CN113104994A - Waste water treatment reaction device adopting photoproduction coupling technology - Google Patents
Waste water treatment reaction device adopting photoproduction coupling technology Download PDFInfo
- Publication number
- CN113104994A CN113104994A CN202110663304.6A CN202110663304A CN113104994A CN 113104994 A CN113104994 A CN 113104994A CN 202110663304 A CN202110663304 A CN 202110663304A CN 113104994 A CN113104994 A CN 113104994A
- Authority
- CN
- China
- Prior art keywords
- solution
- water
- water treatment
- stirring
- tio
- 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
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 24
- 238000010168 coupling process Methods 0.000 title claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000004917 carbon fiber Substances 0.000 claims abstract description 44
- 239000004814 polyurethane Substances 0.000 claims abstract description 42
- 229920002635 polyurethane Polymers 0.000 claims abstract description 42
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 41
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 31
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 27
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 15
- 239000010936 titanium Substances 0.000 claims description 15
- 150000002148 esters Chemical class 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 238000003760 magnetic stirring Methods 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 8
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 6
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical group [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 6
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 6
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 4
- 229910052691 Erbium Inorganic materials 0.000 claims description 4
- 229910052693 Europium Inorganic materials 0.000 claims description 4
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- 229910052689 Holmium Inorganic materials 0.000 claims description 4
- 229910052765 Lutetium Inorganic materials 0.000 claims description 4
- 229910052779 Neodymium Inorganic materials 0.000 claims description 4
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 4
- 229910052773 Promethium Inorganic materials 0.000 claims description 4
- 229910052772 Samarium Inorganic materials 0.000 claims description 4
- 229910052771 Terbium Inorganic materials 0.000 claims description 4
- 229910052775 Thulium Inorganic materials 0.000 claims description 4
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 4
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 4
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 4
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 4
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 4
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 claims description 4
- 239000006247 magnetic powder Substances 0.000 claims description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 4
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 4
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium atom Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 claims description 4
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052706 scandium Inorganic materials 0.000 claims description 4
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 4
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 4
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 2
- 238000007796 conventional method Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 6
- 230000033558 biomineral tissue development Effects 0.000 abstract description 4
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 2
- 230000000813 microbial effect Effects 0.000 abstract 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 54
- 230000000052 comparative effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 11
- 230000001699 photocatalysis Effects 0.000 description 9
- 244000005700 microbiome Species 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 229960002135 sulfadimidine Drugs 0.000 description 4
- ASWVTGNCAZCNNR-UHFFFAOYSA-N sulfamethazine Chemical compound CC1=CC(C)=NC(NS(=O)(=O)C=2C=CC(N)=CC=2)=N1 ASWVTGNCAZCNNR-UHFFFAOYSA-N 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- RLJWTAURUFQFJP-UHFFFAOYSA-N propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)O.CC(C)O.CC(C)O RLJWTAURUFQFJP-UHFFFAOYSA-N 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 241000221089 Jatropha Species 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 229910004619 Na2MoO4 Inorganic materials 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000032770 biofilm formation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052564 epsomite Inorganic materials 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008684 selective degradation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 239000011686 zinc sulphate Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Microbiology (AREA)
- Dispersion Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Physical Water Treatments (AREA)
- Catalysts (AREA)
Abstract
The invention provides a wastewater treatment reaction device adopting a photo-generated coupling technology, which comprises a shell; a plurality of groups of water treatment units arranged side by side are sequentially arranged in the shell from left to right, a spray pipe is arranged in the space above the water treatment units, and a space below the water treatment unitsOne side of the space is provided with an ejector, and ultraviolet lamps which are arranged in a vertically staggered manner are arranged between every two adjacent water treatment units; the ejector is connected with a water outlet pipe of the circulating pump through a connecting pipe, and a water inlet pipe of the circulating pump is communicated with the shell; the spray pipe is communicated with a water outlet pipe of the circulating pump through a connecting pipe; the water treatment unit comprises 2 composite polyurethane material layers and load TiO attached to one surface of each composite polyurethane material layer2A carbon fiber plate with a TiO-loaded layer2One side of the carbon fiber plate faces outwards. The device can remove organic pollutants difficult to degrade in water, has the functions of photocatalytic degradation open chain and microbial mineralization, is suitable for deep treatment of various middle-low concentration wastewater, and is environment-friendly and free of secondary pollution.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a wastewater treatment reaction device adopting a photo-coupling technology.
