CN105155325A - Biological wastepaper deinking method - Google Patents
Biological wastepaper deinking method Download PDFInfo
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- CN105155325A CN105155325A CN201510494888.3A CN201510494888A CN105155325A CN 105155325 A CN105155325 A CN 105155325A CN 201510494888 A CN201510494888 A CN 201510494888A CN 105155325 A CN105155325 A CN 105155325A
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- waste paper
- secondary stock
- minutes
- deinking
- wastepaper
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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 invention discloses a biological wastepaper deinking method. A preparation process comprises preliminary cleaning, grinding, fermentation, adsorption and floatation. The biological wastepaper deinking method is simple in process and applicable to deinking processing of waste corrugated paper, waste newspaper, colored offset newspaper, waste book and magazine paper, office wastepaper as well as laser and electrostatic copy paper; white rot fungi are used for solid fermentation, a little water is consumed, sewage can be treated during wastepaper deinking, and the sewage pollution degree is reduced; the pH value for whole treatment process is neutral, an additional additive is not needed to be added to regulate the pH value, the cost is saved, the quality of wastepaper pulp is improved, sepiolite adsorbs ink in the sewage, a few pollutants are produced and can be recycled after simple treatment, the resources are saved, the cost is reduced, and the environment is protected; after deinking, the wastewater has little fiber loss, high whiteness, low dirt count and good recyclability.
Description
Technical field
The present invention relates generally to a kind of biological deinking process for waste paper, belongs to pulp technology for making paper.
Background technology
Packaging has two large functions: one is that protection commodity do not damage, never degenerate in manufacture, transport, storage, sales process; Two is play decoration to commodity, beautify, publicize and value-added effect, has also beautified the life of people, has met the material and cultural needs that consumers in general are growing, promoted and pulled consumption.Wrapping paper, as a kind of important packaging material, has been widely used in the packing of product of every profession and trade, and it contains boxboard and fluting medium, white board and art post paperboard, soft package of beverage paper, special packing paper etc.
China's Forest Resources lacks, wood pulp depends on import, waste paper reaches more than 70% in China's paper making raw material, while waste paper is recycled, the contaminated wastewater produced in waste paper pulp-making process and waste water handling problem more and more outstanding, particularly Deinking Pulp waste water, this is relevant with production technology with Deinking Pulp character.Usually, generally add NaOH in deinking office waste paper process, require that pH value reaches more than 10, under high alkalinity environment, ink is easily separated with fiber, but quite unfavorable to equipment, operating environment, stock quality, subsequent wastewater treatment etc.
Summary of the invention
In order to make up the defect of prior art, the object of this invention is to provide a kind of biological deinking process for waste paper.
A kind of biological deinking process for waste paper, comprises the following steps:
(1) waste paper is put into collection frame, collection frame is put into kitchen sink, collection frame vertical tremor is tentatively cleaned;
(2) by tentatively cleaning after waste paper carry out vacuum stirring pulverizing, make the weight ratio of waste paper and water be 1:3.5;
(3) secondary stock is carried out sterilizing, chilling temperature to 30 ~ 35 DEG C, in secondary stock, access whiterot fungi, inoculum concentration is 6% ~ 8% of secondary stock weight, stirs, and processes 15 ~ 20 days;
(4) in the secondary stock after ultrasonic, sepiolite is added, adsorption treatment 40 ~ 50 minutes;
(5) secondary stock after adsorption treatment is carried out flotation.
Described step 3) carries out sterilizing to secondary stock, first 121 DEG C of sterilizings 20 ~ 25 minutes, then irradiates with ultraviolet light, often irradiates 7 minutes, stops 3 minutes, continues 20 minutes altogether.
The sepiolite particle diameter of described step 4) is 1 ~ 1.5cm.Sepiolite addition is the 2-3% of slurry weight.
