Kev siv hluav taws xob los ntxuav cov dej khib nyiab (Electrocoagulation - EC) yog ib txoj kev siv hluav taws xob los tshem tawm cov pa phem ntawm cov dej khib nyiab. Nws yog siv lub zog hluav taws xob DC los yaj cov electrodes uas tau muab pov tseg, thiab tom qab ntawd tso cov hlau ions uas sib xyaw nrog cov pa phem. Txoj kev no tau nrov vim nws ua haujlwm tau zoo, tsis ua rau ib puag ncig puas tsuaj, thiab siv tau ntau yam hauv kev kho ntau hom dej khib nyiab.
Cov Ntsiab Cai ntawm Electrocoagulation
Hauv kev siv hluav taws xob electrocoagulation, ib qho hluav taws xob raug xa mus rau hauv cov hlau electrodes uas nyob hauv dej khib nyiab. Lub anode (positive electrode) yaj, thiab tso cov hlau cations xws li txhuas lossis hlau rau hauv dej. Cov hlau ions no ua rau cov pa phem hauv dej, tsim cov hydroxides uas tsis yaj uas sib sau ua ke thiab yooj yim tshem tawm. Lub cathode (negative electrode) tsim cov roj hydrogen, uas pab ua kom cov khoom sib xyaw ua ke ntab mus rau saum npoo av kom skimming.
Cov txheej txheem tag nrho tuaj yeem muab sau ua ke hauv cov kauj ruam hauv qab no:
Electrolysis: Lub zog fais fab dc siv rau cov electrodes, ua rau lub anode yaj thiab tso cov hlau ions.
Kev Coagulation: Cov hlau ions uas tso tawm los ua rau cov nqi ntawm cov khoom me me thiab cov kuab paug uas yaj, ua rau muaj cov pob zeb loj dua.
Flotation: Cov pa roj hydrogen uas tsim tawm ntawm cathode txuas rau cov aggregates, ua rau lawv ntab rau saum npoo.
Kev Sib Cais: Cov sludge uas ntab yog tshem tawm los ntawm skimming, thaum cov sludge uas tau teeb tsa yog sau los ntawm hauv qab.
Cov txiaj ntsig ntawm DC Power Supply hauv Electrocoagulation
Kev Ua Haujlwm Zoo: kev siv fais fab dc tso cai rau kev tswj hwm qhov tam sim no thiab qhov hluav taws xob siv, ua kom zoo dua qhov kev yaj ntawm cov electrodes thiab ua kom muaj kev sib xyaw ua ke ntawm cov khoom tsis huv.
Yooj Yim: Kev teeb tsa rau electrocoagulation siv DC fais fab mov yog qhov yooj yim heev, muaj cov khoom siv fais fab, electrodes, thiab chav tshuaj tiv thaiv.
Kev Phooj Ywg Ib puag ncig: Tsis zoo li cov tshuaj coagulation, electrocoagulation tsis tas yuav ntxiv cov tshuaj sab nraud, txo qhov kev pheej hmoo ntawm kev ua qias tuaj theem ob.
Kev Siv Tau Ntau Yam: EC tuaj yeem kho ntau yam kab mob sib kis, suav nrog cov hlau hnyav, cov organic sib xyaw, cov khoom seem, thiab txawm tias cov kab mob.
Cov Kev Siv Electrocoagulation Hauv Kev Kho Dej Khib Nyhiab
Cov Dej Pov Tseg Hauv Kev Lag Luam: Kev siv hluav taws xob los kho cov dej pov tseg hauv kev lag luam uas muaj cov hlau hnyav, cov xim pleev xim, cov roj, thiab lwm yam kuab paug uas nyuaj. Cov lag luam xws li cov ntaub, electroplating, thiab cov tshuaj tau txais txiaj ntsig los ntawm EC lub peev xwm los tshem tawm cov tshuaj lom thiab txo cov tshuaj oxygen xav tau (COD).
Cov Dej Khib Nyhiab Hauv nroog: EC siv tau ua txoj kev kho dej khib nyhiab thawj zaug lossis thib ob, pab tshem tawm cov khoom khov uas raug tshem tawm, phosphates, thiab cov kab mob. Nws ua kom cov dej kho zoo dua, ua rau nws tsim nyog rau kev tso tawm lossis rov siv dua.
Cov Dej Nag Ua Liaj Ua Teb: EC muaj peev xwm kho cov dej ntws ua liaj ua teb uas muaj cov tshuaj tua kab, chiv, thiab cov organic. Daim ntawv thov no pab txo qhov cuam tshuam ntawm kev ua liaj ua teb rau cov dej nyob ze.