Background
With the emergence of various novel pollutants in water, the traditional sewage treatment technology represented by an activated sludge process faces a dilemma because the degradation-resistant pollutants with high concentration and complex structure are difficult to degrade. Advanced Oxidation (AOPs) technologies, represented by photocatalytic oxidation technology, work fast, but their non-selective degradation, which relies on free radical reactions, can lead to a series of over-oxidation problems. The reason that the traditional technology is difficult to carry out photocatalytic reaction and biological treatment in the same reactor is mainly because photocatalytic reaction is quick and non-selective, and the ultraviolet light that the photocatalysis adopted has a bactericidal effect, and the microorganism exposes under the ultraviolet light, and the ultraviolet light can kill the microorganism to be unfavorable for biochemical treatment. The ICPB (integrated coupling of photocatalysis and biodegradation) technology is a novel wastewater treatment technology combining photocatalysis technology and biological treatment, has the advantages of low cost, environmental friendliness, sustainability and the like, and has a good application prospect in the field of wastewater treatment. The device that current ICPB technique was used is lower to the efficiency of treatment of inhibitory waste water, and the treatment effect is relatively poor.
Disclosure of Invention
In view of the above, the present invention is directed to a wastewater treatment reactor using photo-coupling technology to solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a wastewater treatment reaction device adopting a photoproduction coupling technology comprises a shell, a circulating pump, an ejector, an ultraviolet lamp, a water treatment unit, a bracket and a spray pipe;
a plurality of groups of water treatment units which are arranged side by side are sequentially arranged in the shell from left to right, a bracket for supporting the water treatment units is arranged in the shell, spaces are reserved between the water treatment units and the top and the bottom of the shell, a spray pipe is arranged in the space above the water treatment units, an ejector is arranged on one side of the space below the water treatment units, and ultraviolet lamps which are arranged in a vertically staggered manner are arranged between every two adjacent water treatment units; the ejector is connected with a water outlet pipe of the circulating pump through a connecting pipe, and a water inlet pipe of the circulating pump is communicated with the shell; the spray pipe is communicated with a water outlet pipe of the circulating pump through a connecting pipe; the lower part of the shell is provided with an air relief pipe, the middle upper part of the shell is provided with a water collecting pipe, and the water collecting pipe is positioned below the spray pipe;
the water treatment unit comprises 2 composite polyurethane material layers and load TiO attached to one surface of each composite polyurethane material layer2A carbon fiber plate with a TiO-loaded layer2One side of the carbon fiber plate faces outwards.
Further, the supported TiO2The carbon fiber plate is prepared by the following steps:
step 1) uniformly mixing an anhydrous alcohol solution, water and an excessive rare earth element solution to obtain a solution A, and adjusting the pH value of the solution A;
step 2) slowly adding an ester titanium source into an anhydrous alcohol solution to obtain a solution B, continuously stirring the solution B for 1-3h, soaking the cut carbon fibers in the solution B, and then continuously stirring the solution B;
slowly dripping the solution A into the solution B under the stirring condition after the step 3), and continuously stirring after finishing dripping;
step 4) taking out the carbon fiber, draining sol on the surface of the carbon fiber, and drying, washing and calcining the carbon fiber to obtain the loaded TiO2A carbon fiber plate.
Further, the volume ratio of the absolute ethyl alcohol to the water in the step 1) is 2-4:1, and the pH value of the solution A is 3-4; the volume ratio of the ester titanium source in the step 2) to the anhydrous alcohol solution is 1: 5-20; the stirring adopts magnetic stirring or ultrasonic; the time of the continuous stirring step in the step 3) is 1-3 hours, and magnetic stirring or ultrasonic stirring is adopted in the continuous stirring step; the time of the dripping step in the step 3) is 30-60 min; the temperature of the drying step in the step 4) is 80-100 ℃, the temperature of the calcining step is 350-800 ℃, and the time is 2-4 hours.
Further, the rare earth element solution contains at least one of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, yttrium or scandium; the ester titanium source is tetrabutyl titanate and tetraisopropyl titanate; the anhydrous alcohol solution is at least one of anhydrous ethanol, anhydrous propanol, anhydrous butanol or anhydrous pentanol.
Further, adding doped TiO into the solution A obtained in the step 1)2And (3) pulverizing.
Further, the doped TiO2The powder is prepared by the following steps:
step 1) mixing an ester titanium source and an anhydrous alcohol solution to obtain a solution C;
step 2) mixing the anhydrous alcohol solution, the weak acid solution, water and the excessive rare earth element solution to obtain a solution D;
step 3) dropwise adding the solution C into the solution D under the stirring condition, and continuously stirring after dropwise adding to obtain the doped TiO2Sol;
step 4) doping TiO2Drying, grinding and burning the sol to obtain doped TiO2And (3) powder.
