Hauv ntiaj teb, txhua yam muaj nws qhov zoo thiab qhov tsis zoo. Kev vam meej ntawm tib neeg thiab kev txhim kho tib neeg txoj kev ua neej nyob ua rau muaj kev ua qias tuaj ib puag ncig. Cov dej khib nyiab yog ib qho teeb meem zoo li no. Nrog rau kev loj hlob sai ntawm kev lag luam xws li petrochemicals, textiles, papermaking, tshuaj tua kab, tshuaj, metallurgy, thiab khoom noj khoom haus, tag nrho cov dej pov tseg tau nce ntau thoob ntiaj teb. Tsis tas li ntawd, cov dej khib nyiab feem ntau muaj cov ntsiab lus siab, muaj kuab paug siab, siab salinity, thiab cov xim muaj xim, ua rau nws nyuaj rau degrade thiab kho, ua rau muaj kuab paug loj heev.
Txhawm rau cuam tshuam nrog cov dej khib nyiab loj uas tsim tawm txhua hnub, tib neeg tau ua haujlwm ntau txoj hauv kev, sib txuas lub cev, tshuaj lom neeg, thiab kev lom neeg, nrog rau kev siv zog xws li hluav taws xob, suab, lub teeb, thiab hlau nplaum. Tsab ntawv xov xwm no piav qhia txog kev siv "hluav taws xob" hauv kev kho dej electrochemical los daws qhov teeb meem no.
Electrochemical dej kho tshuab yog hais txog cov txheej txheem ntawm degrading cov pa phem nyob rau hauv cov dej khib nyiab los ntawm cov tshuaj electrochemical, cov txheej txheem electrochemical, los yog cov txheej txheem ntawm lub cev nyob rau hauv ib qho kev electrochemical reactor, nyob rau hauv lub hwj chim ntawm electrodes los yog ib tug siv hluav taws xob teb. Cov tshuab hluav taws xob thiab cov cuab yeej siv tau yooj yim, tuav cov hneev taw me me, muaj cov nqi khiav lag luam thiab kev saib xyuas, tiv thaiv cov pa phem thib ob, muaj kev tswj xyuas siab, thiab ua rau muaj kev lag luam automation, tau txais lawv daim ntawv lo ntawm "ib puag ncig tus phooj ywg" thev naus laus zis.
Electrochemical dej kho tshuab suav nrog ntau yam txuj ci xws li electrocoagulation-electroflotation, electrodialysis, electroadsorption, electro-Fenton, thiab electrocatalytic advanced oxidation. Cov txheej txheem no muaj ntau haiv neeg thiab txhua tus muaj nws tus kheej cov ntawv thov thiab cov npe.
Electrocoagulation-Electroflotation
Electrocoagulation, qhov tseeb, yog electroflotation, raws li cov txheej txheem coagulation tshwm sim nrog flotation. Yog li, nws tuaj yeem raug hu ua "electrocoagulation-electroflotation."
Txoj kev no yog siv los ntawm kev siv hluav taws xob sab nraud, uas tsim cov cations soluble ntawm lub anode. Cov cations no muaj cov nyhuv coagulating ntawm colloidal pollutants. Nyob rau tib lub sijhawm, cov roj hydrogen ntau ntau yog tsim los ntawm cathode nyob rau hauv lub zog ntawm lub zog, uas pab cov khoom siv flocculated nce mus rau saum npoo. Nyob rau hauv txoj kev no, electrocoagulation tiav kev sib cais ntawm cov pa phem thiab purification ntawm dej los ntawm anode coagulation thiab cathode flotation.
Siv cov hlau ua cov kua dej anode (feem ntau yog txhuas lossis hlau), Al3+ lossis Fe3+ ions tsim tawm thaum lub sij hawm electrolysis ua electroactive coagulants. Cov coagulants no ua hauj lwm los ntawm compressing lub colloidal ob txheej, destabilizing nws, thiab txuas thiab ntes colloidal hais los ntawm:
Al-3e → Al3+ lossis Fe -3e → Fe3+
Al3+ + 3H2O → Al(OH)3 + 3H+ or 4Fe2+ + O2 + 2H2O → 4Fe3+ + 4OH-
Ntawm ib sab, cov tsim electroactive coagulant M (OH) n yog hu ua soluble polymeric hydroxo complexes thiab ua raws li ib tug flocculant kom sai thiab zoo coagulate colloidal suspensions (fine oil droplets thiab mechanical impurities) nyob rau hauv cov dej khib nyiab thaum bridging thiab txuas lawv rau daim ntawv. loj aggregates, ua kom cov txheej txheem sib cais. Ntawm qhov tod tes, colloids yog compressed nyob rau hauv lub zog ntawm electrolytes xws li txhuas los yog hlau ntsev, ua rau coagulation los ntawm coulombic nyhuv los yog adsorption ntawm coagulants.
Txawm hais tias kev ua haujlwm ntawm electrochemical (lifespan) ntawm electroactive coagulants tsuas yog ob peb feeb xwb, lawv cuam tshuam rau ob txheej txheej muaj peev xwm, yog li ua rau muaj zog coagulation cuam tshuam rau colloidal hais los yog tshem tawm hais. Yog li ntawd, lawv lub peev xwm adsorption thiab kev ua haujlwm yog ntau dua li cov txheej txheem tshuaj uas muaj kev sib ntxiv ntawm txhuas ntsev reagents, thiab lawv xav tau cov nqi me me thiab muaj nqi qis dua. Electrocoagulation tsis cuam tshuam los ntawm ib puag ncig tej yam kev mob, dej kub, los yog lom impurities, thiab nws tsis muaj kev cuam tshuam sab nrog txhuas ntsev thiab dej hydroxides. Yog li ntawd, nws muaj pH dav rau kev kho cov dej khib nyiab.
Tsis tas li ntawd, kev tso tawm ntawm cov npuas me me rau ntawm qhov chaw cathode ua rau kev sib tsoo thiab sib cais ntawm colloids. Qhov ncaj qha electro-oxidation ntawm anode nto thiab indirect electro-oxidation ntawm Cl- rau hauv cov tshuaj chlorine muaj zog oxidative muaj peev xwm ntawm soluble organic tshuaj thiab txo inorganic tshuaj nyob rau hauv dej. Cov hydrogen uas tsim tawm tshiab los ntawm cathode thiab oxygen los ntawm anode muaj peev xwm redox muaj zog.
Yog li ntawd, cov txheej txheem tshuaj uas tshwm sim hauv lub tshuab electrochemical reactor yog qhov nyuaj heev. Nyob rau hauv lub reactor, electrocoagulation, electroflotation, thiab electrooxidation txheej txheem tag nrho tshwm sim ib txhij, zoo transforming thiab tshem tawm ob qho tib si yaj colloids thiab tshem tawm cov pa phem nyob rau hauv dej los ntawm coagulation, flotation, thiab oxidation.
Xingtongli GKD45-2000CVC Electrochemical DC fais fab mov
Nta:
1. AC Input 415V 3 Phase
2. yuam cua txias
3. Nrog ramp up muaj nuj nqi
4. Nrog amper teev meter thiab lub sij hawm relay
5. Kev tswj chaw taws teeb nrog 20 meter tswj cov xov hlau
Cov duab khoom:
Post lub sij hawm: Sep-08-2023
