CN107881843A - The manufacture craft of cardboard is made using paper mill sludge - Google Patents
The manufacture craft of cardboard is made using paper mill sludge Download PDFInfo
- Publication number
- CN107881843A CN107881843A CN201710972105.7A CN201710972105A CN107881843A CN 107881843 A CN107881843 A CN 107881843A CN 201710972105 A CN201710972105 A CN 201710972105A CN 107881843 A CN107881843 A CN 107881843A
- Authority
- CN
- China
- Prior art keywords
- sludge
- paper mill
- mill sludge
- cardboard
- operation method
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 146
- 239000000123 paper Substances 0.000 title claims abstract description 98
- 239000011111 cardboard Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000004332 deodorization Methods 0.000 claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000002781 deodorant agent Substances 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 11
- 238000006297 dehydration reaction Methods 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229920000768 polyamine Polymers 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000011087 paperboard Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 239000012286 potassium permanganate Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 229920003656 Daiamid® Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- SNMVRZFUUCLYTO-UHFFFAOYSA-N n-propyl chloride Chemical compound CCCCl SNMVRZFUUCLYTO-UHFFFAOYSA-N 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/01—Waste products, e.g. sludge
Landscapes
- Treatment Of Sludge (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；(6) squeezing drying；Wherein, the concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered in sedimentation basin, 3 5% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is under 250 300r/min, stirs 120s 150s；Then 5 10% PAMC for accounting for paper mill sludge oven dry weight is added in paper mill sludge again, carries out sludge gravity concentration, the present invention prepares cardboard by raw material of paper mill sludge, solves the problems, such as paper mill sludge secondary pollution.
Description
Technical field
The present invention relates to a kind of manufacture craft that cardboard is made using paper mill sludge.
Background technology
The sludge quantity of pulping wastewater treatment is big, usually the 5~10 of same size municipal sewage plant times.According to investigations,
Sludge quantity caused by the annual enterprises in pulp and paper industry in China is about 5,000,000 tons.At present, the processing method of paper mill sludge is mostly using dirt
Buried after mud dewaterer is de- dry, such a processing method dewatering efficiency is low, it is costly, waste land resource and be also easy to produce secondary dirt
Dye.
The content of the invention
It is an object of the invention to provide a kind of technique is simple, the high system that cardboard is made using paper mill sludge of production efficiency
Make technique.
The purpose of the present invention is achieved through the following technical solutions：A kind of manufacture craft that cardboard is made using paper mill sludge,
It is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (2) is：It is heavy that paper mill sludge after step (1) deodorizing process is delivered to
In the pond of shallow lake, the cetyl trimethylammonium bromide for the 3-5% for accounting for paper mill sludge oven dry weight is added into paper mill sludge, is being stirred
Speed is under 250-300r/min, stirs 120s-150s；Then added again in paper mill sludge and account for paper mill sludge oven dry weight
5-10% PAMC, low whipping speed are under 250-300r/min, continue to stir 120s-150s, then stand
24-48h carries out sludge gravity concentration.
For prior art, the advantage of the invention is that：The present invention prepares cardboard by raw material of paper mill sludge, to making
Paper sludge carries out recycling, thoroughly solves the problems, such as paper mill sludge secondary pollution, has saved land resource；In addition, this
The operating procedure of invention is simple, and production cost is low and paper board strength produced by the present invention is high, good toughness.Inventive step (2) energy
Paper mill sludge is quickly reunited flocculation, accelerate the sinking speed of paper mill sludge, while beneficial to the dehydration of paper mill sludge, allow step
(5) the cardboard moisture content obtained is low, reduces the energy that baking needed is squeezed for step (6).
Embodiment
Present invention is described in detail with reference to embodiment：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 30-40min, the addition of deodorant is 15-20mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, into paper mill sludge add account for paper mill sludge oven dry weight 3-5% cetyl trimethylammonium bromide, low whipping speed
Under 250-300r/min, to stir 120s-150s；Then the 5- for accounting for paper mill sludge oven dry weight is added in paper mill sludge again
10% PAMC, low whipping speed are under 250-300r/min, continue to stir 120s-150s, then stand 24-
48h carries out sludge gravity concentration.
Step (2) of the present invention makes paper mill sludge quick using cetyl trimethylammonium bromide and PAMC
Sedimentation, the efficiency of gravity concentration is improved, while beneficial to the dehydration of paper mill sludge, the substantial amounts of energy has been saved for subsequent operation.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 180-200r/min that water and low whipping speed are added in mud storage pool, stirs 60s-80s, it is 10- to reconcile into solid content
15% sludge suspension liquid；Afterwards, the cotton linter for the 15-20% for accounting for paper mill sludge oven dry weight is added, low whipping speed is
Under 180-200r/min, 80s-100s is stirred；And then add the daiamid epoxy for the 5-8% for accounting for paper mill sludge oven dry weight
Chloropropane resin, then low whipping speed are under 180-200r/min, and stirring 80s-100s obtains slurry；Wherein, daiamid epoxy chlorine
The solid content of propane resin is 10-15%.
