Kev kho dej siv thev naus laus zis yog qhov txuas tseem ceeb hauv kev ua kom muaj kev ruaj ntseg ntawm cov khoom siv dej, txhawb kev tiv thaiv ib puag ncig, thiab ua tiav kev txhim kho kom ruaj khov. Nws cov yam ntxwv muaj kev cuam tshuam nyob rau hauv ntau haiv neeg ntawm technologies, kev siv dav, thiab cov qauv ntawm kev txawj ntse thiab kev loj hlob ntsuab.
Cov txheej txheem ntau yam npog lub cev, tshuaj, thiab kev kho mob lom
Kev kho dej tshem tawm cov impurities ntawm dej los ntawm ntau txoj hauv kev los xyuas kom meej cov dej zoo raws li cov qauv. Lub ntsiab technologies muaj xws li:
Kev kho lub cev: Siv txoj hauv kev xws li pom, sedimentation, thiab adsorption kom tshem tawm cov khib nyiab thiab cov khoom siv colloidal, xws li siv cov xuab zeb quartz, cov pa roj carbon activated, lossis cov ntaub ntawv membrane rau kev pom.
Kev kho tshuaj lom neeg: Ua tiav coagulation thiab oxidation- txo cov tshuaj tiv thaiv los ntawm kev ntxiv cov reagents (xws li alum thiab polyaluminium chloride), hloov cov khoom tsis zoo rau hauv cov ntaub ntawv tsis raug mob lossis yooj yim sib cais.
Kev Kho Mob Biological: Siv cov kab mob kom txo qis cov pa phem, siv dav hauv kev kho cov dej phwj hauv tsev thiab cov dej khib nyiab. Cov txheej txheem ib txwm muaj xws li cov txheej txheem activated sludge thiab cov txheej txheem biofilm.
Membrane sib cais tshuab: Raws li lub hauv paus ntawm kev kho dej niaj hnub, thev naus laus zis xws li thim rov qab osmosis (RO), ultrafiltration (UF), thiab nanofiltration (NF) tuaj yeem tshem tawm cov ions, organic teeb meem, thiab cov kab mob, thiab tau siv dav hauv kev lim dej thiab kev lag luam siab - cov dej huv huv.
Kev siv ntau yam, ua haujlwm hauv nroog, kev lag luam, thiab chaw tshwj xeeb. Kev kho dej ua haujlwm pab ntau qhov tseem ceeb nyob ntawm lawv lub hom phiaj:
Kev siv dej hauv nroog thiab kev kho dej khib nyiab: Npog tag nrho cov txheej txheem los ntawm kev lim dej kom huv kom ntseeg tau cov dej phwj hauv tsev ua tau raws li cov qauv kev tso tawm, kev hloov kho tshiab thiab kev kho dua tshiab tau txhawb nqa tsis tu ncua nyob rau xyoo tas los no, thiab feem ntau ntawm cov dej rov qab siv tau tas li.
Kev kho dej hauv kev lag luam: Hauv kev lag luam xws li hluav taws xob, hluav taws xob, thiab tshuaj lom neeg, cov dej yuav tsum tau muaj siab heev, yuav tsum tau tshem tawm cov kab impurities los tiv thaiv cov khoom scaling thiab corrosion. Piv txwv li, cov chaw tsim hluav taws xob siv cov tshuaj tua kab mob los xyuas kom meej cov dej ntshiab huv boiler.
Seawater desalination thiab cov peev txheej rov qab: ntsib nrog dej tsis txaus, rov qab osmosis thev naus laus zis tau siv dav hauv seawater desalination; Nyob rau tib lub sijhawm, cov thev naus laus zis tshiab xws li phosphorus rov qab thiab siv cov khoom siv sludge tau maj mam paub txog "tig pov tseg rau hauv cov khoom muaj nqis."