CN107857343A - A kind of method based on compound particle electrode degrading high salt waste water from dyestuff - Google Patents

A kind of method based on compound particle electrode degrading high salt waste water from dyestuff Download PDF

Info

Publication number
CN107857343A
CN107857343A CN201711139418.0A CN201711139418A CN107857343A CN 107857343 A CN107857343 A CN 107857343A CN 201711139418 A CN201711139418 A CN 201711139418A CN 107857343 A CN107857343 A CN 107857343A
Authority
CN
China
Prior art keywords
waste water
dyestuff
compound particle
particle electrode
salt waste
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.)
Pending
Application number
CN201711139418.0A
Other languages
Chinese (zh)
Inventor
包红旭
李良玉
张欣
苏弘治
张馨月
杨华
张�浩
吕志忠
杨雨萌
李丽丹
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.)
Liaoning University
Original Assignee
Liaoning 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 Liaoning University filed Critical Liaoning University
Priority to CN201711139418.0A priority Critical patent/CN107857343A/en
Publication of CN107857343A publication Critical patent/CN107857343A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46133Electrodes characterised by the material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/308Dyes; Colorants; Fluorescent agents

Abstract

The present invention relates to a kind of method based on compound particle electrode degrading high salt waste water from dyestuff.The present invention is by by TiO2The three-dimensional electrodes system that/haydite graphite compound particle electrode, titanium net, netted stainless steel are formed is put into the container for filling waste water, provides unidirectional square-wave voltage with the pulse power, uviol lamp provides ultraviolet source, Na2SO4Under conditions of solution is electrolyte, illumination height 16cm and pH are 5.0,60min photoelectric catalysis degrading is carried out to high salt waste water from dyestuff.The present invention use pulse power three-diemsnional electrode, relative to dc source three-diemsnional electrode, can not only improve the clearance to COD and phenol, also more energy efficient, repolarization degree is higher, it is more thorough to degrade;There is obvious economic benefit, and non-secondary pollution in processing procedure using present invention processing high salt waste water from dyestuff, it is not necessary to use, play the role of in terms of waste water control important with other process integrations.

Description

A kind of method based on compound particle electrode degrading high salt waste water from dyestuff
Technical field
The present invention relates to a kind of method based on compound particle electrode degrading high salt waste water from dyestuff, is printed mainly for coming from The high salt waste water from dyestuff of dyer's industry, belongs to water treatment field.
Background technology
In recent years, as the rapid development of printing and dyeing industry, New-type adjuvant, dyestuff, finishing agent are widely used, dyestuff is caused Waste water quality change greatly, the phenomenon getting worse of color burn, biodegradability reduction, and contained difficult degradation is poisonous in waste water, has Machine composition is more and more.The processing method of dyeing waste water typically has:Physical, chemical method, bioanalysis and its method for combined use, its In, Physical cost is low, and decolorizing effect is preferable, but subsequent treatment process is more complicated, is also easy to produce secondary pollution;Chemical method is to carry The effective way of high sewage treating efficiency, but cost is high;The processing cost of bioanalysis is low, but to the degradation effect of dye molecule For difference, it is necessary to be handled with flocculation sediment, sludge produces secondary pollution.As can be seen here, conventional method of wastewater treatment has been difficult to make Dyeing waste water is purified, it is necessary to find the method for new efficient degradation waste water.Electro-catalytic oxidation technology is as advanced oxidation form One kind, there is the advantages such as catalysis is stable, catalysis electrode service life is long, simple to operate and operating cost is low, in processing waste water side The application in face is more and more important.Electrode for electro-catalytic oxidation technology mainly has traditional two-dimensional electrode and newest three-dimensional electricity Pole.Traditional two-dimensional electrode is compared to, three-diemsnional electrode has higher the catalysis oxidation efficiency and lower energy consumption, can not only be high Effect ground processing high salt waste water from dyestuff, carries out decolorization, moreover it is possible to effectively that the organic pollution in waste water is complete to waste water from dyestuff Full mineralising, make organic matter degradation to no toxicity.
The content of the invention
The present invention proposes a kind of method based on compound particle electrode degrading high salt waste water from dyestuff, for high salt waste water from dyestuff Concentration is high, colourity is deep, COD (COD) is high, in acid and difficult degradation the features such as, by the way that netted stainless steel and positive pole are connected Connect and be used as negative plate as the connection of positive plate, titanium net and negative pole, by TiO2/ haydite-graphite particle electrode is placed between the two poles of the earth, Photoelectric catalysis degrading is carried out to high salt waste water from dyestuff under the ultraviolet light of unidirectional square-wave voltage and certain altitude.Using this method Processing high salt waste water from dyestuff can not only effectively utilize solid waste and technique is simple, it is high to reduce energy consumption, percent of decolourization, it is fast to degrade Degree is fast.
The technical solution adopted by the present invention is:A kind of method based on compound particle electrode degrading high salt waste water from dyestuff, bag Include following steps:Positive terminal and negative pole end are placed in reaction vessel, compound particle electrode is placed between positive terminal and negative pole end, Form three-diemsnional electrode;Waste water containing high salt dyestuff and electrolyte solution are placed in reaction vessel, regulation pH is 3-9, in arteries and veins Rush under the unidirectional square-wave voltage of power supply, ultra violet lamp 50-70min.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, described positive terminal by it is netted not Rust steel connects and composes with positive pole;Described negative pole end is connected and composed by titanium net and negative pole;Described compound particle electrode is TiO2/ Haydite-graphite compound particle electrode.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, described TiO2/ haydite-graphite Compound particle electrode, in mass ratio, TiO2/ haydite:Graphite=3:2.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, TiO2The preparation method of/haydite Comprise the following steps:By volume 1:1:20, by Ti (OBu)4、TiCl3It is well mixed with methanol, under nitrogen protection, uses magnetic force Agitator stirs 2h under rotating speed 200-300r/min, obtains translucent mixed liquor;Translucent mixed liquor is transferred in ice bath and continued 24h is stirred, while NaOH is added thereto per 30min, each NaOH addition is that translucent mixed liquor adds per 110mL 0.2mL concentration is 1mol/L NaOH solution, obtains colloidal sol;Then TiO is pressed2It is 30wt% with haydite mass ratio, adds into colloidal sol Enter haydite;Ultrasonic vibration is transferred to after 2 days in 70 DEG C of water-bath, dries 150-200min after gelation at 110 DEG C;Finally exist 5h is heat-treated at 400-800 DEG C, is cooled down, is cleaned, drying, obtains TiO2/ haydite.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, described high salt dyestuff is methylene Base is blue.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, described electrolyte solution is dense Spend the Na for 2mol/L2SO4Solution.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, it is preferable that regulation pH is 5.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, the described pulse power are unidirectionally square Wave voltage is 1.5V, and the power of uviol lamp is 20W.
A kind of above-mentioned method based on compound particle electrode degrading high salt waste water from dyestuff, the height of uviol lamp is, ultraviolet Lamp is apart from high salt waste water from dyestuff and the mixing liquid level 10-16cm of electrolyte solution.It is preferred that uviol lamp apart from high salt waste water from dyestuff and The mixing liquid level 16cm of electrolyte solution.
The beneficial effects of the invention are as follows:The present invention is applied in the processing of high salt waste water from dyestuff, to high salt waste water from dyestuff Decolourize, degrade etc. has good treatment effect, is more saved than dc source power supply, fast to the processing speed of waste water, Water pollution handling rate is high, non-secondary pollution, it is not necessary to is used with other process integrations.
Brief description of the drawings
Fig. 1 is the reaction unit top view of the present invention.
1:Hollow cylindrical reaction vessel;2:TiO2/ haydites-graphite particle electrode;3:Titanium net circle;4:Netted stainless steel Circle.
Fig. 2 is the stereogram of the reaction vessel of the present invention.
Fig. 3 is stainless steel coil and titanium net circle schematic diagram.
Fig. 4 is degradation effect of the different ultraviolet light height to high salt waste water from dyestuff.
Fig. 5 is degradation effects of the different pH to high salt waste water from dyestuff.
Fig. 6 is degradation effect comparison diagram of the present invention to high salt waste water from dyestuff.
Embodiment
A kind of method based on compound particle electrode degrading high salt waste water from dyestuff of embodiment
(1) making of three-diemsnional electrode
1st, haydite is made
(1) river bottom mud and 75%-85% domestic sludge that moisture content is more than 95% are subjected to mechanical dehydration respectively, Carry out drying drying at 110 DEG C respectively again, river bottom mud dries 24h, domestic sludge dries 15h, respectively obtains desiccation river course Bed mud and desiccation domestic sludge.
(2) using desiccation river bottom mud and desiccation domestic sludge as major ingredient, using gangue and house refuse slag as auxiliary material, water Glass prepares haydite as binding agent.
By weight percentage, desiccation river bottom mud 30%-50%, desiccation domestic sludge 10%-20%, gangue 20%- 30%th, house refuse slag 10%-15%, waterglass compare 5%-10%.
(3) desiccation river bottom mud and desiccation domestic sludge are distinguished into impurity elimination, broken, grinding.
(4) desiccation river bottom mud, desiccation domestic sludge, gangue, house refuse slag and waterglass are well mixed, obtained To dry blend.
(5) it is 15-26% that moisture content is added water into dry blend, stirs and evenly mixs, obtains wet mixed feed.
(6) at normal temperatures, spherical particle is made in wet mixed feed, obtains raw material ball, sieved with 30-40 the polished standard screens, take sieve Upper thing.
(7) oversize is put into 110 DEG C of insulating boxs and carries out drying 4h.
(8) it is in 400 DEG C -500 DEG C of heating furnace the material after drying to be put into temperature, preheats 20min, most after 5min is calcined at 1000-1200 DEG C, after cooling, obtains haydite.
2nd, TiO is made2/ haydite
After rinsing haydite 2-3 times repeatedly with distilled water, dried in 100 DEG C of baking ovens, it is standby.
Take 5mL Ti (OBu)4、5mL TiCl3It is mixed into 100mL methanol in there-necked flask, is passed through nitrogen and (ensures anaerobism bar Part), 2h is stirred under rotating speed 200-300r/min with magnetic stirring apparatus, obtains translucent mixed liquor.
Translucent mixed liquor is transferred in ice bath and continues to stir 24h, while 0.2mL 1mol/L are added thereto per 30min NaOH solution, obtain colloidal sol.
By TiO2It is 30wt% with haydite mass ratio, haydite is added into colloidal sol;Ultrasonic vibration is transferred to 70 DEG C after 2 days In water-bath, after gelation, 150-200min is dried at 110 DEG C;5h, the rate of heat addition 1 are finally heat-treated at 400-800 DEG C ℃/min;Taken out after natural cooling, cleaned and dried with distilled water, obtain TiO2/ haydite.
3rd, TiO is made2/ haydite-graphite compound particle electrode
After graphite particle is rinsed 2-3 times and dried repeatedly with distilled water, with TiO2/ haydite in mass ratio 2:3 ratio Mixing, produces TiO2/ haydite-graphite compound particle electrode.
(2) high salt dye wastewater degradation method
As shown in Figure 1-Figure 3, netted stainless steel coil 4 is connected with positive pole and is positioned over hollow circuit cylinder shaped reaction as positive terminal Outer ring, titanium net circle 3 in container 1 are connected the inner ring being positioned over as negative pole end in hollow cylindrical reaction vessel 1 with negative pole, TiO2/ haydite-graphite compound particle electrode 2 is positioned between the two poles of the earth as granule electrode.
1st, the irradiation height of ultraviolet lamp is determined
By the high salt waste water from dyestuff of 150mL methylene blues containing 2.5mg/L and 50mL 2mol/L Na2SO4Electrolyte mixes Pour into reaction vessel 1, regulation pH is 5, and absorbance A is measured in the case where wavelength is 664nm using 721E types spectrophotometer0.With 20w uviol lamps are light source, and it is ultraviolet to provide unidirectional square-wave voltage 1.5V, 20W uviol lamp (λ=253.7nm) offer with the pulse power Light source, change uviol lamp and liquid distance between the surface:11.5cm, 13cm, 14.5cm, 16cm, respectively at progress 60min photoelectrocatalysis Reason, then surveys its absorbance A.Percent of decolourization is represented with η.Calculation formula is as follows:
η=(A0-A)/A0× 100%
Wherein:A0The absorbance of methylene blue before degrading is represented, A represents the absorbance of methylene blue after degraded.
As a result it is as shown in Figure 4.From fig. 4, it can be seen that with the increase of irradiation height, degradation rate rise, when irradiation height is During 16cm, degradation rate reaches 90.4%.Therefore preferably, the optimal irradiation of ultraviolet lamp is highly 16cm to the present invention.
2nd, pH value is determined
By the high salt waste water from dyestuff of 150mL methylene blues containing 2.5mg/L and 50mL 2mol/L Na2SO4Electrolyte mixes Import in reaction vessel 1, be by the pH value that sulfuric acid and sodium hydroxide change solution are added into solution:3.0、5.0、7.0、 9.0th, 11.0, measure absorbance A in the case where wavelength is 664nm using 721E types spectrophotometer0.Using 20w uviol lamps as light source, with The pulse power provides unidirectional square-wave voltage 1.5V, 20W uviol lamp (λ=253.7nm) and provides ultraviolet source, and illumination is highly fixed In 16cm, 60min three-dimensional photoelectrocatalysis processing is carried out respectively, then surveys its absorbance A.Calculate percent of decolourization η.
As a result it is as shown in Figure 5.As seen from Figure 5, when pH is 3, degradation rate 74.97%, when pH is 5, degradation rate reaches 90.4%, with pH rise, degradation rate is gradually reduced.Therefore the preferred regulation pH value of the present invention is 5.0.
Embodiment 2
The woolen spinning waste water for choosing the wool manufacturing printing and dyeing mill in certain city is degraded, woolen spinning waste water quality detection such as table 1
Table 1
Degraded for the methylene blue detected in factory's dyeing waste water:Netted stainless steel coil is connected work with positive pole The outer ring that is positioned over for positive pole in hollow cylindrical reaction vessel, titanium net circle are connected with negative pole and are positioned over hollow circuit cylinder as negative pole Inner ring in shaped reaction container, TiO2/ haydite-graphite is positioned between the two poles of the earth as compound particle electrode.Take the 150mL waste water With 50mL 2mol/L Na2SO4Solution mixes, and is placed in hollow cylindrical reaction vessel 1, and it is molten that sulfuric acid is added dropwise into reaction vessel Liquid, it is 5.0 that processing environment is adjusted into pH, stops that sulfuric acid is added dropwise;Reaction vessel is placed under 20w uviol lamps (λ=253.7nm), with The unidirectional square-wave voltage 1.5V of pulse power offer, after the illumination of ultraviolet light highly is fixed on into 16cm, switch on power, after 60min, Close power supply;As a result as shown in fig. 6, passing through method of the invention, waste water decoloring significant effect, by spectrophotometer to degraded Waste water afterwards is detected, percent of decolourization 90.4%.

Claims (10)

  1. A kind of 1. method based on compound particle electrode degrading high salt waste water from dyestuff, it is characterised in that comprise the following steps:Will just Extreme and negative pole end is placed in reaction vessel, and compound particle electrode is placed between positive terminal and negative pole end, forms three-diemsnional electrode;Will Waste water and electrolyte solution containing high salt dyestuff are placed in reaction vessel, and regulation pH is 3-9, in the unidirectional square wave electricity of the pulse power Pressure, ultra violet lamp 50-70min.
  2. 2. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 1, its feature exist In described positive terminal is connected and composed by netted stainless steel with positive pole;Described negative pole end is connected and composed by titanium net and negative pole;Institute The compound particle electrode stated is TiO2/ haydite-graphite compound particle electrode.
  3. 3. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 2, its feature exist In:Described TiO2/ haydite-graphite compound particle electrode, in mass ratio, TiO2/ haydite:Graphite=3:2.
  4. 4. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to Claims 2 or 3, its feature It is:TiO2The preparation method of/haydite comprises the following steps:By volume 1:1:20, by Ti (OBu)4、TiCl3Mixed with methanol Uniformly, under nitrogen protection, 2h is stirred under rotating speed 200-300r/min with magnetic stirring apparatus, obtains translucent mixed liquor;Will be partly Transparent mixed liquor, which is transferred in ice bath, to be continued to stir 24h, while adds NaOH thereto per 30min, and each NaOH addition is, Per 110mL, translucent mixed liquor adds the NaOH solution that 0.2mL concentration is 1mol/L, obtains colloidal sol;Then TiO is pressed2With haydite matter It is 30wt% to measure ratio, and haydite is added into colloidal sol;Ultrasonic vibration is transferred to after 2 days in 70 DEG C of water-bath, at 110 DEG C after gelation Lower dry 150-200min;5h is finally heat-treated at 400-800 DEG C, is cooled down, is cleaned, drying, obtains TiO2/ haydite.
  5. 5. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 1, its feature exist In:Described high salt dyestuff is methylene blue.
  6. 6. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 1, its feature exist In:Described electrolyte solution is the Na that concentration is 2mol/L2SO4Solution.
  7. 7. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 1, its feature exist In:It is 5 to adjust pH.
  8. 8. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 1, its feature exist In:The unidirectional square-wave voltage of the described pulse power is 1.5V, and the power of uviol lamp is 20W.
  9. 9. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 1, its feature exist In:The irradiation of uviol lamp is highly that uviol lamp is apart from high salt waste water from dyestuff and the mixing liquid level 10-16cm of electrolyte solution.
  10. 10. a kind of method based on compound particle electrode degrading high salt waste water from dyestuff according to claim 9, its feature exist In:Uviol lamp is apart from high salt waste water from dyestuff and the mixing liquid level 16cm of electrolyte solution.
CN201711139418.0A 2017-11-16 2017-11-16 A kind of method based on compound particle electrode degrading high salt waste water from dyestuff Pending CN107857343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711139418.0A CN107857343A (en) 2017-11-16 2017-11-16 A kind of method based on compound particle electrode degrading high salt waste water from dyestuff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711139418.0A CN107857343A (en) 2017-11-16 2017-11-16 A kind of method based on compound particle electrode degrading high salt waste water from dyestuff