In order to improve the toughness of cardboard and intensity, improve the adhesive fastness of paper mill sludge, the present invention adds in paper mill sludge
Enter cotton linter and polyamine epichlorohydrin resin carries out reinforcement.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 40%-50% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 0.8-
High pressure shape under 1.0Mpa pressure, high temperature dries 10-15 minutes at a temperature of 95-100 DEG C.
Embodiment one：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 30min, the addition of deodorant is 20mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 3% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 300r/min, 120s is stirred；Then add again in paper mill sludge and account for 10% cation of paper mill sludge oven dry weight and gather
Acrylamide, low whipping speed are under 250r/min, continue to stir 150s, then stand 24h and carry out sludge gravity concentration.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 180r/min that water and low whipping speed are added in mud storage pool, stirs 80s, reconciles into the sludge suspension that solid content is 10%
Liquid；Afterwards, 20% cotton linter for accounting for paper mill sludge oven dry weight is added, low whipping speed is under 180r/min, stirs 100s；
And then 5% polyamine epichlorohydrin resin for accounting for paper mill sludge oven dry weight is added, then low whipping speed is 200r/
Under min, stirring 80s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 15%.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 40% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 0.8Mpa
Pressure under high pressure shape, at a temperature of 100 DEG C high temperature dry 10 minutes.
Embodiment two：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 40min, the addition of deodorant is 15mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 5% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 250r/min, 150s is stirred；Then 5% cation poly- third for accounting for paper mill sludge oven dry weight is added in paper mill sludge again
Acrylamide, low whipping speed are under 300r/min, continue to stir 120s, then stand 48h and carry out sludge gravity concentration.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 200r/min that water and low whipping speed are added in mud storage pool, stirs 60s, reconciles into the sludge suspension that solid content is 15%
Liquid；Afterwards, 15% cotton linter for accounting for paper mill sludge oven dry weight is added, low whipping speed is under 200r/min, stirs 80s；
And then 8% polyamine epichlorohydrin resin for accounting for paper mill sludge oven dry weight is added, then low whipping speed is 180r/
Under min, stirring 100s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 10%.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 50% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 1.0Mpa
Pressure under high pressure shape, at a temperature of 95 DEG C high temperature dry 15 minutes.
Embodiment three：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 35min, the addition of deodorant is 18mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 4% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 280r/min, 130s is stirred；Then 8% cation poly- third for accounting for paper mill sludge oven dry weight is added in paper mill sludge again
Acrylamide, low whipping speed are under 280r/min, continue to stir 130s, then stand 36h and carry out sludge gravity concentration.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 190r/min that water and low whipping speed are added in mud storage pool, stirs 70s, reconciles into the sludge suspension that solid content is 12%
Liquid；Afterwards, 18% cotton linter for accounting for paper mill sludge oven dry weight is added, low whipping speed is under 190r/min, stirs 90s；
And then 6% polyamine epichlorohydrin resin for accounting for paper mill sludge oven dry weight is added, then low whipping speed is 190r/
Under min, stirring 90s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 12%.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 45% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 1.0Mpa
Pressure under high pressure shape, at a temperature of 98 DEG C high temperature dry 12 minutes.
Claims (7)
- A kind of 1. manufacture craft that cardboard is made using paper mill sludge, it is characterised in that：It is comprised the following steps that：(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；(6) press Squeeze drying；Wherein, the concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin In, into paper mill sludge add account for paper mill sludge oven dry weight 3-5% cetyl trimethylammonium bromide, low whipping speed Under 250-300r/min, to stir 120s-150s；Then the 5- for accounting for paper mill sludge oven dry weight is added in paper mill sludge again 10% PAMC, low whipping speed are under 250-300r/min, continue to stir 120s-150s, then stand 24- 48h carries out sludge gravity concentration.
- 2. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (1) Concrete operation method is：The sludge of the sludge of paper mill preliminary sedimentation tank and second pond Jing Guo biochemical treatment is first well mixed, connect The addition deodorant in the paper mill sludge mixed and carry out oxidation deodorization；Wherein oxidization time control is in 30-40min, deodorization The addition of agent is 15-20mg/L.
- 3. the manufacture craft according to claim 2 that cardboard is made using paper mill sludge, it is characterised in that：The deodorant For the mixture of the one or both in hydrogen peroxide, potassium permanganate.
- 4. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (3) Concrete operation method is：Paper mill sludge after concentration is dehydrated using belt type sludge filter press.
- 5. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (4) Concrete operation method is：Will be through in the sludge input sludge storage pool after step (3) dehydration, water be added simultaneously in sludge storage pool Low whipping speed is under 180-200r/min, stirs 60s-80s, reconciles into the sludge suspension liquid that solid content is 10-15%；It Afterwards, the cotton linter for the 15-20% for accounting for paper mill sludge oven dry weight is added, low whipping speed is stirring under 180-200r/min 80s-100s；And then the polyamine epichlorohydrin resin for the 5-8% for accounting for paper mill sludge oven dry weight is added, then stirring Speed is under 180-200r/min, and stirring 80s-100s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 10-15%.
- 6. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (5) Concrete operation method is：Slurry made from step (4) is transported in paperboard forming device and is molded, obtained moisture content is 40%-50% aqueous cardboard.