Further, the doped TiO2The rare metal content in the powder is 0.05-0.2%; the ester titanium source in the step 1)The volume ratio of the alcohol to the absolute ethyl alcohol is 1: 5-20; the volume ratio of the anhydrous alcohol solution to the water in the step 2) is 5-3: 1; the absolute alcohol solution is at least one of absolute ethyl alcohol, absolute propyl alcohol, absolute butanol or absolute amyl alcohol; the weak acid solution is at least one of glacial acetic acid, dilute hydrochloric acid or dilute nitric acid; the pH value of the solution D is 3-4; the time of the continuous stirring step in the step 3) is 0.5-2 h; magnetic stirring or ultrasonic stirring is adopted for stirring; the rare earth element solution contains at least one of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, yttrium or scandium; the ester titanium source is tetrabutyl titanate, tetraisopropyl titanate and butyl titanate.
Further, the composite polyurethane material layer is made of a magnetic polyurethane material, and the magnetic polyurethane material is prepared by adding magnetic powder or modified magnetic powder into the raw materials of the polyurethane material and then adopting a conventional method.
Further, the distance between the adjacent 2 water treatment units is 1 m. The distance between the 2 composite polyurethane material layers (6) of the water treatment unit is 0.5 m.
Furthermore, a blower is connected to the connecting pipe connected with the spray pipe.
Furthermore, a water outlet valve is arranged on the water collecting pipe.
Compared with the prior art, the waste water treatment reaction device adopting the photo-generated coupling technology has the following advantages:
(1) the water treatment unit of the wastewater treatment reaction device adopting the photo-generated coupling technology simultaneously adopts polyurethane material and TiO load2The biological wastewater treatment device comprises a carbon fiber plate, wherein the polyurethane material has the advantages of good stability, simple processing technology, strong adsorption force and low cost, and the polyurethane sponge has the advantages of a three-dimensional porous structure, strong flexibility and the like, and can be used as a carrier material for microorganism immobilization in the biological wastewater treatment process; supported TiO2The carbon fiber plate has TiO on the one hand2The carbon fiber plate has good toughness, conductivity and corrosion resistance as a carrierAnd the water treatment effect is good, and the water can be recycled. The two are combined for use, so that photocatalysis and biodegradation can be simultaneously realized, and the same water treatment unit comprises 2 composite polyurethane material layers, wherein TiO is not loaded on the inner sides of the composite polyurethane material layers2The carbon fiber plate is convenient for the grown microorganisms to fall off. In addition, the device adopts the mode of ejector aeration and spraying simultaneously for water is in the mobile state all the time, is more favorable to waste water treatment, and the polyurethane material part is partly in the surface of water in water, and the mineralization is reinforceed in the biological trickling filter, and the photodissociation can prevent that the stink from producing.
(2) The wastewater treatment reaction device adopting the photoproduction coupling technology optimizes the treatment efficiency of ICPB on inhibitory wastewater, selects an appropriate co-metabolism substrate for regulating and controlling the degradation process, further improves the treatment capacity of ICPB on the inhibitory wastewater, and solves the problem that high efficiency (a calcining method can carbonize a polyurethane filler) and stability (an impregnation method is poor in stability) are contradictory.
3) The supported TiO of the invention2Carbon fiber plate and TiO2Compared with the prior art, the composite material has the advantages of pollutant adsorption capacity, wear resistance and reusability, and therefore, the composite material has an industrial application prospect. With TiO on the market2Compared with the common active carbon and other materials, the carbon fiber is adopted, so that the mechanical strength is high and the wear resistance is high. The sol-gel method replaces the dipping method, the combination effect of the two methods is good, the powder is not easy to fall off, and the method can be repeatedly used, so that the method has industrial application prospect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of a waste water treatment reactor by photo-coupling technology according to an embodiment of the present invention;
FIG. 2 is a top view of a wastewater treatment reactor according to the photo-coupling technique of the present invention;
FIG. 3 is a graph of the residual concentration ratio of test 1 according to an example of the present invention;
FIG. 4 is a graph of the residual concentration ratio of test 2 according to the example of the present invention.
