CN110479372A - The atom level method for preparing catalyst that a kind of organic film is carrier room temperature degradation VOCs - Google Patents

The atom level method for preparing catalyst that a kind of organic film is carrier room temperature degradation VOCs Download PDF

Info

Publication number
CN110479372A
CN110479372A CN201910760944.1A CN201910760944A CN110479372A CN 110479372 A CN110479372 A CN 110479372A CN 201910760944 A CN201910760944 A CN 201910760944A CN 110479372 A CN110479372 A CN 110479372A
Authority
CN
China
Prior art keywords
electrostatic spinning
polysulfones
catalyst
atom level
precursor solution
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.)
Granted
Application number
CN201910760944.1A
Other languages
Chinese (zh)
Other versions
CN110479372B (en
Inventor
丁辉
郝子全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201910760944.1A priority Critical patent/CN110479372B/en
Publication of CN110479372A publication Critical patent/CN110479372A/en
Application granted granted Critical
Publication of CN110479372B publication Critical patent/CN110479372B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
    • 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
    • B01D2257/708—Volatile organic compounds V.O.C.'s

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses the atom level method for preparing catalyst that a kind of organic film is carrier room temperature degradation VOCs, comprising the following steps: (1) magnetic agitation and ultrasonic treatment obtain electrostatic spinning precursor solution；(2) electrostatic spinning machine processing electrostatic spinning precursor solution obtains membrane material；(3) vacuum drying treatment membrane material obtains final product atom level Ag/ polysulfones catalyst.Compared with existing catalyst, present invention has an advantage that atom level site catalysts Ag/ polysulfones catalytic performance is good, there is relatively strong anti-poisoning capability, be conducive to react degradation VOCs for a long time；In addition, polysulfones not only contributes to atom dispersion as carrier, and have the advantages that overcome conventional oxide carrier easily by stripping.

Description

The atom level method for preparing catalyst that a kind of organic film is carrier room temperature degradation VOCs
Technical field
The present invention relates to the atom level catalyst systems of method for preparing catalyst more particularly to a kind of constant temperature catalyzing degradation VOCs Preparation Method.
Background technique
Volatile organic compounds (VOCs) is the second largest widely distributed and miscellaneous atmosphere in addition to particulate matter Pollutant, main source have petrochemical industry, oil refining, coating, the decomposition of biomass, pharmaceutical factory, auto industry, textile industry, molten The industries such as agent technique, cleaning products.
Compared to room-temperature catalytic oxidation technology, currently used various VOCs processing techniques have energy consumption height, processing cost High, generation secondary pollution problems.And room-temperature catalytic oxidation technology assists without high temperature, is not necessarily to electrion, is not necessarily to ultraviolet light Strengthen, the catalytic degradation reaction of VOCs can be carried out at normal temperatures and pressures, with investment cost is low, operating cost is low, safety system The high advantage of number.
Film is the material with Selective Separation function, using film as separating medium, by applying a promotion on film both sides Power, make feed side different component selectivity by film, to achieve the purpose that separating-purifying.Membrane technology is mainly used at sewage Reason is commonly used in two stage treatment activated sludge effluent, or film processing system is placed directly within biochemistry pool, instead of original secondary settling tank, The links such as flocculation sedimentation tank, after embrane method technological transformation, traditional waste water treatment process can directly produce high-quality again Unboiled water.Since organic membrane filter precision is higher, film is selectively larger, is widely used in recycling of water resource field and separates with industrial material Equal fields.
Developing using single atom or several atoms as the atom level site catalysts of active site is conventional catalyst The great-leap-forward of incineration technology is promoted, and catalytic reaction temperature, energy saving can be greatly reduced.Currently, having atom reported in the literature Grade catalyst carrier mainly has TiO2、CeO2, manganese oxide, iron oxide, activated carbon fiber etc., but it is monatomic more liquid, urging Change and tend to assemble in reaction process, and catalyst is easily blown by air-flow during catalytic evaluation, influences catalytic activity.
Summary of the invention
The purpose of the present invention is to overcome the disadvantages of the prior art, and providing a kind of organic film is that carrier room temperature degrades VOCs's Atom level method for preparing catalyst has stronger stability with atom level site catalysts prepared by this method, with this The VOCs degradation reaction temperature that catalyst carries out is low, and safe and efficient low cost, catalytic efficiency is significantly promoted.
The technical scheme is that
A kind of organic film of the invention is the atom level method for preparing catalyst of carrier room temperature degradation VOCs, including following step It is rapid:
Step 1: by analysis pure N, N- bis- is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:(35-45) In methylformamide, magnetic agitation 12-15h, obtains solution A at 20-30 DEG C；It then, will be 1:(33- with polysulfones mass ratio 50) AgNO3Crystal powder is added in solution A, is ultrasonically treated 1.5-2h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV High-voltage electricity, electrostatic spinning precursor solution B charging rate are 0.8-1mL/h, in the electrostatic spinning treatment process controlled at 21-25 DEG C, relative humidity 40-50%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 10- in 50-60 DEG C of vacuum drying oven 12h obtains the atom level Ag/ polysulfones catalyst with catalytic performance.
Present invention has an advantage that atom level site catalysts Ag/ polysulfones catalytic performance is good, there is relatively strong anti-poisoning energy Power is conducive to react degradation VOCs for a long time；In addition, polysulfones not only contributes to atom dispersion as carrier, and has and overcome Conventional oxide carrier easily by stripping the advantages of.
Detailed description of the invention
Fig. 1 is the process schematic that electrostatic spinning technique of the present invention prepares Ag/ polysulfones catalyst.
Specific embodiment
Below in conjunction with case study on implementation of the present invention, the technical solution in case study on implementation of the present invention is carried out clear, complete Description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on this The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
Of the invention the reaction mechanism is as follows: Ag atom is carried on polysulfones surface and its pore structure, and Ag is to VOCs molecule And O2Have suction-operated, in wet environment, Ag atom due to its d track center of gravity energy level raising, to the O of absorption2It lives Change, generates OH isoreactivity free radical, and then react with VOCs molecule, promote the progress of catalytic process.
Based on the above mechanism, a kind of organic film of the invention is the atom level catalyst preparation side of carrier room temperature degradation VOCs Method, comprising the following steps:
