Cov thev naus laus zis kho dej khib nyiab muaj xws li sedimentation, pom, flocculation, biodegradation, thiab electrolytic oxidation. Thaum cov txheej txheem electrolytic siv los kho cov dej khib nyiab, cov electrode tsis tsuas yog ua lub luag haujlwm ntawm kev xa hluav taws xob tam sim no tab sis kuj tseem ua lub luag haujlwm catalytic hauv oxidative degradation ntawm cov organic teeb meem yam tsis ua rau cov pa phem thib ob. Nws yog hu ua ntsuab dej kho tshuab. Rau cov dej khib nyiab uas tsis tuaj yeem kho nrog biodegradation, electrolytic oxidation feem ntau muaj qhov cuam tshuam loj. Yog li, electrolytic dej kho tshuab tau dhau los ua kev tshawb fawb hotspot hauv kev kho dej thiab tau siv ntau thiab ntau dua. Lub hauv paus ntsiab lus ntawm electrolytic dej kho tshuab yog ua kom muaj kuab paug nyob rau hauv ncaj qha electrochemical tshua los yog indirect electrochemical conversion ntawm electrodes, uas yog, ncaj qha electrolysis los yog indirect electrolysis.
(1) Direct electrolysis yog hais txog kev tshem tawm cov pa phem ncaj qha los ntawm cov dej khib nyiab los ntawm oxidation lossis txo cov electrodes. Direct electrolysis tuaj yeem muab faib ua cov txheej txheem anode thiab txheej txheem cathode. Cov txheej txheem anodic yog oxidation ntawm cov pa phem rau ntawm qhov chaw ntawm lub anode los hloov lawv mus rau hauv cov tshuaj lom neeg tsawg lossis cov khoom siv biodegradable yooj yim, thiab txawm tias cov khoom tsis zoo ntawm cov organic, thiaj li ua tiav lub hom phiaj ntawm kev txo thiab tshem tawm cov pa phem. Cov txheej txheem cathodic yog txo thiab tshem tawm cov pa phem ntawm qhov chaw ntawm cathode. Nws yog tsuas yog siv rau kev txo qis thiab dehalogenation ntawm halogenated hydrocarbons thiab rov qab los ntawm cov hlau hnyav.
(2) Indirect electrolysis yog hais txog kev siv cov tshuaj electrochemically tsim redox raws li reactants los yog catalysts los hloov cov pa phem rau hauv cov khoom uas tsis muaj toxicity. Indirect electrolysis muab faib ua cov txheej txheem thim rov qab thiab cov txheej txheem irreversible. Cov txheej txheem thim rov qab (nruab nrab electrochemical oxidation) yog hais txog electrochemical regeneration thiab recycling ntawm redox compounds nyob rau hauv cov txheej txheem electrolytic. Cov txheej txheem irreversible hais txog cov txheej txheem ntawm oxidizing organic teeb meem xws li chlorate, hypochlorite, H2O2, thiab O3, uas yog tsim los ntawm ib tug irreversible electrochemical cov tshuaj tiv thaiv, thiab nws kuj siv tau cov tshuaj electrochemical los tsim muaj zog oxidizing intermediates. , suav nrog solvated electrons, HO, HO2, O2- thiab lwm pab pawg.
Cov cuab yeej tshiab ntawm kev kho dej electrolytic tsis tas yuav ntxiv cov tshuaj, muaj cov khoom siv me me, cov hneev taw me me, thiab tsis muaj kev ua qias tuaj, thiab tau siv los kho cov dej khib nyiab uas muaj cov pa phem xws li hydrocarbons, alcohols, aldehydes, ethers, thiab phenols. . Kev tshem tawm ntawm COD feem ntau yog nyob ntawm cov tshuaj tiv thaiv oxidation ntawm qhov chaw anode, uas ncaj qha oxidizes thiab degrades cov organic teeb meem ntawm anode nto, kom cov organic teeb meem nyob rau hauv cov dej phwj yog ncaj qha los yog indirectly hloov dua siab tshiab rau hauv CO2 thiab dej los ntawm electrochemical conversion. Lub peev xwm anode yuav tsum siab tshaj qhov muaj peev xwm decomposition ntawm cov organic teeb meem, yog li cov organic oxide oxidation thiab oxygen evolution ntawm ob qho kev sib tw tshwm sim tshwm sim ntawm lub anode. Cov duab ntawm anode muaj nyob rau hauv ntau hom xws li phaj hom, raj hom, thiab mesh hom, uas tuaj yeem xaiv los ntawm cov neeg siv khoom, thiab qhov zoo yog txhim khu kev qha. titanium matrix yog reusable.
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