CN105502384A - Preparation method of shaddock-peel-base activated carbon and application of shaddock-peel-base activated carbon to phenol-containing wastewater and waste gas - Google Patents
Preparation method of shaddock-peel-base activated carbon and application of shaddock-peel-base activated carbon to phenol-containing wastewater and waste gas Download PDFInfo
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- CN105502384A CN105502384A CN201510922549.0A CN201510922549A CN105502384A CN 105502384 A CN105502384 A CN 105502384A CN 201510922549 A CN201510922549 A CN 201510922549A CN 105502384 A CN105502384 A CN 105502384A
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- activated carbon
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/306—Surface area, e.g. BET-specific surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/308—Pore size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/311—Porosity, e.g. pore volume
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/14—Pore volume
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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Abstract
The invention provides a preparation method of shaddock-peel-base activated carbon. According to the method, shaddock peel powder and activating agents are mixed according to a mol ratio being 1:0.2 to 1:6 by using an equi-volumetic impregnation method; the materials are put at a room temperature for 0.5 to 24 hours, are dried for 3 to 8 hours at 50 to 110 DEG C, and are then carbonized for 1 to 5 hours at 200 to 400 DEG C through nitrogen or argon introduction at the air speed being 2000 to 20000h<-1>; then, the shaddock-peel-base activated carbon is obtained under the conditions of the activation temperature being 500 to 1000 DEG C and the activation time being 0.5 to 6h. The preparation method has the advantages of low cost and good treatment effect.
Description
Technical field
The invention belongs to a kind of biomass-based gac for the treatment of phenolic wastewater, waste gas, be specifically related to a kind of preparation method of pomelo peel matrix activated carbon and the application in phenolic wastewater or waste gas thereof.
Background technology
In industrial production as Coal Chemical Industry, petrochemical complex, dyeing etc. can produce aldehydes matter, these aldehydes matters enter in waste water or waste gas, form phenolic wastewater or contain phenol waste gas.Toxicity of phenols in waste water is high, be difficult to biological degradation, and the phenol in waste gas easily causes dermal tokicity.Therefore, there is strict restriction in China to the emission concentration of aldehydes matter in phenolic wastewater and waste gas, the maximum permissible concentration of regulation volatile phenol in water is respectively: tap water 0.002mg/L, agricultural water 1.0mg/L, industrial wastewater discharge standard 0.5mg/L, in the flue gas of industrial gaseous waste, aldehydes matter 1 class district prohibits row, 2 class district limit row maximum permissible concentration 115mg/m
3.
Gac has larger specific surface area and flourishing pore texture, has higher absorption property to the waste water of different concns and waste gas, is therefore the improvement that the adsorption technology of sorbent material is widely used in organic waste water and waste gas with gac.But, after charcoal absorption is saturated, need to carry out regeneration to recover its absorption property to it, and the regeneration of gac is more complicated.Starting material (as coal, the pitch etc.) price that tradition prepares gac is higher, therefore, utilizes agriculture and forestry organic waste material prepare the biomass-based activated carbon treatment phenolic wastewater of low cost or be of great significance containing phenol waste gas tool.
Summary of the invention
The object of this invention is to provide a kind of cost low, the preparation method of the pomelo peel matrix activated carbon that treatment effect is good and the application in phenolic wastewater, waste gas.
The present invention is based on the preparation method that gac prepared by pomelo peel is a kind of gac based on chemical activation method.Described chemical activation method is by charing, activates two steps and combine, and according to incipient impregnation, first shaddock peel powder is mixed with a certain proportion of chemical activating agent, at room temperature floods for some time, then after charing, activation, becomes pomelo peel matrix activated carbon.
Preparation method of the present invention comprises the steps:
By shaddock peel powder: activator mol ratio=1:0.2 ~ 1:6, adopt equi-volume impregnating, by shaddock peel powder and activator mix, room temperature is placed 0.5 ~ 24 hour, 50 ~ 110 DEG C of dryings 3 ~ 8 hours, then at 200 ~ 400 DEG C, with 2000 ~ 20000h
-1air speed pass into nitrogen or argon gas, carbonize 1 ~ 5 hour, then activation temperature 500 ~ 1000 DEG C, under soak time 0.5 ~ 6h, obtained pomelo peel matrix activated carbon.
Activator of the present invention is zinc chloride, phosphoric acid, salt of wormwood or potassium hydroxide.