Description of reference numerals:
1-a blower; 2-a circulating pump; 3-a distribution box; 4-an ejector; 5-an ultraviolet lamp; 6-composite polyurethane material layer; 7-water collecting pipe; 8-a water outlet valve; 9-evacuation of the tube; 10-Supported TiO2A carbon fiber sheet; 11-a scaffold; 12-a housing; 13-shower.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1 use of undoped TiO2TiO supported powders2Carbon fiber plate
As shown in fig. 1-2, a wastewater treatment reaction device by using a photo-coupling technology comprises a shell 12, a circulating pump 2, an ejector 4, an ultraviolet lamp 5, a water treatment unit, a bracket 11 and a spray pipe 13;
a plurality of groups of water treatment units which are arranged side by side are sequentially arranged in the shell 12 from left to right, a bracket 11 for supporting the water treatment units is arranged in the shell 12, spaces are reserved between the water treatment units and the top and the bottom of the shell 12, a spray pipe 13 is arranged in the space above the water treatment units, an ejector 4 is arranged on one side of the space below the water treatment units, ultraviolet lamps 5 which are arranged in a vertically staggered manner are arranged between every two adjacent water treatment units, and a quartz protective cover is arranged outside each ultraviolet lamp 5; the ejector 4 is connected with a water outlet pipe of the circulating pump 2 through a connecting pipe, and a water inlet pipe of the circulating pump 2 is communicated with the shell 12; the spray pipe 13 is communicated with a water outlet pipe of the circulating pump 2 through a connecting pipe; the lower part of the shell 12 is provided with an air discharge pipe 9, the middle upper part of the shell 12 is provided with a water collecting pipe 7, and the water collecting pipe 7 is positioned below the spray pipe 13;
the water treatment unit comprises 2 composite polyurethane material layers 6 and load TiO attached to one surface of each composite polyurethane material layer 62A carbon fiber plate 10 to which a TiO carrier is attached2One side of the carbon fiber sheet 10 faces outward.
The device is provided with a distribution box 3 for supplying power, the distance between every two adjacent water treatment units is 1m, and the distance between every two adjacent composite polyurethane material layers 6 of the water treatment units is 0.5m, and an air blower 1 is connected to a connecting pipe connected with a spray pipe 13; and a water outlet valve 8 is arranged on the water collecting pipe 7.
Wherein, TiO is supported2The carbon fiber sheet 10 is prepared by the following steps:
1) to make Ti O2The sol is more and more firmly loaded on CF (carbon fiber), and the CF is subjected to surface activation pretreatment: the CF is commercially available without a protective film,putting into a three-neck flask containing concentrated nitric acid, placing in an oil bath pan at 115 deg.C for 3 hr, cooling CF to room temperature, and washing CF with deionized water to p H of cleaning solution>6; finally, putting the mixture into a flood box and drying the mixture overnight at 80 ℃ for later use;
2) mixing anhydrous ethanol, water (3: 1) and excess Pr (NO)3) 3•6H2Mixing O to obtain solution A, and adjusting pH =3.5 with glacial acetic acid, Pr (NO)3) 3•6H2The mass ratio of the O to the ester titanium source is 5 percent;
3) mixing Ti (OC) in a volume ratio of 1:10 under magnetic stirring4H9)4Slowly adding the carbon fiber into absolute ethyl alcohol to form a solution B, continuously magnetically stirring the solution B for 2 hours, soaking the cut carbon fiber into the solution B, and continuously magnetically stirring the solution B;
4) slowly dropping the solution A into the solution B and continuously stirring for 3 hours, controlling the time for dropping the solution A to be 30-60min, then slowly taking out, draining excessive sol on the surface and drying at 80 ℃; after washing, the loaded Ti O2the/CF is put into a tube furnace and calcined for 2 hours at 550 ℃ under the air atmosphere.
The composite polyurethane material layer is made of a magnetic polyurethane material, and the polyurethane material is prepared by the following steps:
1) weighing Fe3O4And MilliQ water are subjected to ultrasonic dispersion to prepare Fe3O4A suspension; adding 50% ethanol-water solution, adding KH550, and quickly stirring in water bath to complete reaction. Magnetically separating from the reaction medium, washing with 50% ethanol-water solution, and drying to obtain modified Fe3O4。
2) Weighing modified Fe3O4Adding into hexamethylene diisocyanate, mechanically stirring at 80 deg.C for 0.5h, adding jatropha oil-based polyol (JOL) and dibutyltin dilaurate, and continuing to react. Reacting for 2h, cooling to 65 ℃, adding dimethylolpropionic acid, continuously heating to 80 ℃, reacting for 1h, cooling to 40 ℃, adding acetone to reduce the viscosity of the reactant, adding triethylamine to neutralize for 10min, pouring the obtained prepolymer into a dispersing barrel, adding water, shearing at high speed, dispersing, and preparing the componentDispersing in a mould filled with polytetrafluoroethylene, vacuum drying, and modifying Fe3O4The mass of the magnetic polyurethane sponge is 4 percent of the total mass of the magnetic polyurethane sponge, and the magnetic polyurethane material is finally obtained.
