paper coating wastewater |
| CN112374633A (en) * | 2020-09-08 | 2021-02-19 | 金东纸业（江苏）股份有限公司 | Method and system for recycling coating wastewater |
| CN114890573B (en) * | 2022-04-25 | 2023-10-24 | 维苏威铸造科技(江苏)有限公司 | Environment-friendly recycling process for casting coating cleaning waste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146515A (en) * | 1995-09-27 | 1997-04-02 | 徐功明 | Non drainage quality-stabilizing regulating agent for paper-making and application thereof |
| CN100410192C (en) * | 2006-09-11 | 2008-08-13 | 金东纸业（江苏）股份有限公司 | Method for circulation utilizing coating waste-water |
| CN101367589A (en) * | 2008-08-29 | 2009-02-18 | 北京盖雅技术中心有限公司 | Reutilization process for painting and coating pigment pf paper mill |
-
2011
- 2011-06-09 CN CN201110153648.9A patent/CN102817278B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146515A (en) * | 1995-09-27 | 1997-04-02 | 徐功明 | Non drainage quality-stabilizing regulating agent for paper-making and application thereof |
| CN100410192C (en) * | 2006-09-11 | 2008-08-13 | 金东纸业（江苏）股份有限公司 | Method for circulation utilizing coating waste-water |
| CN101367589A (en) * | 2008-08-29 | 2009-02-18 | 北京盖雅技术中心有限公司 | Reutilization process for painting and coating pigment pf paper mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102817278A (en) | 2012-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102817278B (en) | Method for papermaking by coating wastewater | |
| CN106283809B (en) | A kind of OCC lines slurry high efficiente callback production method | |
| CN103864266A (en) | Waste-paper papermaking wastewater and sludge recycling method | |
| CN101775750B (en) | A clear pulp production process for realizing complete comprehensive utilization and removing three wastes | |
| CN104843955A (en) | Oil and gas field drilling mud waste while-drilling processing system and processing method thereof | |
| CN201433144Y (en) | Desulfurization waste water treatment recycling device | |
| CN110339608A (en) | A kind of high-efficiency environment friendly coal mine sewage disposal device | |
| CN104829070A (en) | Oil and gas field drilling fluid waste treatment-while-drilling system | |
| CN105948425B (en) | Papermaking wastewater treatment system | |
| Mendonça et al. | Solving urban water microplastics with bacterial cellulose hydrogels: leveraging predictive computational models | |
| JP2018167191A (en) | Sludge dehydrating agent | |
| CN102502992A (en) | Method for treating wastewater produced in process for making paper by using secondary fibers | |
| CN204079711U (en) | A kind of regeneration paper mill wastewater recycling and processing device | |
| CN108503082A (en) | A kind of oil-containing sewage treatment technique | |
| CN107032568B (en) | Municipal sludge deodorization decrement processing system | |
| CN106186606B (en) | Modification and reuse production method for floatation filter-pressed sludge of white manila board | |
| CN203545796U (en) | Paint wastewater recovery device | |
| CN204644081U (en) | A kind of oilfield drilling mud waste is with brill treatment system | |
| CN206768487U (en) | A kind of paper machine white water processing system | |
| CN204588959U (en) | Paper mill sludge recycling system | |
| CN105217753B (en) | A kind of plain boiled water flocculant for treating and its application method | |
| CN206345766U (en) | A kind of paper mill sludge backfills equipment | |
| CN108455749B (en) | Sewage treatment equipment for containing solids | |
| CN207294435U (en) | Advanced oxidation bi-membrane method wastewater reusing device | |
| CN104445801A (en) | Papermaking wastewater treatment process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20200609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |