Yuav Ua Li Cas Kho Electroplating Wastewater hauv Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Electroplating
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Yuav Ua Li Cas Kho Electroplating Wastewater hauv Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Electroplating
Classification - Dab tsi yog electroplating wastewater suav nrog
Cov txheej txheem ntawm electroplating wastewater yog complex, feem ntau yog los ntawm pre-kho cov khib nyiab ntawm plating qhov chaw, plating yaug dej, plating tom qab kho dej khib nyiab, thiab electroplating pov tseg. Raws li cov yam ntxwv ntawm nws cov pa phem, nws tuaj yeem muab faib ua cov dej khib nyiab ua ntej, chromium uas muaj cov dej khib nyiab, cyanide muaj cov dej khib nyiab, cov dej khib nyiab uas muaj lwm yam hlau hnyav, acid-base dej khib nyiab, nrog rau cov dej phwj hauv tsev thiab cov dej boiler. Electroplating rinsing dej khib nyiab feem ntau muaj ntau yam tshuaj lom xws li cyanide, hexavalent chromium, tooj liab, npib tsib xee, zinc, thiab lwm yam. Yog tias tso tawm yam tsis tau kho lossis kho yooj yim, nws yuav ua rau muaj kev hem thawj rau ib puag ncig.
Cov txheej txheem tsoos - yuav ua li cas kho cov dej khib nyiab electroplating
Vim yog lub hom phiaj ntawm ib qho kev kho technology, ntau haiv neeg thiab tsis yooj yim ntawm cov pa phem los ntawm qhov chaw tau ua rau cov txheej txheem kho tam sim no tsis tuaj yeem hloov kho ib qho los ntawm ib qho, ua rau tsis muaj txiaj ntsig thiab tsis muaj peev xwm ua tau raws li cov qauv hauv electroplating kev kho dej khib nyiab.
Tam sim no, kev kho cov dej khib nyiab electroplating siv cov txheej txheem hauv qab no: chemical los nag txoj kev (suav nrog txo kev kho cov chromium uas muaj cov dej khib nyiab thiab oxidation kev kho ntawm cyanide uas muaj cov dej khib nyiab), ion txauv txoj kev, thiab membrane ion cais txoj kev. Rau cov dej khib nyiab los ntawm cov chaw lag luam me thiab nruab nrab, cov txheej txheem kho cov pa yog faib cov dej khib nyiab rau hauv chromium uas muaj cov dej khib nyiab, cyanide muaj cov dej khib nyiab, thiab lwm cov dej khib nyiab hlau hnyav (xws li nickel muaj cov dej khib nyiab, tooj liab, thiab lwm yam). Cov chromium uas muaj dej khib nyiab yog thawj zaug txo thiab tom qab ntawd neutralized thiab precipitated. Cov cyanide uas muaj cov dej khib nyiab yog kho nrog cov oxidation theem nrab thiab tom qab ntawd neutralized thiab precipitated ua ke nrog lwm cov dej khib nyiab hnyav. Cov effluent yog lim thiab tso tawm. Kuj tseem muaj txoj hauv kev ntxiv cov khoom hnyav hlau los txhim kho tus nqi tshem tawm. Feem ntau cov tuam txhab hluav taws xob hauv tsev tau txais kev kho "tshuaj nag lossis daus txoj kev" ntawm kev sib xyaw ntawm ntau yam dej khib nyiab, uas dhau los ntawm cov txheej txheem tshuaj tiv thaiv xws li "chromium breaking cyanide breaking coagulation recipitation" kom tshem tawm ntau yam hlau hnyav ntawm cov dej khib nyiab. Txoj kev kho no tsis tuaj yeem ua tau raws li cov qauv qub emissions ruaj khov thiab tseem nyuaj rau ua raws li cov qauv tshiab nruj dua.
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