Example 2 use of a doped TiO2TiO supported powders2Carbon fiber plate
Based on the above examples, doped TiO is used2TiO supported powders2A carbon fiber plate.
Doped TiO2The powder is prepared by the following steps:
1) tetrabutyl titanate and absolute ethyl alcohol are mixed according to the proportion of 1:10 to obtain a solution C,
2) mixing 3:1 anhydrous ethanol and water, adding excess Pr (NO)3) 3•6H2O, then adding glacial acetic acid to adjust the pH value of the solution to 3-4, and mixing to obtain a solution D, Pr (NO)3) 3•6H2The mass ratio of the O to the ester titanium source is 5 percent;
3) dropwise adding the solution C into the solution D under the condition of ultrasonic magnetic stirring, and continuously performing magnetic stirring for 0.5h after dropwise adding is finished to obtain doped TiO2The sol is prepared by mixing a sol and a solvent,
4) will dope TiO2Drying, grinding and burning the sol to obtain doped TiO2And (3) powder.
After the preparation of the resulting solution A, the doped TiO prepared as described above is added2The procedure was as in example 1.
Comparative example 1
On the basis of example 1, the composite polyurethane material layer was removed.
Comparative example 2
On the basis of example 1, the supported TiO2Replacement of carbon fiber plates with commercial TiO2And (3) a net.
Comparative example 3
On the basis of the embodiment 1, TiO-loaded polyurethane material layers are attached to both sides of the composite polyurethane material layer in the water treatment unit2A carbon fiber plate.
Comparative example 4
Based on example 1, removeSupported TiO2A carbon fiber plate.
Load microorganism
The activated sludge source used for inoculation comes from a sewage treatment plant A2And in the aerobic section of the/O process, activated sludge is inoculated on the polyurethane materials adopted in the examples 1-2 and the comparative examples 2-4 in a soaking and adsorbing mode. Soaking the polyurethane material carrier in the activated sludge, aerating for 24 h, and then carrying out conventional film formation. After the film is formed, a certain amount of biomass exists in the inner pore channel and the outer surface of the sponge carrier, and the polyurethane material is put into a reaction device for culture. The wastewater after low-concentration dilution is continuously fed, and the concentration of the feed water pollutants is gradually increased subsequently. An aeration device is arranged at the bottom of the reactor, and the dissolved oxygen is controlled to be more than 2 mg/L. Irradiating the surface of the polyurethane material with ultraviolet lamp light with an einstein constant of the corresponding light energy of the ultraviolet lamp at an ultraviolet intensity of 3.93 × 10−7 einstein/(L·s)。
TABLE 1 polyurethane material Carrier biofilm formation Manual Water distribution Components
| Principal Components | Content (mg/L) | Trace elements | Content (mg/L) |
| NaAc·3H2O | 330 | H3BO3 | 2.86 |
| NH4Cl | 28.66 | MnCl2 | 1.86 |
| K2HPO4·3H2O | 12 | CuSO4 | 0.08 |
| NaH2PO4·2H2O | 4 | ZnSO4 | 0.22 |
| |
2 | Na2MoO4 | 0.39 |
| MgSO4·7H2O | 2 |
The artificial water distribution components are shown in the table above, wherein C: n: p is about 100: 5: 1, influent CODCrThe COD in and out of the water was monitored daily at 130 mg/LCrAnd DO (dissolved oxygen) and the like, observing the growth and distribution condition of the biological membrane in the carrier, and waiting for about 7 days until the effluent CODCrAfter the biological membrane is stabilized, the biological membrane can be stably attached to the polyurethane material.
The adsorption effect and photocatalytic performance of the device were evaluated by taking as an example the degradation rate of a degraded RhB solution, the reaction of photocatalytic degradation of Rh B (maximum absorption wavelength of 254 nm) was carried out in the device of the present invention, aeration and agitation were carried out by an ejector, flow and circulation of water were carried out by a circulation pump, a plurality of ultraviolet lamps each comprising a quartz protective cover were separated from water inlet to water outlet, the RhB wastewater used had a concentration of 1200mg/L, the treatment conditions of each comparative example using example 1 were observed separately, and the residual concentration ratios of example 1, example 2, comparative example 1, and comparative example 4 were recorded.
The results show that the comparative example 4 for treating the high-concentration RhB solution only has biochemical effect and poor effect; in contrast, comparative example 1 only had photolysis, and started to mainly take open chain reaction, so that the mineralization efficiency was low, and even COD reverse-rising phenomenon occurred. Example 1 using photogenerated coupling techniques, RhB solutions were rapidly mineralized with residual concentrations as shown in fig. 3.
Comparative example 2 use commercially available TiO2The plate is inconvenient for measuring data because titanium powder is easy to fall off, so that solution is whitened, the activity of the photocatalyst is lost, and a degradation test cannot be well carried out.
Comparative example 3 attachment of carbon fiber plates on both sides is easy to block the filler and not beneficial to biochemical effect, and the preferable design of the one-way photocatalytic material, such as example 1 and example 2, leaves a gap for the falling of the aged biofilm to prevent the filler from blocking.
The adsorption effect and the photocatalytic performance of the device are evaluated by taking the degradation rate of a degraded sulfamethazine solution as an example, the reaction of degrading sulfamethazine through photocatalysis (the maximum absorption wavelength is 254 nm) is carried out in the device, aeration and stirring are carried out through an ejector, and water flows and circulates through a circulating pump. The plurality of ultraviolet lamps each comprising a quartz shield were spaced apart from each other by water inlet and water outlet, and the concentration of the sulfadimidine solution used was 25mg/L, and the treatment conditions using example 1 and each comparative example were observed, respectively, and the residual concentration ratios of example 1, example 2, comparative example 1 and comparative example 4 were recorded.
The result shows that the comparative example 4 for treating low-concentration sulfamethazine solution only has biochemical effect and poor effect; in contrast, comparative example 1, which only photolyzed, had a reduced inhibitory effect on microorganisms after the start, improved biochemical performance, and increased mineralization efficiency. Example 1 solutions difficult to treat for conventional biochemical reactions can be biochemically treated using a photo-coupling technique with residual concentrations such as those shown in fig. 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a photogeneration coupling technology effluent treatment reaction unit which characterized in that: comprises a shell (12), a circulating pump (2), an ejector (4), an ultraviolet lamp (5), a water treatment unit, a bracket (11) and a spray pipe (13);
a plurality of groups of water treatment units which are arranged side by side are sequentially arranged in the shell (12) from left to right, a bracket (11) for supporting the water treatment units is arranged in the shell (12), spaces are reserved between the water treatment units and the top and the bottom of the shell (12), a spray pipe (13) is arranged in the space above the water treatment units, an ejector (4) is arranged on one side of the space below the water treatment units, and ultraviolet lamps (5) which are arranged in a vertically staggered manner are arranged between every two adjacent water treatment units; the ejector (4) is connected with a water outlet pipe of the circulating pump (2) through a connecting pipe, and a water inlet pipe of the circulating pump (2) is communicated with the shell (12); the spray pipe (13) is communicated with a water outlet pipe of the circulating pump (2) through a connecting pipe; an air discharge pipe (9) is arranged at the lower part of the shell (12), a water collecting pipe (7) is arranged at the middle upper part of the shell (12), and the water collecting pipe (7) is positioned below the spray pipe (13);
the water treatment unit comprises 2 composite polyurethane material layers (6) and load TiO attached to one surface of each composite polyurethane material layer (6)2A carbon fiber plate (10) to which a TiO-supporting material is attached2One side of the carbon fiber plate (10) faces outwards.
2. The photocoupling technique of claim 1Waste water treatment reaction unit, its characterized in that: the supported TiO2The carbon fiber plate (10) is prepared by the following steps:
step 1) uniformly mixing an anhydrous alcohol solution, water and an excessive rare earth element solution to obtain a solution A, and adjusting the pH value of the solution A;
step 2) slowly adding an ester titanium source into an anhydrous alcohol solution to obtain a solution B, continuously stirring the solution B for 1-3h, soaking the cut carbon fibers in the solution B, and then continuously stirring the solution B;
slowly dripping the solution A into the solution B under the stirring condition after the step 3), and continuously stirring after finishing dripping;
step 4) taking out the carbon fiber, draining sol on the surface of the carbon fiber, and drying, washing and calcining the carbon fiber to obtain the loaded TiO2A carbon fiber sheet (10).