Publications (1)

Publication Number Publication Date
CN107857343A true CN107857343A (en) 2018-03-30

Family

ID=61701940

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711139418.0A Pending CN107857343A (en) 2017-11-16 2017-11-16 A kind of method based on compound particle electrode degrading high salt waste water from dyestuff

Country Status (1)

Country Link
CN (1) CN107857343A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06121978A (en) * 1991-12-25 1994-05-06 Japan Organo Co Ltd Method for removing impurity in waste water for washing printed circuit board
CN202346797U (en) * 2011-08-22 2012-07-25 上海电力学院 Three-phase three-dimensional electrode photoelectric catalysis reactor
CN104098321A (en) * 2014-08-02 2014-10-15 娄底市裕德科技有限公司 Method for preparation of ceramsite through municipal dewatered sludge
CN105540729A (en) * 2015-12-28 2016-05-04 沈阳理工大学 Method for treating high-salt and high-concentration organic wastewater by photoelectrocatalysis of three-dimensional electrode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06121978A (en) * 1991-12-25 1994-05-06 Japan Organo Co Ltd Method for removing impurity in waste water for washing printed circuit board
CN202346797U (en) * 2011-08-22 2012-07-25 上海电力学院 Three-phase three-dimensional electrode photoelectric catalysis reactor
CN104098321A (en) * 2014-08-02 2014-10-15 娄底市裕德科技有限公司 Method for preparation of ceramsite through municipal dewatered sludge
CN105540729A (en) * 2015-12-28 2016-05-04 沈阳理工大学 Method for treating high-salt and high-concentration organic wastewater by photoelectrocatalysis of three-dimensional electrode

Similar Documents

Publication Publication Date Title
CN107298477B (en) Method for degrading organic pollutants in wastewater by catalyzing persulfate
CN105056981B (en) Preparation and application of composite photocatalyst g-C3N4-BiFeO3 for efficiently removing persistent organic pollutants
CN107486198B (en) Bi based on peach blossom biomass carbon modification2WO6Preparation method and application of composite photocatalyst
CN108080006A (en) Nanometer sheet SnS2Bi2WO6The method of catalytic degradation liguid phase pollutant
CN106944117A (en) The preparation method and application of cobalt sulfide tin/mesoporous carbon nitride catalyst
CN106944074B (en) A kind of visible-light response type composite photo-catalyst and its preparation method and application
CN104803441A (en) Device and method of utilizing solar energy light-heat-electric coupling to treat acrylonitrile sewage
CN107857343A (en) A kind of method based on compound particle electrode degrading high salt waste water from dyestuff
CN109126757A (en) A kind of preparation method of in-situ self-grown black oxidation titanium coating
CN104475159A (en) Preparation method and application of 1-3-generation poly (aryl ether) dendritic phthalocyanine complex loaded SiO2 visible light photocatalyst
CN107442100A (en) The preparation method and application of porous hollow structure gallic oxide photochemical catalyst
CN108212192A (en) A kind of light-fenton catalyst and preparation method thereof
CN109809530A (en) A kind of mosaic electrode and preparation method thereof and three-dimensional electrolysis reactor and its application
CN109292895B (en) Photocatalyst Li2SnO3Preparation method and application of
CN106946330B (en) Method for preparing water treatment agent from chemical iron oxide mud
CN105170171A (en) Preparation method of rare earth composite boron-nitrogen co-doped titanium dioxide catalyst
CN110605138A (en) Preparation method and application of tantalum oxygen nitrogen/foamed nickel photocatalytic contact oxide film
CN110639580A (en) Composite photocatalyst and batch wastewater treatment method based on same
CN109231380A (en) A kind of electrochemical process for treating of multiple adsorption treatment low-concentration phosphorus-containing solution
CN105600866B (en) For going the electricity of inorganic halate in water removal to help photocatalysis cathode preparation method
CN108479812A (en) A kind of AgInS2/Bi2WO6The preparation method and application of hetero-junctions nanometer sheet
CN103464132A (en) Multiplex photo-catalyst based on flocculation sludge water treatment and preparing method of multiplex photo-catalyst
CN108940349A (en) The method of carbonitride Z-type photochemical catalyst removal dyestuff contaminant is mixed using siliver chromate/sulphur
CN104984756B (en) A kind of NF-Bi2O3- SBA visible light responsive photocatalysts and its preparation method and application
CN106902758A (en) A kind of preparation and application of the Graphene adsorbent of aerobic particle mud N doping

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