CN106799230A - A kind of charcoal based composite catalyst and its preparation method and application - Google Patents

A kind of charcoal based composite catalyst and its preparation method and application Download PDF

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Publication number
CN106799230A
CN106799230A CN201710027813.3A CN201710027813A CN106799230A CN 106799230 A CN106799230 A CN 106799230A CN 201710027813 A CN201710027813 A CN 201710027813A CN 106799230 A CN106799230 A CN 106799230A
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CN
China
Prior art keywords
catalyst
charcoal
tio
types
based composite
Prior art date
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Pending
Application number
CN201710027813.3A
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Chinese (zh)
Inventor
朱亮
郭彩荣
徐向阳
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CN201710027813.3A priority Critical patent/CN106799230A/en
Publication of CN106799230A publication Critical patent/CN106799230A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74—Iron group metals
    • B01J23/745—Iron
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry

Abstract

The invention discloses a kind of charcoal based composite catalyst and its preparation method and application.With graininess cocoanut active charcoal as carrier, Fe types or TiO are loaded2Type catalyst, described carrier granular cocoanut active charcoal particle size range is 0.6 0.9mm；Described Fe types or TiO2Type catalyst quality relative content is controlled 5%, and in solid granular, particle diameter is grade；Fe types or TiO on the catalyst2Type catalyst granules is evenly distributed on activated carbon surface.Preparation method of the present invention is simple, catalyst activity is high, excellent adsorption/desorption performance, Stability Analysis of Structures, prepare it is easy, stable effluent quality reaches one-level A standards after the biochemical unit tail water such as O3 catalytic oxidation treatment paper waste, dyeing waste water, and there is excellent removal capacity to specific pollutant in industrial wastewater, effectively reduce water outlet ecological risk.

Description

A kind of charcoal based composite catalyst and its preparation method and application
Technical field
The present invention relates to a kind of preparation method and application of charcoal based composite catalyst, belong to technical field of waste water processing.
Background technology
The industries such as papermaking, printing and dyeing, doctorization are the important foundation raw material industries in close relations with Chinese national economy, its life Wastewater discharge that product process is produced is big, composition is complicated, pollution concentration is high, in increasingly strict discharge standard and pollution emission reduction pressure Under power, conventional biological treatment technique is difficult to standard water discharge.High-level oxidation technology has oxidability by force, to pollutant without choosing Selecting property, reaction thoroughly, non-secondary pollution, can continuity operation, the advantages of floor space is small, be widely used in difficult degradation industry The treatment of waste water, high-level oxidation technology provides a preferable approach for the treatment of biochemical treatment of industrial wastewater Tailwater Depth.
Catalytic ozonation is a kind of advanced oxidation technology that developed recently gets up, and ozone is promoted in ozonation Molecule is decomposed, to produce strong oxidative free radical-hydroxyl radical free radical reinforcing ozonisation performance, the polluter in degrading waste water.Mesh Before, catalytic ozonation is preferable to contaminant-removal properties because of it, is widely used to advanced treatment of industrial waste water.But business Industry catalyst has that treatment effeciency is low during catalytic ozonation, is difficult to.
The content of the invention
For the deficiency of current commercial catalysts, the present invention provides a kind of charcoal based composite catalyst and preparation method thereof and answers With the catalyst has the features such as catalysis activity high, excellent adsorption/desorption performance, Stability Analysis of Structures, easy preparation, O3 catalytic oxidation Stable effluent quality reaches one-level A standards after the biochemical unit tail water such as treatment paper waste, dyeing waste water, and in industrial wastewater Specific pollutant has excellent removal capacity, effectively reduces water outlet ecological risk.
A kind of charcoal based composite catalyst, with graininess cocoanut active charcoal as carrier, loads Fe types or TiO2Type catalyst；
Described carrier-particle cocoanut active charcoal particle size range is 0.6-0.9mm；
Described Fe types or TiO2Type catalyst quality relative content is controlled 5%, and in solid granular, particle diameter is grade；
Fe types or TiO on the catalyst2Type catalyst granules is evenly distributed on activated carbon surface.
A kind of preparation method of described charcoal based composite catalyst, comprises the following steps：
(1) by the granular activated carbon of cocoanut active charcoal crushing and screening particle size range 0.6-0.9mm；
(2) activated carbon that will have been screened carries out cleaning-drying-alkali cleaning-pickling-cleaning-drying activation；
(3) by Fe types or TiO2Type catalyst is ground, and adds deionized water to be configured to supersaturated suspension, and period is at the uniform velocity Stirring；
(4) compound carbon base catalyst is prepared using excessive infusion process, the absorbent charcoal carrier that step (2) has been activated is placed in step (3) adsorbed in the supersaturated suspension for having configured, low rate mixing, filtered off moisture, drying, most obtained charcoal through high-temperature roasting afterwards Based composite catalyst.
Described step (2) carries out alkali cleaning from the NaOH solution of mass percentage concentration 10%, from mass percentage concentration 10% HNO3Solution carries out pickling, is cleaned using deionized water before pickling, while ultrasound 5min.
Described step (4) sintering temperature is 550 DEG C, roasting time 2 hours.
A kind of purposes of described charcoal based composite catalyst, catalytic ozonation advanced treatment of industrial wastewater.
Described industrial wastewater is paper-making industrial waste water.
Advantages of the present invention：
Preparation method is simple of the invention, catalyst activity is high, good treatment efficiency, the rate of recovery are high and to pollutant removal Can be good.Especially to Sewage Plant (station) secondary biochemical treatment tail water high treating effect, colourity, COD removal capacities are respectively reached 92%th, more than 70%, effluent COD concentration stabilization has good within 50mg/L for materials such as the esters in waste water, phenols etc. Removal capacity, while catalyst recovery yield stabilization more than 92%.
Specific embodiment
Embodiment 1
Particle cocoanut active charcoal (particle size range is 0.6-0.9mm) is weighed to be placed in deionized water rinsing removal ash content in beaker, dry It is dry, it is soaked in the NaOH solution of mass percentage concentration 10% and is removed oil stain, constantly it is slowly stirred in immersion process, deionization Water is repeatedly rinsed, and is placed on ultrasound 5 minutes in ultrasonic cleaning machine, then be dipped in 10% HNO32 h in solution, deionization is rinsed Afterwards, in 105 DEG C of drying.Weigh excessive Fe type catalyst grind addition beaker in（Fe types catalyst can using commercial source or Person makes by oneself, and those skilled in the art can be with unrestricted choice）, add deionized water to be configured to suspension, then dry work will be activated Property charcoal be placed in beaker, low rate mixing 1h, filter off moisture, drying, repeat 3 times.By the final composite catalyst for preparing Calcination activation is carried out in 550 DEG C of Muffle furnaces.After filtering off impurity through screen cloth, Fe type charcoal based composite catalysts are obtained.
It is 7.8-8.2, ozone concentration 6mg/L, catalyst 5g/L, 25 DEG C of reaction temperature, reaction time 60min in pH, urges Agent sintering temperature is under the conditions of 550 DEG C, the Fe type charcoal based composite catalysts of preparation are to paper waste biochemical tail water ozone oxidation Preferably, respectively up to 92.0%, 71.3%, effluent COD concentration is down to 33mg/L to process performance for colourity, COD clearances, meets《Slurrying Paper industry water pollution discharge standard》(GB3544-2008) one-level A (<50mg/L) require.
Fe type charcoal based composite catalysts are directly recovered by filtration after waste water has been processed, and can be used for again after being dried Use.
Embodiment 2
Particle cocoanut active charcoal (particle size range is 0.6-0.9mm) is weighed to be placed in deionized water rinsing removal ash content in beaker, dry It is dry, it is soaked in the NaOH solution of mass percentage concentration 10% and is removed oil stain, constantly it is slowly stirred in immersion process, deionization Water is repeatedly rinsed, and is placed on ultrasound 5 minutes in ultrasonic cleaning machine, then be dipped in 10% HNO32 h in solution, deionization is rinsed Afterwards, in 105 DEG C of drying.Weigh excessive TiO2Type catalyst is ground in addition beaker（TiO2Type catalyst can using business come Source or self-control, those skilled in the art can be with unrestricted choices）, add deionized water to be configured to suspension, then take activation drying Activated carbon be placed in beaker, low rate mixing 1h, filter off moisture, drying, repeat 3 times.Final the compound of preparation is urged Agent carries out calcination activation in 550 DEG C of Muffle furnaces.After filtering off impurity through screen cloth, Ti/GC composite catalysts are obtained.
It it is 7.8-8.2, composite catalyst 5g/L, ozone concentration 6mg/L, 25 DEG C of reaction temperature, reaction time in pH 60min, catalyst sintering temperature be 550 DEG C under the conditions of, TiO2Ozone oxygen of the type composite catalyst to paper waste biochemical tail water Change process performance is excellent, and, respectively up to 93.8%, 61.6%, effluent COD concentration is down to 40mg/L for colourity, COD clearances, meets《System Pulp and paper industry water pollution discharge standard》(GB3544-2008) one-level A (<50mg/L) require.
TiO2Type charcoal based composite catalyst is directly recovered by filtration after waste water has been processed, and can be used for again after being dried Use.