3. The photocoupling technology wastewater treatment reaction device of claim 2, wherein: the volume ratio of the absolute ethyl alcohol to the water in the step 1) is 2-4:1, and the pH value of the solution A is 3-4; the volume ratio of the ester titanium source in the step 2) to the anhydrous alcohol solution is 1: 5-20; the stirring adopts magnetic stirring or ultrasonic; the time of the continuous stirring step in the step 3) is 1-3 hours, and magnetic stirring or ultrasonic stirring is adopted in the continuous stirring step; the time of the dripping step in the step 3) is 30-60 min; the temperature of the drying step in the step 4) is 80-100 ℃, the temperature of the calcining step is 350-800 ℃, and the time is 2-4 hours.
4. The photocoupling technology wastewater treatment reaction device of claim 2, wherein: the rare earth element solution contains at least one of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, yttrium or scandium; the ester titanium source is tetrabutyl titanate, tetraisopropyl titanate and tetrabutyl titanate; the anhydrous alcohol solution is at least one of anhydrous ethanol, anhydrous propanol, anhydrous butanol or anhydrous pentanol.
5. The photocoupling technology wastewater treatment reaction device of claim 2, wherein: adding doped TiO into the solution A obtained in the step 1)2And (3) pulverizing.
6. The photocoupling technology wastewater treatment reaction device of claim 5, wherein: the doped TiO2The powder is prepared by the following steps:
step 1) mixing an ester titanium source and an anhydrous alcohol solution to obtain a solution C;
step 2) mixing the anhydrous alcohol solution, the weak acid solution, water and the excessive rare earth element solution to obtain a solution D;
step 3) dropwise adding the solution C into the solution D under the stirring condition, and continuously stirring after dropwise adding to obtain the doped TiO2Sol;
step 4) doping TiO2Drying, grinding and burning the sol to obtain doped TiO2And (3) powder.
7. The photocoupling technology wastewater treatment reaction device of claim 6, wherein: the doped TiO2The rare metal content in the powder is 0.05-0.2%; the volume ratio of the ester titanium source in the step 1) to the absolute ethyl alcohol is 1: 5-20; the volume ratio of the anhydrous alcohol solution to the water in the step 2) is 5-3: 1; the absolute alcohol solution is at least one of absolute ethyl alcohol, absolute propyl alcohol, absolute butanol or absolute amyl alcohol; the weak acid solution is at least one of glacial acetic acid, dilute hydrochloric acid or dilute nitric acid; the pH value of the solution D is 3-4; the time of the continuous stirring step in the step 3) is 0.5-2 h; magnetic stirring or ultrasonic stirring is adopted for stirring; the rare earth element solution contains at least one of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, yttrium or scandium; the ester titanium source is tetrabutyl titanate and tetraisopropyl titanate.
8. The photocoupling technology wastewater treatment reaction device of claim 1, wherein: the composite polyurethane material layer is made of a magnetic polyurethane material, and the magnetic polyurethane material is prepared by adding magnetic powder or modified magnetic powder into the raw materials of the polyurethane material and then adopting a conventional method.
9. The photocoupling technology wastewater treatment reaction device of claim 1, wherein: the distance between 2 adjacent water treatment units is 1m, and the distance between 2 composite polyurethane material layers (6) of the water treatment units is 0.5 m.
10. The photocoupling technology wastewater treatment reaction device of claim 1, wherein: the connecting pipe connected with the spray pipe (13) is also connected with a blower (1); and a water outlet valve (8) is arranged on the water collecting pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110663304.6A CN113104994B (en) | 2021-06-16 | 2021-06-16 | Waste water treatment reaction device adopting photoproduction coupling technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110663304.6A CN113104994B (en) | 2021-06-16 | 2021-06-16 | Waste water treatment reaction device adopting photoproduction coupling technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113104994A true CN113104994A (en) | 2021-07-13 |
| CN113104994B CN113104994B (en) | 2021-09-24 |
Family
ID=76723592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110663304.6A Active CN113104994B (en) | 2021-06-16 | 2021-06-16 | Waste water treatment reaction device adopting photoproduction coupling technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113104994B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691417A (en) * | 2013-12-24 | 2014-04-02 | 南京大学 | Preparation method of TiO2/ACF (Active Carbon Fiber) catalytic material and application thereof |
| CN104475079A (en) * | 2014-12-12 | 2015-04-01 | 青岛润国生态科技发展有限公司 | Preparation method of supported photocatalytic composite material |