- 7. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (6) Concrete operation method is：Aqueous cardboard made from (5) is moved into squeezing dryer, high pressure is determined under 0.8-1.0Mpa pressure Type, high temperature dries 10-15 minutes at a temperature of 95-100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972105.7A CN107881843A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of cardboard is made using paper mill sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972105.7A CN107881843A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of cardboard is made using paper mill sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107881843A true CN107881843A (en) | 2018-04-06 |
Family
ID=61781803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710972105.7A Pending CN107881843A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of cardboard is made using paper mill sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107881843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145459A (en) * | 2023-02-24 | 2023-05-23 | 湖南康业生物科技有限公司 | Papermaking method by utilizing recycled sludge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784722A (en) * | 2007-06-28 | 2010-07-21 | 巴科曼实验室国际公司 | Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products |
| CN102452785A (en) * | 2011-12-19 | 2012-05-16 | 陕西科技大学 | Efficient dehydration method for papermaking sludge |
| CN102493287A (en) * | 2011-12-08 | 2012-06-13 | 南京博方生物科技有限公司 | Method for producing plate by fiber-containing sludge and application thereof |
| CN103711041A (en) * | 2014-01-13 | 2014-04-09 | 河北嘉诚环境工程有限公司 | Method for producing hard fiberboard through paper mill sludge |
| CN106927654A (en) * | 2015-12-29 | 2017-07-07 | 浙江鑫丰特种纸业股份有限公司 | A kind of paper mill sludge resource utilization system and its method |
-
2017
- 2017-10-18 CN CN201710972105.7A patent/CN107881843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784722A (en) * | 2007-06-28 | 2010-07-21 | 巴科曼实验室国际公司 | Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products |
| CN102493287A (en) * | 2011-12-08 | 2012-06-13 | 南京博方生物科技有限公司 | Method for producing plate by fiber-containing sludge and application thereof |
| CN102452785A (en) * | 2011-12-19 | 2012-05-16 | 陕西科技大学 | Efficient dehydration method for papermaking sludge |
| CN103711041A (en) * | 2014-01-13 | 2014-04-09 | 河北嘉诚环境工程有限公司 | Method for producing hard fiberboard through paper mill sludge |
| CN106927654A (en) * | 2015-12-29 | 2017-07-07 | 浙江鑫丰特种纸业股份有限公司 | A kind of paper mill sludge resource utilization system and its method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145459A (en) * | 2023-02-24 | 2023-05-23 | 湖南康业生物科技有限公司 | Papermaking method by utilizing recycled sludge |
| CN116145459B (en) * | 2023-02-24 | 2023-12-26 | 湖南康业生物科技有限公司 | Papermaking method by utilizing recycled sludge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8613781B2 (en) | Lignin dewatering process | |
| Halysh et al. | Utilization of modified biosorbents based on walnut shells in the processes of wastewater treatment from heavy metal ions | |
| CN101597875B (en) | New technique for improving paper strength by joint gelatinization of starch and pulp | |
| CN102432143B (en) | Chemical agent for treating and recycling paper sludge and treating method thereof | |
| CN103806319B (en) | Method for producing high-intensity corrugated body paper from waste paper | |
| CN103696311B (en) | A kind of recycling method of office waste paper | |
| CN103938476B (en) | A kind of cotton linter soaks into pulping by cooking new method in advance | |
| CN105198116B (en) | The method for producing waste water is reduced in a kind of clean paper making | |
| CN107881843A (en) | The manufacture craft of cardboard is made using paper mill sludge | |
| CN108424529A (en) | A kind of method and its special equipment of the separating lignin from bagasse | |
| CN107974872A (en) | The manufacture craft of environment-friendly paperboard | |
| CN109133554B (en) | A kind of sludge recycling device and sludge recycling method | |
| CN101591870A (en) | A kind of manufacturing process of high-strength pulp board | |
| CN107237193B (en) | A method of waste paper pulp-making is squeezed out using screw machine | |
| KR20190016042A (en) | Improved sludge dewatering assisted by coagulant and equipment for carrying out this method | |
| CN101935089A (en) | Membrane concentrating and recycling method of hydrogen peroxide alkaline chemico-mechanical pulping waste water | |
| CN106968118B (en) | A kind of fruit cultivating bag paper and its zero-emission production method of waste paper manufacture | |
| CN106007220A (en) | An Ultrasonic Catalytic Crosslinking-Cellulose Press Filtration Separation System | |
| CN107686153A (en) | A kind of method that flocculant is prepared using papermaking wastewater | |
| CN102021854A (en) | Method for pulping cotton linter | |
| CN106007231B (en) | A treatment system for removing cellulose in papermaking wastewater | |
| CN106315580A (en) | Active carbon preparation method using deinked sludge as raw material | |
| CN106630867A (en) | Wood-like floor tile and preparation method thereof | |
| CN105174325A (en) | Method for preparing furfural wastewater treating agent by means of furfural residues | |
| CN114293395A (en) | Low-waste-emission pulping process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |
|
| RJ01 | Rejection of invention patent application after publication |