CN108358202A - A method of preparing activated carbon using deinking sludge - Google Patents
A method of preparing activated carbon using deinking sludge Download PDFInfo
- Publication number
- CN108358202A CN108358202A CN201810428279.1A CN201810428279A CN108358202A CN 108358202 A CN108358202 A CN 108358202A CN 201810428279 A CN201810428279 A CN 201810428279A CN 108358202 A CN108358202 A CN 108358202A
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- China
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- activated carbon
- sludge
- taking
- added
- phosphoric acid
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
Abstract
The invention discloses a kind of methods preparing activated carbon using deinking sludge, deinked sludge is first taken, adds in organic acid soln and impregnates, is sent into fluffer after taking-up and is discongested and wash, deinked sludge after discongesting is placed in phosphoric acid solution and is impregnated, it is sent into Muffle furnace and is activated after taking-up, dry, added in modifying agent after the activated carbon crude product that activation obtains is washed with deionized, ultrasonic reaction, be washed with distilled water after taking-up, drying to get；The modifying agent is the mixed aqueous solution of hydrogen peroxide, sodium alginate, mannitol.The present invention prepares activated carbon using deinked sludge as raw material, by phosphoric acid activation method, realizes the higher value application of waste, is of great significance to harmless treatment, the raising added value of product etc. of realizing deinked sludge.
Description
Technical field
The invention belongs to waste paper to be recycled technical field, and in particular to a kind of to prepare activated carbon using deinking sludge
Method.
Background technology
In recent years, waste and old paper has become the important source material of China's pulping and paper-making, and waste paper recycling can not only reduce
Production cost, additionally it is possible to protect the forest reserves in China to greatest extent, save mass energy.But paper be recycled back to it is used
Cheng Zhong, most waste paper will pass through deinking workshop section, especially in production high-grade Deinking Pulp when, have enormous amount
Deinked sludge generates.Deinked sludge is larger to environmental hazard, and processing cost is highly difficult big；According to China's most of waste paper systems at present
For the operation conditions of slurry factory, the innoxious of deinked sludge, minimizing processing or recycling oneself to become paper plant useless in solid
Urgent problem to be solved in gurry operation, by the good operation of the good operation and wastewater treatment working section that are entirely produced to paper mill
All even there is particularly important meaning to the Improvement of Ecological Environment of paper mill surrounding area.Activated carbon is the adsorption material being dirt cheap
Material, has a wide range of applications in numerous areas such as water process, medicine, food, if activity can be prepared by raw material of deinked sludge
Charcoal is environmentally protective, so that it may to realize minimizing, the harmless treatment of deinked sludge, and improve added value of product.
Invention content
The object of the present invention is to provide a kind of methods preparing activated carbon using deinking sludge.
A method of activated carbon being prepared using deinking sludge, is included the following steps：
Step 1, deinked sludge is taken, adds in the organic acid soln of 2-3 times of weight and impregnates 3-5h, is sent into fluffer and dredges after taking-up
It solves and washs；
Step 2, the deinked sludge after discongesting is placed in the phosphoric acid solution of 4-5 times of weight and impregnates 10-12h, horse is sent into after taking-up
Not activated in stove；
Step 3, it dries, is added in the modifying agent of 1-2 times of weight after the activated carbon crude product that activation obtains being washed with deionized,
Ultrasonic reaction is washed with distilled water after taking-up, drying to get；
A concentration of 10-15wt.% of the organic acid soln；
A concentration of 50-60% of the phosphoric acid solution；
The modifying agent is the mixed aqueous solution of 5-10wt.% hydrogen peroxide, 1-3wt.% sodium alginates, 0.5-1wt.% mannitol.
Preferably, the one kind of the organic acid in tartaric acid, oxalic acid, malic acid or citric acid.
Preferably, also added with surfactant, a concentration of 2-4wt.% of surfactant in the organic acid soln.
Preferably, the surfactant is fatty alcohol polyoxyethylene ether.
Preferably, in step 2 activation temperature be 400-500 DEG C, soak time 90-120min.
Preferably, also added with 0.5-1wt% cellulases in the phosphoric acid solution.
The present invention prepares activated carbon using deinked sludge as raw material, by phosphoric acid activation method, realizes the high-valued of waste
It utilizes, is of great significance to harmless treatment, the raising added value of product etc. of realizing deinked sludge.
Specific implementation mode
Embodiment 1
A method of activated carbon being prepared using deinking sludge, is included the following steps：
Step 1, deinked sludge is taken, adds in the organic acid soln of 2 times of weight and impregnates 5h, is sent into fluffer and is discongested simultaneously after taking-up
Washing；
Step 2, the deinked sludge after discongesting is placed in the phosphoric acid solution of 4 times of weight and impregnates 12h, be sent into Muffle furnace after taking-up
It is activated；
Step 3, it dries, is added in the modifying agent of 1 times of weight after the activated carbon crude product that activation obtains being washed with deionized, surpassed
Phonoresponse is washed with distilled water after taking-up, drying to get；
A concentration of 10wt.% of the organic acid soln；
A concentration of the 50% of the phosphoric acid solution；
The modifying agent is the mixed aqueous solution of 5wt.% hydrogen peroxide, 3wt.% sodium alginates, 0.5wt.% mannitol,.
Wherein, the organic acid is tartaric acid, also added with surfactant aliphatic alcohol polyethenoxy in organic acid soln
Ether, a concentration of 2wt.% of surfactant.
In step 2 activation temperature be 400 DEG C, soak time 120min.
Also added with 0.5wt% cellulases in the phosphoric acid solution.
By gained activated carbon application in Cr（Ⅵ）Adsorption experiment, activated carbon dosage 15g/L, Cr（Ⅵ）Solution concentration is
200mg/L, adsorption time 4h, activated carbon is to Cr（Ⅵ）Removal rate be 95.34%, adsorbance 13.28mg/g.
By gained activated carbon application in Fe（Ⅲ）Adsorption experiment, activated carbon dosage 5g/L, Fe（Ⅲ）Solution concentration is
100mg/L, adsorption time 2h, activated carbon is to Fe（Ⅲ）Removal rate be 96.78%, adsorbance 28.94mg/g.
Embodiment 2
A method of activated carbon being prepared using deinking sludge, is included the following steps：
Step 1, deinked sludge is taken, adds in the organic acid soln of 2 times of weight and impregnates 4h, is sent into fluffer and is discongested simultaneously after taking-up
Washing；
Step 2, the deinked sludge after discongesting is placed in the phosphoric acid solution of 4 times of weight and impregnates 10h, be sent into Muffle furnace after taking-up
It is activated；
Step 3, it dries, is added in the modifying agent of 1 times of weight after the activated carbon crude product that activation obtains being washed with deionized, surpassed
Phonoresponse is washed with distilled water after taking-up, drying to get；
A concentration of 12wt.% of the organic acid soln；
A concentration of the 55% of the phosphoric acid solution；
The modifying agent is the mixed aqueous solution of 8wt.% hydrogen peroxide, 2wt.% sodium alginates, 0.7wt.% mannitol.
Wherein, the organic acid is tartaric acid, also added with surfactant aliphatic alcohol polyethenoxy in organic acid soln
Ether, a concentration of 3wt.% of surfactant.
In step 2 activation temperature be 500 DEG C, soak time 120min.
Also added with 0.7wt% cellulases in the phosphoric acid solution.
By gained activated carbon application in Cr（Ⅵ）Adsorption experiment, activated carbon dosage 15g/L, Cr（Ⅵ）Solution concentration is
200mg/L, adsorption time 4h, activated carbon is to Cr（Ⅵ）Removal rate be 94.65%, adsorbance 13.76mg/g.
By gained activated carbon application in Fe（Ⅲ）Adsorption experiment, activated carbon dosage 5g/L, Fe（Ⅲ）Solution concentration is
100mg/L, adsorption time 2h, activated carbon is to Fe（Ⅲ）Removal rate be 95.98%, adsorbance 27.67mg/g.
Embodiment 3
A method of activated carbon being prepared using deinking sludge, is included the following steps：
Step 1, deinked sludge is taken, adds in the organic acid soln of 3 times of weight and impregnates 3h, is sent into fluffer and is discongested simultaneously after taking-up
Washing；
Step 2, the deinked sludge after discongesting is placed in the phosphoric acid solution of 5 times of weight and impregnates 10h, be sent into Muffle furnace after taking-up
It is activated；
Step 3, it dries, is added in the modifying agent of 2 times of weight after the activated carbon crude product that activation obtains being washed with deionized, surpassed
Phonoresponse is washed with distilled water after taking-up, drying to get；
A concentration of 10wt.% of the organic acid soln；
A concentration of the 60% of the phosphoric acid solution；
The modifying agent is the mixed aqueous solution of 8wt.% hydrogen peroxide, 2wt.% sodium alginates, 1wt.% mannitol,.
Wherein, the organic acid is tartaric acid, also added with surfactant aliphatic alcohol polyethenoxy in organic acid soln
Ether, a concentration of 3wt.% of surfactant.
In step 2 activation temperature be 500 DEG C, soak time 90min.
Also added with 0.5wt% cellulases in the phosphoric acid solution.
By gained activated carbon application in Cr（Ⅵ）Adsorption experiment, activated carbon dosage 15g/L, Cr（Ⅵ）Solution concentration is
200mg/L, adsorption time 4h, activated carbon is to Cr（Ⅵ）Removal rate be 94.32%, adsorbance 12.87mg/g.
By gained activated carbon application in Fe（Ⅲ）Adsorption experiment, activated carbon dosage 5g/L, Fe（Ⅲ）Solution concentration is
100mg/L, adsorption time 2h, activated carbon is to Fe（Ⅲ）Removal rate be 94.35%, adsorbance 29.12mg/g.