Step 1: by analysis pure N, N- bis- is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:(35-45) In methylformamide, magnetic agitation 12-15h, obtains solution A at 20-30 DEG C；It then, will be 1:(33- with polysulfones mass ratio 50) AgNO3Crystal powder is added in solution A, is ultrasonically treated 1.5-2h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV High-voltage electricity, electrostatic spinning precursor solution B charging rate are 0.8-1mL/h, in the electrostatic spinning treatment process controlled at 21-25 DEG C, relative humidity 40-50%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 10- in 50-60 DEG C of vacuum drying oven 12h obtains the atom level Ag/ polysulfones catalyst with catalytic performance.
Embodiment 1
Step 1: by the pure N of analysis, N- dimethyl methyl is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:35 In amide, magnetic agitation 12h, obtains solution A at 20 DEG C；Then, by the AgNO with polysulfones mass ratio for 1:333Crystal powder It is added in solution A, is ultrasonically treated 1.5h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV High-voltage electricity, electrostatic spinning precursor solution B charging rate is 0.8mL/h, controlled at 21 in the electrostatic spinning treatment process DEG C, relative humidity 40%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 10h in 50 DEG C of vacuum drying ovens, is obtained Atom level Ag/ polysulfones catalyst with catalytic performance.
The evaluation of catalyst oxidation effectiveness carries out in VOCs degradation reaction device, and the present embodiment is packed into reactor and is made Catalyst 1g to be measured, for the reaction of room-temperature catalytic oxidation acetone under Oxygen Condition, reaction condition are as follows: acetone concentration is 500mg/m3, air speed 20000h-1, the concentration of reaction front and back acetone is detected with gas chromatograph.The catalytic performance of catalyst, is shown in Table 1.
Embodiment 2
Step 1: by the pure N of analysis, N- dimethyl methyl is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:40 In amide, magnetic agitation 13h, obtains solution A at 25 DEG C；Then, by the AgNO with polysulfones mass ratio for 1:343Crystal powder It is added in solution A, is ultrasonically treated 1.8h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV High-voltage electricity, electrostatic spinning precursor solution B charging rate is 0.9mL/h, controlled at 22 in the electrostatic spinning treatment process DEG C, relative humidity 45%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 11h in 55 DEG C of vacuum drying ovens, is obtained Atom level Ag/ polysulfones catalyst with catalytic performance.
The evaluation of catalyst oxidation effectiveness carries out in VOCs degradation reaction device, and the present embodiment is packed into reactor and is made Catalyst 1g to be measured, for the reaction of room-temperature catalytic oxidation acetone under Oxygen Condition, reaction condition are as follows: acetone concentration is 500mg/m3, air speed 20000h-1, the concentration of reaction front and back acetone is detected with gas chromatograph.The catalytic performance of catalyst, is shown in Table 1.
Embodiment 3
Step 1: by the pure N of analysis, N- dimethyl methyl is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:40 In amide, magnetic agitation 14h, obtains solution A at 25 DEG C；Then, by the AgNO with polysulfones mass ratio for 1:403Crystal powder It is added in solution A, is ultrasonically treated 1.7h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV High-voltage electricity, electrostatic spinning precursor solution B charging rate is 0.9mL/h, controlled at 24 in the electrostatic spinning treatment process DEG C, relative humidity 45%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 11h in 55 DEG C of vacuum drying ovens, is obtained Atom level Ag/ polysulfones catalyst with catalytic performance.
The evaluation of catalyst oxidation effectiveness carries out in VOCs degradation reaction device, and the present embodiment is packed into reactor and is made Catalyst 1g to be measured, for the reaction of room-temperature catalytic oxidation acetone under Oxygen Condition, reaction condition are as follows: acetone concentration is 500mg/m3, air speed 20000h-1, the concentration of reaction front and back acetone is detected with gas chromatograph.The catalytic performance of catalyst, is shown in Table 1.
Embodiment 4
Step 1: by the pure N of analysis, N- dimethyl methyl is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:45 In amide, magnetic agitation 15h, obtains solution A at 30 DEG C；Then, by the AgNO with polysulfones mass ratio for 1:503Crystal powder It is added in solution A, is ultrasonically treated 2h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV High-voltage electricity, electrostatic spinning precursor solution B charging rate is 1mL/h, controlled at 25 DEG C in the electrostatic spinning treatment process, Relative humidity is 50%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 12h in 60 DEG C of vacuum drying ovens, is obtained Atom level Ag/ polysulfones catalyst with catalytic performance.
The evaluation of catalyst oxidation effectiveness carries out in VOCs degradation reaction device, and the present embodiment is packed into reactor and is made Catalyst 1g to be measured, for the reaction of room-temperature catalytic oxidation acetone under Oxygen Condition, reaction condition are as follows: acetone concentration is 500mg/m3, air speed 20000h-1, the concentration of reaction front and back acetone is detected with gas chromatograph.The catalytic performance of catalyst, is shown in Table 1.
Table 1Ag/ polysulfones atom level site catalysts are catalyzed acetone oxidation reactivity worth