Claims (6)

1. a kind of charcoal based composite catalyst, it is characterised in that with graininess cocoanut active charcoal as carrier, loads Fe types or TiO2Type Catalyst；
Described carrier-particle cocoanut active charcoal particle size range is 0.6-0.9mm；
Described Fe types or TiO2Type catalyst quality relative content is controlled 5%, and in solid granular, particle diameter is grade；
Fe types or TiO on the catalyst2Type catalyst granules is evenly distributed on activated carbon surface.
2. a kind of preparation method of charcoal based composite catalyst as claimed in claim 1, it is characterised in that comprise the following steps：
(1) by the granular activated carbon of cocoanut active charcoal crushing and screening particle size range 0.6-0.9mm；
(2) activated carbon that will have been screened carries out cleaning-drying-alkali cleaning-pickling-cleaning-drying activation；
(3) by Fe types or TiO2Type catalyst is ground, and adds deionized water to be configured to supersaturated suspension, and period at the uniform velocity stirs Mix；
(4) compound carbon base catalyst is prepared using excessive infusion process, the absorbent charcoal carrier that step (2) has been activated is placed in step (3) adsorbed in the supersaturated suspension for having configured, low rate mixing, filtered off moisture, drying, most obtained charcoal through high-temperature roasting afterwards Based composite catalyst.
3. preparation method as claimed in claim 2, it is characterised in that described step (2) selects mass percentage concentration 10% NaOH solution carries out alkali cleaning, from the HNO of mass percentage concentration 10%3Solution carries out pickling, is cleaned using deionized water before pickling, While ultrasound 5min.
4. preparation method as claimed in claim 2, it is characterised in that described step (4) sintering temperature is 550 DEG C, roasting Time 2 h.
5. a kind of purposes of charcoal based composite catalyst as claimed in claim 1, it is characterised in that catalytic ozonation advanced treating Industrial wastewater.
6. purposes as claimed in claim 5, it is characterised in that described industrial wastewater is paper-making industrial waste water.
CN201710027813.3A 2017-01-16 2017-01-16 A kind of charcoal based composite catalyst and its preparation method and application Pending CN106799230A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110252271A (en) * 2019-06-14 2019-09-20 深圳市天浩洋环保股份有限公司 A kind of preparation method of photochemical catalyst
CN110817870A (en) * 2018-08-14 2020-02-21 北京中科奥水环保工程技术有限公司 Activated carbon production process based on visible light catalytic regeneration

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101492200A (en) * 2009-03-04 2009-07-29 广东工业大学 Method for photoelectrocatalysis oxidization of organic waste water with ozone
CN104841471A (en) * 2015-05-05 2015-08-19 南通职业大学 Method for doping TiO2 and ammonia water modified carrier activated carbon in Fe to prepare Fe-TiO2/N-AC photocatalyst
CN105174625A (en) * 2015-09-17 2015-12-23 成都中机盈科科技有限公司 Novel ozone-biological activated carbon integrated advanced wastewater treatment method and device
CN105621589A (en) * 2016-01-20 2016-06-01 华东理工大学 Treatment method and treatment system for removing SCOD (soluble chemical oxygen demand) in coking nanofiltration concentrated water

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101492200A (en) * 2009-03-04 2009-07-29 广东工业大学 Method for photoelectrocatalysis oxidization of organic waste water with ozone
CN104841471A (en) * 2015-05-05 2015-08-19 南通职业大学 Method for doping TiO2 and ammonia water modified carrier activated carbon in Fe to prepare Fe-TiO2/N-AC photocatalyst
CN105174625A (en) * 2015-09-17 2015-12-23 成都中机盈科科技有限公司 Novel ozone-biological activated carbon integrated advanced wastewater treatment method and device
CN105621589A (en) * 2016-01-20 2016-06-01 华东理工大学 Treatment method and treatment system for removing SCOD (soluble chemical oxygen demand) in coking nanofiltration concentrated water

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
杨帅等: "活性炭负载纳米二氧化钛光催化性能的研究", 《科学时代》 *
洪浩峰等: "活性炭负载催化剂臭氧催化氧化处理印染废水研究", 《工业用水与废水》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110817870A (en) * 2018-08-14 2020-02-21 北京中科奥水环保工程技术有限公司 Activated carbon production process based on visible light catalytic regeneration
CN110252271A (en) * 2019-06-14 2019-09-20 深圳市天浩洋环保股份有限公司 A kind of preparation method of photochemical catalyst

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Application publication date: 20170606