Kev Kho Dej Nag: EC tuaj yeem siv rau cov dej nag ntws kom tshem tawm cov av qias neeg, cov hlau hnyav, thiab lwm yam kuab paug, tiv thaiv lawv kom tsis txhob nkag mus rau hauv cov dej ntuj.
Cov Kev Ntsuas Ua Haujlwm thiab Kev Txhim Kho
Kev ua haujlwm ntawm electrocoagulation nyob ntawm ntau yam kev ua haujlwm, suav nrog:
Qhov Ceev Tam Sim No: Qhov ntau ntawm qhov tam sim no siv rau ib cheeb tsam ntawm lub electrode cuam tshuam rau qhov nrawm ntawm cov hlau ions tso tawm thiab tag nrho cov txiaj ntsig ntawm cov txheej txheem. Qhov ceev tam sim no siab dua tuaj yeem ua rau kev kho mob zoo dua tab sis kuj tseem yuav ua rau siv zog ntau dua thiab electrode hnav.
Cov Khoom Siv Hluav Taws Xob: Kev xaiv cov khoom siv hluav taws xob (feem ntau yog txhuas lossis hlau) cuam tshuam rau hom thiab kev ua haujlwm ntawm kev coagulation. Cov ntaub ntawv sib txawv raug xaiv raws li cov kuab paug tshwj xeeb uas muaj nyob rau hauv cov dej khib nyiab.
pH: Tus pH ntawm cov dej khib nyiab cuam tshuam rau qhov yaj thiab kev tsim cov hlau hydroxides. Cov pH zoo tshaj plaws ua kom muaj kev ua haujlwm zoo tshaj plaws thiab kev ruaj khov ntawm cov pob zeb uas tsim.
Kev Teeb tsa Electrode: Qhov kev npaj thiab qhov sib nrug ntawm cov electrodes cuam tshuam rau kev faib tawm ntawm lub zog hluav taws xob thiab kev sib xws ntawm cov txheej txheem kho. Kev teeb tsa kom zoo ua rau kev sib cuag ntawm cov hlau ions thiab cov pa phem txhim kho.
Lub Sijhawm Ua Haujlwm: Lub sijhawm ntawm kev siv hluav taws xob coagulation cuam tshuam rau qhov dav ntawm kev tshem tawm cov pa phem. Lub sijhawm ua haujlwm txaus ua kom ntseeg tau tias cov pa phem coagulation tiav thiab sib cais.
Cov Teeb Meem thiab Cov Lus Qhia Yav Tom Ntej
Txawm hais tias nws muaj txiaj ntsig zoo, electrocoagulation ntsib qee qhov teeb meem:
Kev Siv Hluav Taws Xob: Qhov xwm txheej txi ntawm lub anode ua rau nws maj mam noj, xav tau kev hloov pauv lossis rov tsim dua tshiab.
Kev Siv Hluav Taws Xob: Txawm hais tias DC fais fab mov tso cai rau kev tswj hwm meej, nws tuaj yeem siv hluav taws xob ntau, tshwj xeeb tshaj yog rau kev ua haujlwm loj.
Kev Tswj Xyuas Sludge: Cov txheej txheem tsim cov sludge uas yuav tsum tau tswj hwm thiab pov tseg kom zoo, ntxiv rau cov nqi ua haujlwm.
Kev tshawb fawb thiab kev txhim kho yav tom ntej lub hom phiaj yog los daws cov teeb meem no los ntawm:
Kev Txhim Kho Cov Khoom Siv Electrode: Tsim cov khoom siv electrode uas ruaj khov thiab ua haujlwm tau zoo dua los txo kev siv thiab txhim kho kev ua haujlwm.
Kev Siv Hluav Taws Xob Zoo Tshaj Plaws: Siv cov txheej txheem siv hluav taws xob siab heev, xws li pulsed DC, los txo kev siv hluav taws xob thiab txhim kho kev kho mob kom zoo.
Txhim Kho Kev Tswj Xyuas Sludge: Tsim cov txheej txheem tshiab rau kev txo thiab ua kom sludge muaj nqis, xws li hloov sludge mus ua cov khoom siv tau.
Xaus lus, lub zog fais fab DC ua lub luag haujlwm tseem ceeb hauv kev siv hluav taws xob los kho cov dej khib nyiab, muab kev daws teeb meem zoo, zoo rau ib puag ncig, thiab ntau yam rau kev tshem tawm ntau yam kuab paug. Nrog rau kev nce qib thiab kev ua kom zoo dua, kev siv hluav taws xob los kho cov dej khib nyiab tau npaj los ua ib txoj hauv kev zoo dua thiab ruaj khov rau kev daws teeb meem kev kho cov dej khib nyiab thoob ntiaj teb.
Lub sijhawm tshaj tawm: Lub Xya Hli-12-2024