Claims (1)

1. the atom level method for preparing catalyst that a kind of organic film is carrier room temperature degradation VOCs, it is characterised in that including following step It is rapid:
Step 1: by the pure N of analysis, N- dimethyl is dissolved in N,N-dimethylformamide mass ratio for the polysulfones of 1:35-1:45 In formamide, magnetic agitation 12-15h, obtains solution A at 20-30 DEG C；It then, will be 1:33-1:50's with polysulfones mass ratio AgNO3Crystal powder is added in solution A, is ultrasonically treated 1.5-2h, obtains uniformly mixed electrostatic spinning precursor solution B；
Step 2: obtaining membrane material using electrostatic spinning machine processing electrostatic spinning precursor solution B, processing voltage is 15kV high pressure Electricity, electrostatic spinning precursor solution B charging rate is 0.8-1mL/h, controlled at 21-25 in the electrostatic spinning treatment process DEG C, relative humidity 40-50%；
Step 3: the membrane material obtained after being handled using electrostatic spinning machine dry 10-12h in 50-60 DEG C of vacuum drying oven, is obtained To the atom level Ag/ polysulfones catalyst with catalytic performance.
CN201910760944.1A 2019-08-16 2019-08-16 Preparation method of atomic-scale catalyst for normal-temperature degradation of VOCs (volatile organic compounds) by taking organic film as carrier Active CN110479372B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910760944.1A CN110479372B (en) 2019-08-16 2019-08-16 Preparation method of atomic-scale catalyst for normal-temperature degradation of VOCs (volatile organic compounds) by taking organic film as carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910760944.1A CN110479372B (en) 2019-08-16 2019-08-16 Preparation method of atomic-scale catalyst for normal-temperature degradation of VOCs (volatile organic compounds) by taking organic film as carrier

Publications (2)

Publication Number Publication Date
CN110479372A true CN110479372A (en) 2019-11-22
CN110479372B CN110479372B (en) 2022-04-29

Family

ID=68551901

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910760944.1A Active CN110479372B (en) 2019-08-16 2019-08-16 Preparation method of atomic-scale catalyst for normal-temperature degradation of VOCs (volatile organic compounds) by taking organic film as carrier

Country Status (1)

Country Link
CN (1) CN110479372B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101455975A (en) * 2007-12-14 2009-06-17 北京化工大学 Porous carbon nanometer fiber-supported nanocrystal catalyst and preparation method thereof
KR20120097969A (en) * 2011-02-28 2012-09-05 전남대학교산학협력단 Ag-photocatalyst-carbon nano fiber complex, method for producing the same, and filter comprising the same
CN104984753A (en) * 2015-07-09 2015-10-21 华南理工大学 Cellulose acetate electrostatic-spun film loaded AgCl-Ag catalyst and preparation method and application thereof
CN106268376A (en) * 2015-05-26 2017-01-04 华东理工大学 A kind of inner surface load silver particles doughnut polysulphones hyperfiltration membrane and preparation method thereof
CN109012164A (en) * 2018-09-04 2018-12-18 广州华园科技有限公司 It is a kind of can room temperature decomposing formaldehyde micro/nano fibrous membrane material and its preparation method and application
CN109012659A (en) * 2018-07-19 2018-12-18 天津大学 A kind of preparation method of the monatomic catalyst of activated carbon fibre of the carried noble metal for constant temperature catalyzing degradation VOCs
CN109603820A (en) * 2019-01-09 2019-04-12 天津大学 The monatomic method for preparing catalyst of room temperature degradation of formaldehyde under a kind of Oxygen Condition
CN109939712A (en) * 2019-03-16 2019-06-28 北京氦舶科技有限责任公司 A kind of monatomic noble metal catalyst and its preparation and the application in room temperature catalytic oxidation formaldehyde
CN109957882A (en) * 2017-12-26 2019-07-02 Tcl集团股份有限公司 A kind of nano fibrous membrane and preparation method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101455975A (en) * 2007-12-14 2009-06-17 北京化工大学 Porous carbon nanometer fiber-supported nanocrystal catalyst and preparation method thereof
KR20120097969A (en) * 2011-02-28 2012-09-05 전남대학교산학협력단 Ag-photocatalyst-carbon nano fiber complex, method for producing the same, and filter comprising the same
CN106268376A (en) * 2015-05-26 2017-01-04 华东理工大学 A kind of inner surface load silver particles doughnut polysulphones hyperfiltration membrane and preparation method thereof
CN104984753A (en) * 2015-07-09 2015-10-21 华南理工大学 Cellulose acetate electrostatic-spun film loaded AgCl-Ag catalyst and preparation method and application thereof
CN109957882A (en) * 2017-12-26 2019-07-02 Tcl集团股份有限公司 A kind of nano fibrous membrane and preparation method thereof
CN109012659A (en) * 2018-07-19 2018-12-18 天津大学 A kind of preparation method of the monatomic catalyst of activated carbon fibre of the carried noble metal for constant temperature catalyzing degradation VOCs
CN109012164A (en) * 2018-09-04 2018-12-18 广州华园科技有限公司 It is a kind of can room temperature decomposing formaldehyde micro/nano fibrous membrane material and its preparation method and application
CN109603820A (en) * 2019-01-09 2019-04-12 天津大学 The monatomic method for preparing catalyst of room temperature degradation of formaldehyde under a kind of Oxygen Condition
CN109939712A (en) * 2019-03-16 2019-06-28 北京氦舶科技有限责任公司 A kind of monatomic noble metal catalyst and its preparation and the application in room temperature catalytic oxidation formaldehyde