Embodiment 4
A method of activated carbon being prepared using deinking sludge, is included the following steps：
Step 1, deinked sludge is taken, adds in the organic acid soln of 3 times of weight and impregnates 3h, is sent into fluffer and is discongested simultaneously after taking-up
Washing；
Step 2, the deinked sludge after discongesting is placed in the phosphoric acid solution of 5 times of weight and impregnates 10h, be sent into Muffle furnace after taking-up
It is activated；
Step 3, it dries, is added in the modifying agent of 1 times of weight after the activated carbon crude product that activation obtains being washed with deionized, surpassed
Phonoresponse is washed with distilled water after taking-up, drying to get；
A concentration of 15wt.% of the organic acid soln；
A concentration of the 60% of the phosphoric acid solution；
The modifying agent is the mixed aqueous solution of 10wt.% hydrogen peroxide, 1wt.% sodium alginates, 1wt.% mannitol,.
Wherein, the organic acid is tartaric acid, also added with surfactant aliphatic alcohol polyethenoxy in organic acid soln
Ether, a concentration of 4wt.% of surfactant.
In step 2 activation temperature be 400 DEG C, soak time 120min.
Also added with 1wt% cellulases in the phosphoric acid solution.
By gained activated carbon application in Cr（Ⅵ）Adsorption experiment, activated carbon dosage 15g/L, Cr（Ⅵ）Solution concentration is
200mg/L, adsorption time 4h, activated carbon is to Cr（Ⅵ）Removal rate be 93.16%, adsorbance 13.56mg/g.
By gained activated carbon application in Fe（Ⅲ）Adsorption experiment, activated carbon dosage 5g/L, Fe（Ⅲ）Solution concentration is
100mg/L, adsorption time 2h, activated carbon is to Fe（Ⅲ）Removal rate be 93.17%, adsorbance 26.58mg/g.
Claims (6)
1. a kind of method preparing activated carbon using deinking sludge, it is characterised in that：Include the following steps：
Step 1, deinked sludge is taken, adds in the organic acid soln of 2-3 times of weight and impregnates 3-5h, is sent into fluffer and dredges after taking-up
It solves and washs；
Step 2, the deinked sludge after discongesting is placed in the phosphoric acid solution of 4-5 times of weight and impregnates 10-12h, horse is sent into after taking-up
Not activated in stove；
Step 3, it dries, is added in the modifying agent of 1-2 times of weight after the activated carbon crude product that activation obtains being washed with deionized,
Ultrasonic reaction is washed with distilled water after taking-up, drying to get；
A concentration of 10-15wt.% of the organic acid soln；
A concentration of 50-60% of the phosphoric acid solution；
The modifying agent is the mixed aqueous solution of 5-10wt.% hydrogen peroxide, 1-3wt.% sodium alginates, 0.5-1wt.% mannitol.
2. the method according to claim 1 for preparing activated carbon using deinking sludge, it is characterised in that：It is described organic
The one kind of acid in tartaric acid, oxalic acid, malic acid or citric acid.
3. the method according to claim 1 for preparing activated carbon using deinking sludge, it is characterised in that：It is described organic
Also added with surfactant, a concentration of 2-4wt.% of surfactant in acid solution.
4. the method according to claim 1 for preparing activated carbon using deinking sludge, it is characterised in that：The surface
Activating agent is fatty alcohol polyoxyethylene ether.
5. the method according to claim 1 for preparing activated carbon using deinking sludge, it is characterised in that：In step 2
Activation temperature is 400-500 DEG C, soak time 90-120min.
6. the method according to claim 1 for preparing activated carbon using deinking sludge, it is characterised in that：The phosphoric acid
Also added with 0.5-1wt% cellulases in solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428279.1A CN108358202A (en) | 2018-05-07 | 2018-05-07 | A method of preparing activated carbon using deinking sludge |
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| CN201810428279.1A CN108358202A (en) | 2018-05-07 | 2018-05-07 | A method of preparing activated carbon using deinking sludge |
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| CN108358202A true CN108358202A (en) | 2018-08-03 |
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| CN201810428279.1A Pending CN108358202A (en) | 2018-05-07 | 2018-05-07 | A method of preparing activated carbon using deinking sludge |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658083A (en) * | 2012-04-28 | 2012-09-12 | 天津城市建设学院 | Modified sludge activated carbon for removing multiple heavy metals in sewage and sludge simultaneously |
| CN106276891A (en) * | 2016-07-29 | 2017-01-04 | 句容市百诚活性炭有限公司 | A kind of method preparing activated carbon for raw material with oil-tea camellia husks |
-
2018
- 2018-05-07 CN CN201810428279.1A patent/CN108358202A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658083A (en) * | 2012-04-28 | 2012-09-12 | 天津城市建设学院 | Modified sludge activated carbon for removing multiple heavy metals in sewage and sludge simultaneously |
| CN106276891A (en) * | 2016-07-29 | 2017-01-04 | 句容市百诚活性炭有限公司 | A kind of method preparing activated carbon for raw material with oil-tea camellia husks |
Non-Patent Citations (2)
| Title |
|---|
| 刘晨: "脱墨污泥中重金属的电动学去除研究", 《万方学位论文》 * |
| 程富江: "废纸再生脱墨污泥制备活性炭及其性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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Application publication date: 20180803 |