Pomelo peel matrix activated carbon of the present invention can be used for phenolic wastewater and the waste gas of normal temperature process middle and high concentration.
The application method of the pomelo peel matrix activated carbon that the method for the invention is prepared is as follows:
By pomelo peel matrix activated carbon with containing the waste water of phenol or waste gas=100mg:10 ~ 100ml, by phenolic wastewater or waste gas by being equipped with the adsorption column of pomelo peel matrix activated carbon, under normal pressure and temperature, adsorb 0.5 ~ 24 hour.
Pomelo peel matrix activated carbon of the present invention is compared with coal activated carbon, and its micropore, mesopore are more flourishing, specific surface area is larger, have higher Adsorption of Phenol performance, effectively can adsorb the phenol in waste water, waste gas.
The preparation of pomelo peel matrix activated carbon of the present invention, required equipment is less, and schedule of operation is comparatively simple, and gac productive rate prepared by chemical activation method is high, and specific surface area is large, and pore texture is more flourishing.The present invention not only can process the phenol in waste water, can also process the phenol in waste gas, has widened the process range of gac.
Embodiment
Embodiment 1
2.5g zinc chloride is added in 20.6mL distilled water and is mixed with burnettize solution.Poured into by steeping fluid in 5g shaddock powder and stir, room temperature places 8 hours, and drying 8 hours at 60 DEG C, under 400 DEG C of conditions, with 10000h
-1air speed pass into nitrogen, carbonize 1 hour, then at activation temperature 900 DEG C, activate 1h, naturally cool to room temperature.With the product after distilled water wash activation, can obtain pomelo peel matrix activated carbon in 105 DEG C of dry 24h, characterization result is in table 1.
By the waste water 20mL containing 100mg/L phenol by being equipped with the adsorption column of 100mg pomelo peel matrix activated carbon, under normal pressure and temperature, adsorb 18h.Then the absorption photometric value of the phenol in wastewater after its absorption is surveyed with ultraviolet spectrophotometer, pomelo peel matrix activated carbon has adsorbed the phenol of in waste water 99.6%, the concentration value removing the phenol in wastewater after phenol is 0.4mg/L, reaches emission standard (in trade effluent volatile phenol emission standard 0.5mg/L).
Embodiment 2
5.0g potassium hydroxide is added in 20.6mL distilled water and is mixed with potassium hydroxide dipping solution.Poured into by steeping fluid in 5g shaddock powder and stir, room temperature places 12 hours, and drying 6 hours at 80 DEG C, under 300 DEG C of conditions, with 5000h
-1air speed pass into argon gas, carbonize 3 hours, then at activation temperature 700 DEG C, activate 3h, naturally cool to room temperature.With the product after distilled water wash activation, can obtain pomelo peel matrix activated carbon in 105 DEG C of dry 24h, characterization result is in table 1.
By the waste water 100mL containing 30mg/L phenol by being equipped with the adsorption column of 100mg pomelo peel matrix activated carbon, under normal pressure and temperature, adsorb 12h.Then survey the absorption photometric value of the phenol in wastewater after its absorption with ultraviolet spectrophotometer, pomelo peel matrix activated carbon has adsorbed the phenol of in waste water 99.4%, and the concentration value removing the phenol in wastewater after phenol is 0.18mg/L, reaches emission standard.
Embodiment 3
15.0g phosphoric acid (analytical pure) is added in 20.6mL distilled water and is mixed with phosphate impregnation solution.Poured into by steeping fluid in 5g shaddock powder and stir, room temperature places 24 hours, and drying 4 hours at 110 DEG C, under 400 DEG C of conditions, with 20000h
-1air speed pass into argon gas, carbonize 2 hours, then at activation temperature 500 DEG C, activate 5h, naturally cool to room temperature.With the product after distilled water wash activation, can obtain pomelo peel matrix activated carbon in 105 DEG C of dry 24h, characterization result is in table 1.
Will containing 150mg/m
3the waste gas 0.05m of phenol
3(104.2mL/min) by being equipped with the adsorption column of 50mg pomelo peel matrix activated carbon, under normal pressure and temperature, 8h is adsorbed.The absorption photometric value of phenol in the waste gas after its absorption is surveyed with ultraviolet spectrophotometer, pomelo peel matrix activated carbon has adsorbed the phenol of in waste gas 72%, the concentration value removed in the waste gas phenol after phenol is 42mg/L, and (in the flue gas of industrial gaseous waste, aldehydes matter 2 class district limit arranges maximum permissible concentration 115mg/m to reach emission standard
3).
Embodiment 4
10.0g salt of wormwood is added in 20.6mL distilled water and is mixed with salt of wormwood dipping solution.Poured into by steeping fluid in 5g shaddock powder and stir, room temperature places 16 hours, and drying 5 hours at 100 DEG C, under 350 DEG C of conditions, with 2000h
-1air speed pass into nitrogen, carbonize 4 hours, then at activation temperature 800 DEG C, activate 2h, naturally cool to room temperature.With the product after distilled water wash activation, can obtain pomelo peel matrix activated carbon in 105 DEG C of dry 24h, characterization result is in table 1.
By the waste water 50mL containing 50mg/L phenol by being equipped with the adsorption column of 100mg pomelo peel matrix activated carbon, under normal pressure and temperature, adsorb 24h.Survey the absorption photometric value of the phenol in wastewater after its absorption with ultraviolet spectrophotometer, pomelo peel matrix activated carbon has adsorbed the phenol of in waste water 99.7%, and the concentration value removed in the waste water phenol after phenol is 0.15mg/L, reaches emission standard.
The pore property of table 1 pomelo peel matrix activated carbon
As can be seen from Table 1, pomelo peel matrix activated carbon micro-, mesopore is more flourishing, specific surface area is larger.
Claims (3)
1. a preparation method for pomelo peel matrix activated carbon, is characterized in that comprising the steps:
By shaddock peel powder: activator mol ratio=1:0.2 ~ 1:6, adopt equi-volume impregnating, by shaddock peel powder and activator mix, room temperature is placed 0.5 ~ 24 hour, 50 ~ 110 DEG C of dryings 3 ~ 8 hours, then at 200 ~ 400 DEG C, with 2000 ~ 20000h
-1air speed pass into nitrogen or argon gas, carbonize 1 ~ 5 hour, then activation temperature 500 ~ 1000 DEG C, under soak time 0.5 ~ 6h, obtained pomelo peel matrix activated carbon.
2. the preparation method of a kind of pomelo peel matrix activated carbon as claimed in claim 1, is characterized in that described activator is zinc chloride, phosphoric acid, salt of wormwood or potassium hydroxide.
3. the preparation method of pomelo peel matrix activated carbon as claimed in claim 1 or 2, is characterized in that comprising the steps:
By pomelo peel matrix activated carbon with containing the waste water of phenol or waste gas=100mg:10 ~ 100ml, by phenolic wastewater or waste gas by being equipped with the adsorption column of pomelo peel matrix activated carbon, under normal pressure and temperature, adsorb 0.5 ~ 24 hour.
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| CN201510922549.0A CN105502384A (en) | 2015-12-14 | 2015-12-14 | Preparation method of shaddock-peel-base activated carbon and application of shaddock-peel-base activated carbon to phenol-containing wastewater and waste gas |
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| CN201510922549.0A CN105502384A (en) | 2015-12-14 | 2015-12-14 | Preparation method of shaddock-peel-base activated carbon and application of shaddock-peel-base activated carbon to phenol-containing wastewater and waste gas |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065332A (en) * | 2016-06-03 | 2016-11-02 | 浙江科技学院 | A kind of method and the application that utilize pomelo peel hydro-thermal carbonization to prepare charcoal |
| CN107213868A (en) * | 2017-07-06 | 2017-09-29 | 江南大学 | One kind has formaldehyde absorbing degradation function safe green composite and preparation method |
| CN107867688A (en) * | 2017-11-22 | 2018-04-03 | 汪远昊 | A kind of preparation method for the shaddock peel activated carbon for being used for purification of air and sewage disposal |
| CN107902653A (en) * | 2017-11-22 | 2018-04-13 | 汪远昊 | For air purification and the shaddock peel activated carbon one-step preppn process of sewage disposal |
| CN108236927A (en) * | 2016-12-27 | 2018-07-03 | 海门市源美美术图案设计有限公司 | A kind of modified pomelo peel and its preparation method and application |
| CN108529711A (en) * | 2018-04-25 | 2018-09-14 | 温州正城建设有限公司 | A kind of buried town squares rain water collecting system |
| CN109133054A (en) * | 2018-11-05 | 2019-01-04 | 武汉大学 | A kind of mixed base activated carbon from activated sludge and preparation method thereof |
| CN109264901A (en) * | 2018-11-30 | 2019-01-25 | 刘岳定 | High efficiency multistage water purification catridge |
| CN110182803A (en) * | 2019-06-11 | 2019-08-30 | 武汉科技大学 | A kind of absorbent charcoal material and preparation method thereof |
| CN110745825A (en) * | 2019-12-16 | 2020-02-04 | 江苏科技大学 | Preparation method of high-performance biomass-based shaddock peel oriented activated carbon VOCs adsorbent |
| CN110790275A (en) * | 2019-11-25 | 2020-02-14 | 中国林业科学研究院林产化学工业研究所 | Method for improving strength of formed activated carbon by matching biomass raw materials and product thereof |
| CN110817865A (en) * | 2019-11-29 | 2020-02-21 | 西南大学 | Shaddock valve-based porous activated carbon and preparation method and application thereof |
| CN111821950A (en) * | 2020-08-18 | 2020-10-27 | 湘潭大学 | Preparation method of biochar ammonia adsorbent |
| CN115124036A (en) * | 2022-06-24 | 2022-09-30 | 闽西职业技术学院 | Preparation method of dragon fruit peel activated carbon for adsorbing phenol in wastewater |
| CN116239117A (en) * | 2023-03-23 | 2023-06-09 | 大连理工大学 | Preparation method of shaddock peel-based activated carbon and application of shaddock peel-based activated carbon in removal of ethane in carbon dioxide |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065332A (en) * | 2016-06-03 | 2016-11-02 | 浙江科技学院 | A kind of method and the application that utilize pomelo peel hydro-thermal carbonization to prepare charcoal |
| CN108236927A (en) * | 2016-12-27 | 2018-07-03 | 海门市源美美术图案设计有限公司 | A kind of modified pomelo peel and its preparation method and application |
| CN107213868A (en) * | 2017-07-06 | 2017-09-29 | 江南大学 | One kind has formaldehyde absorbing degradation function safe green composite and preparation method |
| CN107867688A (en) * | 2017-11-22 | 2018-04-03 | 汪远昊 | A kind of preparation method for the shaddock peel activated carbon for being used for purification of air and sewage disposal |
| CN107902653A (en) * | 2017-11-22 | 2018-04-13 | 汪远昊 | For air purification and the shaddock peel activated carbon one-step preppn process of sewage disposal |
| CN108529711A (en) * | 2018-04-25 | 2018-09-14 | 温州正城建设有限公司 | A kind of buried town squares rain water collecting system |
| CN109133054A (en) * | 2018-11-05 | 2019-01-04 | 武汉大学 | A kind of mixed base activated carbon from activated sludge and preparation method thereof |
| CN109264901B (en) * | 2018-11-30 | 2021-09-17 | 展森科技(瓦房店)有限公司 | High-efficiency multistage water purification filter element |
| CN109264901A (en) * | 2018-11-30 | 2019-01-25 | 刘岳定 | High efficiency multistage water purification catridge |
| CN110182803A (en) * | 2019-06-11 | 2019-08-30 | 武汉科技大学 | A kind of absorbent charcoal material and preparation method thereof |
| CN110790275A (en) * | 2019-11-25 | 2020-02-14 | 中国林业科学研究院林产化学工业研究所 | Method for improving strength of formed activated carbon by matching biomass raw materials and product thereof |
| CN110817865A (en) * | 2019-11-29 | 2020-02-21 | 西南大学 | Shaddock valve-based porous activated carbon and preparation method and application thereof |
| CN110745825A (en) * | 2019-12-16 | 2020-02-04 | 江苏科技大学 | Preparation method of high-performance biomass-based shaddock peel oriented activated carbon VOCs adsorbent |
| CN111821950A (en) * | 2020-08-18 | 2020-10-27 | 湘潭大学 | Preparation method of biochar ammonia adsorbent |
| CN115124036A (en) * | 2022-06-24 | 2022-09-30 | 闽西职业技术学院 | Preparation method of dragon fruit peel activated carbon for adsorbing phenol in wastewater |
| CN116239117A (en) * | 2023-03-23 | 2023-06-09 | 大连理工大学 | Preparation method of shaddock peel-based activated carbon and application of shaddock peel-based activated carbon in removal of ethane in carbon dioxide |
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