| CN106362724A (en) * | 2016-08-11 | 2017-02-01 | 潘忠宁 | Preparation method for Nd/Y co-doped modified nanometer TiO2 |
| CN109748468A (en) * | 2019-03-15 | 2019-05-14 | 生态环境部南京环境科学研究所 | A kind of system and method for biological coupling photocatalysis synchronization process organic wastewater with difficult degradation thereby |
| CN109942155A (en) * | 2019-04-16 | 2019-06-28 | 南京工程学院 | A kind of printing-dyeing waste water treatment process |
| CN112473645A (en) * | 2020-12-02 | 2021-03-12 | 张金龙 | Modified TiO (titanium dioxide)2Photocatalytic material loaded with active porous carbon fibers and preparation method thereof |
-
2021
- 2021-06-16 CN CN202110663304.6A patent/CN113104994B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691417A (en) * | 2013-12-24 | 2014-04-02 | 南京大学 | Preparation method of TiO2/ACF (Active Carbon Fiber) catalytic material and application thereof |
| CN104475079A (en) * | 2014-12-12 | 2015-04-01 | 青岛润国生态科技发展有限公司 | Preparation method of supported photocatalytic composite material |
| CN106362724A (en) * | 2016-08-11 | 2017-02-01 | 潘忠宁 | Preparation method for Nd/Y co-doped modified nanometer TiO2 |
| CN109748468A (en) * | 2019-03-15 | 2019-05-14 | 生态环境部南京环境科学研究所 | A kind of system and method for biological coupling photocatalysis synchronization process organic wastewater with difficult degradation thereby |
| CN109942155A (en) * | 2019-04-16 | 2019-06-28 | 南京工程学院 | A kind of printing-dyeing waste water treatment process |
| CN112473645A (en) * | 2020-12-02 | 2021-03-12 | 张金龙 | Modified TiO (titanium dioxide)2Photocatalytic material loaded with active porous carbon fibers and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 祁鲁梁 等: "《水处理工艺与运行管理实用手册》", 31 May 2002, 中国石化出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113104994B (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100447100C (en) | Biological electrochemical combined system for treating dye waste water and method thereof | |
| CN103112991B (en) | Coking wastewater treatment system and coking wastewater treatment method | |
| CN102923826A (en) | Device for compositely catalytic oxidation treatment of organic wastewater and preparation method of catalytic anode | |
| CN101475283B (en) | Solar photocatalytic plant water purifying method | |
| CN102874960A (en) | Device and method for treating high-salinity and degradation-resistant organic industrial waste water by performing photoelectrical synchro coupling and catalytic oxidation on three-dimensional particles | |
| CN206447734U (en) | A kind of combined type sewage treatment equipment | |
| CN110240367B (en) | Sewage treatment system and method for synchronous and efficient removal of carbon, nitrogen and phosphorus | |
| CN113710797A (en) | Floating micro-aeration unit, device and method capable of being scaled | |
| WO2012036408A2 (en) | Submerged-membrane bioreactor that easily responds to load regulation, and method of treating wastewater using the same | |
| CN109020070A (en) | The processing method of anti-oxidant agent production waste water | |
| KR100891004B1 (en) | Wastewater Treatment System and Method Using Nano Metal and Catalysis Membrane | |
| CN109133506A (en) | A kind of depth sewage treatment process | |
| CN111423066A (en) | Sewage treatment system | |
| CN113104994B (en) | Waste water treatment reaction device adopting photoproduction coupling technology | |
| CN202594919U (en) | Biochemical pretreatment-type membrane bioreaction sewage treatment device | |
| CN210438469U (en) | Catalytic oxidation reaction system for advanced wastewater treatment | |
| CN109502933B (en) | Method and system for treating wastewater containing polyacrylamide | |
| CN209815909U (en) | System for biologically coupling photocatalysis synchronous processing is difficult for degrading organic waste water | |
| CN113104995B (en) | Magnetic polyurethane photoproduction coupling filler and preparation method thereof | |
| CN208649040U (en) | A kind of proprietary processing unit of high concentration antibiotic organic wastewater | |
| CN105936571A (en) | Method for processing polyurethane (PU) synthetic leather wastewater | |
| CN113636721B (en) | Device and method for treating secondary effluent of sewage plant | |
| CN114230086A (en) | Sewage treatment device and high-performance MBR (membrane bioreactor) combined process | |
| CN208949091U (en) | A kind of total system of textile manufacturing waste water | |
| CN114380465A (en) | High-efficiency modular leachate treatment system, working method and application |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 1468, building 1, 188 Rixin Road, Binhai Science Park, Binhai New Area, Tianjin Applicant after: Tianjin Environmental Protection Technology Development Center Design Institute Co.,Ltd. Address before: 1468, building 1, 188 Rixin Road, Binhai Science Park, Binhai New Area, Tianjin Applicant before: Design Institute of Tianjin Environmental Protection Technology Development Center |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |