Kev xaiv cov cuab yeej kho dej kom raug yuav tsum tau xav txog cov ntsiab lus tseem ceeb xws li cov yam ntxwv ntawm cov dej zoo, lub hom phiaj kev kho mob, tus nqi -kev ua tau zoo, thiab qhov chaw nyob. Cov hauv qab no yog cov lus qhia txog kev xaiv cov txheej txheem raws li kev faib cov thev naus laus zis thev naus laus zis thiab cov xwm txheej cuam tshuam los pab koj sai sai nrhiav cov kev daws teeb meem zoo tshaj plaws.
Txiav txim siab qhov Raw Dej Zoo thiab Hom Pollutant
Cov muaj pes tsawg leeg ntawm cov pa phem txawv txawv ntawm cov dej sib txawv, cuam tshuam ncaj qha rau kev xaiv cov tshuab:
Cov dej khib nyiab hauv Cheeb Tsam: Feem ntau muaj cov organic teeb meem, nitrogen, thiab phosphorus → Activated sludge process (A²/O) los yog MBR membrane bioreactor yog nyiam rau kev tshem tawm nitrogen thiab phosphorus.
Industrial High-Concentration Organic Wastewater (piv txwv li, zaub mov thiab tshuaj) → UASB anaerobic reactor + aerobic txheej txheem ua ke yog pom zoo, vim nws yog lub zog- txuag thiab tso cai rau biogas zog rov qab.
Cov dej khib nyiab uas muaj cov hlau hnyav (xws li electroplating thiab electronics industries) → Tshuaj los nag lossis cov khoom siv hlau hnyav tuaj yeem ua tiav cov nqi tshem tawm ntau dua 99%. Siab - dej qab ntsev (xws li dej hiav txwv desalination concentrate, tshuaj khib nyiab) → Siv cov txheej txheem sib xyaw ua ke ntawm nanofiltration + thim rov qab osmosis + evaporation crystallization kom ua tiav cov peev txheej ntsev rov qab thiab ze rau - xoom paug.
Ntsuam xyuas cov nqi khiav hauj lwm thiab qhov chaw txwv
Av- txwv tsis pub cov xwm txheej (piv txwv li, hauv nroog hauv nruab nrab cov chaw kho dej khib nyiab) → Xaiv txoj kev MBR lossis MBBR biofilm, txo cov hneev taw los ntawm 30%-50% piv rau cov txheej txheem ib txwm muaj.
Cov cheeb tsam uas muaj peev xwm tu qis (piv txwv li, kev kho decentralized nyob rau hauv cov nroog nyob deb nroog) → Kev sib cuag lom oxidation + activated carbon filtration system raug pom zoo, muab kev ua haujlwm yooj yim thiab muaj zog tiv thaiv kev poob siab.
Lub zog siab -txuag thiab kev noj qab haus huv- qhov yuav tsum tau txo qis → Ib qho xoom- cov tshuaj siv dej txias txias (txheej txheem nthwv dej) tuaj yeem siv tau, txuag tau tshaj 30% ntawm cov dej.