Introduction to Zero Discharge of Industrial Wastewater Treatment
May 27, 2022
"Zero discharge" txhais tau hais tias tom qab cov dej ua lag luam tau rov ua dua tshiab, DTRO membrane rov ua dua tag nrho (ntau dua 99 feem pua) ntawm cov dej khib nyiab siab uas muaj cov ntsev thiab cov pa phem rau rov siv dua, thiab tsis muaj cov kua dej pov tseg tawm hauv lub hoobkas. Cov ntsev thiab cov kuab paug hauv dej hiav txwv yog concentrated thiab crystallized los ntawm MVPC evaporator thiab tso tawm, thiab xa mus rau cov chaw kho mob pov tseg raws li cov khoom siv raw khoom siv rau kev pov tseg lossis rov ua dua tshiab raws li cov khoom siv.
Vim tias qhov xwm txheej tsis zoo nyob hauv kuv lub tebchaws thiab muaj kev ua qias tuaj ntau zuj zus, Lub Chaw Tiv Thaiv Ib puag ncig kuj tau ua kom xoom tso tawm cov dej pov tseg hauv ntau qhov kev lag luam, thiab ntau tus neeg siv khoom nug txog xoom paug.
Qhov kev daws teeb meem ntawm xoom-tso tawm cov dej khib nyiab yog ib txoj haujlwm ua haujlwm. Ua ntej, nyob rau hauv lub engineering tsim theem los yog thaum lub sij hawm ua hauj lwm txheej txheem, cov dej efficiency yog zoo dua thiab cov dej ntau lawm yog txo los ntawm optimizing lub internal txheej txheem ntawm lub Hoobkas thiab txais yuav cov txheej txheem txuag dej. Thiab kev siv rov qab osmosis membrane (RO), ultrafiltration (UF), DTRO daim nyias nyias (SWRO) thiab lwm yam thev naus laus zis, tom qab cov dej khib nyiab ntau lawm tau rov ua dua tshiab, cov dej qab ntsev uas tseem tshuav yog siv los ntawm evaporation. Tom qab cov dej khib nyiab siab muaj ntsev raug kho los ntawm cov txheej txheem evaporation, cov dej distilled by-products nrog cov ntsiab lus ntsev ntawm 90 feem pua -95 feem pua thiab 5-10mg/L feem ntau tuaj yeem rov qab tau.
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