Advantage of the present invention is: the biological deinking process for waste paper of one provided by the invention, and process is simple, is applicable to the deinking process of useless corrugated paper, crushed news, color offset newsprint, waste and old books and periodicals magazine paper, wastepaper, laser and electro-photographic paper; Utilize whiterot fungi to carry out solid state fermentation, water consumption is few, while carrying out deinking to waste paper, can also process sewage, alleviate the pollution level of sewage; The pH value of whole processing procedure is neutral, does not need other additive to regulate pH value, and cost-saving, improve the quality of secondary stock, sepiolite has adsorbed the ink in sewage, and sepiolite particle diameter is large, is easily separated with secondary stock; The pollutant produced is few, and can recycle after simple process, economizes on resources, reduces costs, protection of the environment; Waste paper is after deinking, and fiber loss is few, and whiteness is high, and dirt count is little, and reusing is good.
Detailed description of the invention
With specific embodiment, the present invention is described below.
Embodiment 1
A kind of biological deinking process for waste paper, preparation process comprises the following steps:
(1) waste paper is put into collection frame, collection frame is put into kitchen sink, collection frame vertical tremor is tentatively cleaned;
(2) by tentatively cleaning after waste paper carry out vacuum stirring pulverizing, make the weight ratio of waste paper and water be 1:3.5;
(3) secondary stock is carried out sterilizing, sterilizing is carried out to secondary stock, first 121 DEG C of sterilizings 20 minutes, then irradiates with ultraviolet light, often irradiate 7 minutes, stop 3 minutes, continue 20 minutes altogether, chilling temperature to 30 DEG C, whiterot fungi is accessed in secondary stock, inoculum concentration is 6% of secondary stock weight, stirs, and processes 15 days;
(4) in the secondary stock after ultrasonic, add sepiolite, particle diameter is 1cm, adsorption treatment 40 minutes;
(5) secondary stock after adsorption treatment is carried out flotation.
Embodiment 2
A kind of biological deinking process for waste paper, preparation process comprises the following steps:
(1) waste paper is put into collection frame, collection frame is put into kitchen sink, collection frame vertical tremor is tentatively cleaned;
(2) by tentatively cleaning after waste paper carry out vacuum stirring pulverizing, make the weight ratio of waste paper and water be 1:3.5;
(3) secondary stock is carried out sterilizing, sterilizing is carried out to secondary stock, first 121 DEG C of sterilizings 23 minutes, then irradiates with ultraviolet light, often irradiate 7 minutes, stop 3 minutes, continue 20 minutes altogether, chilling temperature to 33 DEG C, whiterot fungi is accessed in secondary stock, inoculum concentration is 7% of secondary stock weight, stirs, and processes 18 days;
(4) in the secondary stock after ultrasonic, add sepiolite, particle diameter is 1.3cm, and adding two is slurry weight 2%, adsorption treatment 45 minutes;
(5) secondary stock after adsorption treatment is carried out flotation.
Embodiment 3
A kind of biological deinking process for waste paper, preparation process comprises the following steps:
(1) waste paper is put into collection frame, collection frame is put into kitchen sink, collection frame vertical tremor is tentatively cleaned;
(2) by tentatively cleaning after waste paper carry out vacuum stirring pulverizing, make the weight ratio of waste paper and water be 1:3.5;
(3) secondary stock is carried out sterilizing, sterilizing is carried out to secondary stock, first 121 DEG C of sterilizings 25 minutes, then irradiates with ultraviolet light, often irradiate 7 minutes, stop 3 minutes, continue 20 minutes altogether, chilling temperature to 35 DEG C, whiterot fungi is accessed in secondary stock, inoculum concentration is 8% of secondary stock weight, stirs, and processes 20 days;
(4) in the secondary stock after ultrasonic, add sepiolite, particle diameter is 1.5cm, adsorption treatment 50 minutes;
(5) secondary stock after adsorption treatment is carried out flotation.
Pulp from decoloured waste paper of the present invention and common pulp from decoloured waste paper are contrasted, the results are shown in Table 1.
Table 1: pulp from decoloured waste paper of the present invention and usual pulp from decoloured waste paper contrast
| Project | Yield/% | Whiteness/% (ISO) | Dirt count/ppm |
| Embodiment 1 | 82 | 76 | 154 |
| Embodiment 2 | 81 | 77 | 155 |
| Embodiment 3 | 79 | 75 | 157 |
| Usually | 63 | 55 | 277 |
Show from the result of table 1, biological deinking process for waste paper provided by the invention, pulp yield is high, and whiteness is high, and dirt count is little, in deinking process, does not separately add the adjustment that chemical reagent carries out pH value, cost-saving, produces sewage few, protection of the environment.
Claims (3)
1. a biological deinking process for waste paper, is characterized in that, comprises the following steps:
(1) waste paper is put into collection frame, collection frame is put into kitchen sink, collection frame vertical tremor is tentatively cleaned;
(2) by tentatively cleaning after waste paper carry out vacuum stirring pulverizing, make the weight ratio of waste paper and water be 1:3.5;
(3) secondary stock is carried out sterilizing, chilling temperature to 30 ~ 35 DEG C, in secondary stock, access whiterot fungi, inoculum concentration is 6% ~ 8% of secondary stock weight, stirs, and processes 15 ~ 20 days;
(4) in the secondary stock after ultrasonic, sepiolite is added, adsorption treatment 40 ~ 50 minutes;
(5) secondary stock after adsorption treatment is carried out flotation.
2. a kind of biological deinking process for waste paper as claimed in claim 1, it is characterized in that, described step 3) carries out sterilizing to secondary stock, first 121 DEG C of sterilizings 20 ~ 25 minutes, then irradiates with ultraviolet light, often irradiates 7 minutes, stops 3 minutes, continues 20 minutes altogether.
3. a kind of biological deinking process for waste paper as claimed in claim 1, is characterized in that, the sepiolite particle diameter of described step 4) is 1 ~ 1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494888.3A CN105155325A (en) | 2015-08-13 | 2015-08-13 | Biological wastepaper deinking method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494888.3A CN105155325A (en) | 2015-08-13 | 2015-08-13 | Biological wastepaper deinking method |
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| CN105155325A true CN105155325A (en) | 2015-12-16 |
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| CN201510494888.3A Pending CN105155325A (en) | 2015-08-13 | 2015-08-13 | Biological wastepaper deinking method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223097A (en) * | 2016-08-28 | 2016-12-14 | 仇颖超 | A kind of method of high paper pulp yield deinking |
| CN107119480A (en) * | 2017-06-16 | 2017-09-01 | 江苏金沃机械有限公司 | A kind of waste paper recycles low ink pulping process |
| CN107217521A (en) * | 2017-06-16 | 2017-09-29 | 江苏金沃机械有限公司 | A kind of low ink paper sludge and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560356A (en) * | 2004-03-09 | 2005-01-05 | 华南理工大学 | Method for decolor to second fibre by white rot bacteria |
| CN101148283A (en) * | 2007-08-16 | 2008-03-26 | 深圳市三力星实业有限公司 | Paper-making deinking sewage treatment method |
-
2015
- 2015-08-13 CN CN201510494888.3A patent/CN105155325A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560356A (en) * | 2004-03-09 | 2005-01-05 | 华南理工大学 | Method for decolor to second fibre by white rot bacteria |
| CN101148283A (en) * | 2007-08-16 | 2008-03-26 | 深圳市三力星实业有限公司 | Paper-making deinking sewage treatment method |
Non-Patent Citations (1)
| Title |
|---|
| 李魁伟等: "热活化和酸活化改进海泡石的吸附性能", <<纸和造纸>> * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223097A (en) * | 2016-08-28 | 2016-12-14 | 仇颖超 | A kind of method of high paper pulp yield deinking |
| CN106223097B (en) * | 2016-08-28 | 2018-07-31 | 江苏康普印刷科技有限公司 | A kind of method of high paper pulp yield deinking |
| CN107119480A (en) * | 2017-06-16 | 2017-09-01 | 江苏金沃机械有限公司 | A kind of waste paper recycles low ink pulping process |
| CN107217521A (en) * | 2017-06-16 | 2017-09-29 | 江苏金沃机械有限公司 | A kind of low ink paper sludge and preparation method thereof |
| CN107119480B (en) * | 2017-06-16 | 2018-08-24 | 江苏浩宇电子科技有限公司 | A kind of waste paper recycles low ink pulping process |
| CN107217521B (en) * | 2017-06-16 | 2019-01-01 | 南京陶特思软件科技有限公司 | A kind of low ink paper sludge and preparation method thereof |
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Application publication date: 20151216 |