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WEN-JI JIN等: ""Preparation of Polymer Nanofibers Containing Silver Nanoparticles by Using Poly(N-vinylpyrrolidone)"", 《MACROMOL. RAPID COMMUN.》 *
陈观文等编: "《膜技术新进展与工程应用》", 31 August 2013, 国防工业出版社 *

Also Published As

Publication number Publication date
CN110479372B (en) 2022-04-29

Similar Documents

Publication Publication Date Title
Chin et al. Factors affecting the performance of a low-pressure submerged membrane photocatalytic reactor
Molinari et al. Degradation of the drugs Gemfibrozil and Tamoxifen in pressurized and de-pressurized membrane photoreactors using suspended polycrystalline TiO2 as catalyst
CN104532479B (en) A kind of photocatalytic fiber cellulose fiber matrix activated carbon nano-fiber composite film and preparation method thereof
CN103979631B (en) A kind of absorption-catalytic oxidation degradation method of phenol in wastewater
CN104828926A (en) Wastewater advanced treatment equipment and method for catalytic ozonation membrane reactor
CN104108783B (en) A kind of fast, the method for micro-benzopyrene in efficient, degradation selectivity water
CN105056743A (en) VOCs waste gas treatment method and device
CN205627430U (en) Dedicated high -efficient environmental protection tail gas processing apparatus of factory sprays paint
CN112321026A (en) Wastewater treatment device and method by coupling ozone micro-nano bubble catalytic oxidation technology with ceramic membrane
CN106475083A (en) The preparation method of graphene oxide/optically catalytic TiO 2 composite material precursor
CN205241447U (en) Device suitable for printing and dyeing wastewater advanced treatment
CN205517253U (en) Accurate adsorber
CN101380569B (en) Preparation method of three-dimensional ordered macropore carbon loaded with titanium dioxide particles and application method thereof
CN110479372A (en) The atom level method for preparing catalyst that a kind of organic film is carrier room temperature degradation VOCs
CN102372378A (en) Treatment method of waste water produced by adopting castor oil to prepare decanedioic acid
CN106166438A (en) A kind of method and device of photodissociation chlorine aqueous solution induced radical removing hydrogen sulfide
CN109758889A (en) A kind of liquor industry workshop VOCs waste gas processing method
CN110193337A (en) A kind of photochemical catalyst fiber felt fixed-bed type Photoreactor and preparation method thereof
CN214570904U (en) Tower plate type photocatalytic membrane reactor
CN213231883U (en) Device for treating wastewater based on physical adsorption coupling photo-Fenton oxidation technology
CN206328268U (en) A kind of industrial organic waste water processing unit
CN209530488U (en) A kind of integration deodoration system
CN103319055B (en) Processing device for removing phenol and naphthalene in sewage and method thereof
CN218453985U (en) Abnormal wastewater treatment device for benzoic acid production
CN207294500U (en) A kind of New Type of Sewage Treatment System of combination membrane bioreactor

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
GR01 Patent grant
GR01 Patent grant