Cov khoom siv dej ntshiab muaj cov txheej txheem ntws

Cov khoom siv dej ntshiab muaj lub luag haujlwm tseem ceeb hauv kev tsim khoom niaj hnub no. Kev tsim thiab kev siv ntawm nws cov txheej txheem ntws tsis tsuas yog cuam tshuam cov khoom zoo tab sis kuj muaj kev cuam tshuam loj heev rau kev tiv thaiv ib puag ncig thiab kev siv cov peev txheej ruaj khov. Tag nrho cov txheej txheem tuaj yeem muab sau ua ob peb theem tseem ceeb, thiab kev tshawb fawb ntxiv ntawm cov theem no tuaj yeem pab peb nkag siab zoo txog cov txheej txheem kev npaj cov dej ntshiab huv.

Ua ntej, pretreatment ntawm qhov chaw dej yog ib kauj ruam tseem ceeb hauv cov txheej txheem dej ntshiab huv. Cov theem no feem ntau tshem tawm cov khib nyiab, cov av, cov tshuaj colloidal, thiab qee cov kab mob los ntawm cov dej uas siv cov txheej txheem ntawm lub cev, kom ntseeg tau tias kev ua tiav ntawm kev kho mob tom ntej. Cov khoom siv ua ntej ua ntej muaj xws li cov dej khib nyiab, cov lim dej, thiab cov khoom siv tshuaj reagent. Cov cuab yeej no ua haujlwm ua ke los ntawm cov qauv kev ua haujlwm sib txawv los txhim kho cov dej kom zoo.

Qhov thib ob, cov dej pretreated nkag mus rau qhov rov qab osmosis system, uas yog cov kauj ruam tseem ceeb hauv kev npaj dej ntshiab. Rov qab osmosis thev naus laus zis, nrog nws cov kev ua haujlwm siab, txuag hluav taws xob, thiab ib puag ncig tus phooj ywg, tuaj yeem tshem tawm cov khoom tawg feem ntau, ions, thiab cov organic teeb meem los ntawm dej. Nyob rau hauv kev kub siab, dej dhau los ntawm ib nrab -permeable membrane; Cov dej huv ntws tawm los ntawm lwm sab ntawm daim nyias nyias, thaum cov impurities khaws cia tau tawm ntawm qhov system. Cov txheej txheem no tsis tsuas yog txhim kho cov purity ntawm cov dej tab sis kuj nteg lub hauv paus ruaj khov rau kev kho mob tom ntej. Tom qab rov qab osmosis, cov dej huv tuaj yeem raug deionization kom tshem tawm cov kab ions thiab impurities ntxiv. Deionization feem ntau siv cation thiab anion pauv resins, ib txoj kev tshwj xeeb tshaj yog nyob rau hauv kev lag luam xws li electronics, kws, thiab khoom noj khoom haus, los xyuas kom meej cov khoom zaum kawg ua tau raws li cov qauv nruj.

Cov dej huv huv, tom qab kev kho kom zoo, yog khaws cia rau hauv lub tank siab, npaj rau kev faib thiab siv. Nyob rau theem no, kev saib xyuas cov dej zoo yog qhov tseem ceeb los xyuas kom meej tias cov dej huv hauv kev lag luam xa mus rau cov neeg siv tseem muaj cov ntshiab huv thiab tsis muaj paug. Thoob plaws hauv cov txheej txheem, tiag tiag - lub sijhawm saib xyuas thiab kev tshuaj xyuas cov ntaub ntawv muab kev txhawb nqa zoo rau lub kaw lus, ua kom muaj kev nyab xeeb thiab ruaj khov ntawm cov cuab yeej siv thiab ua kom muaj kev tshawb nrhiav raws sij hawm thiab daws cov teeb meem tshwm sim.

Hauv cov ntsiab lus, cov txheej txheem ntws ntawm cov khoom siv dej ntshiab muaj ntau yam kev sib tshuam thiab qhov tseem ceeb ntawm cov txheej txheem. Nrog kev txhim kho thev naus laus zis tas mus li, ntau thiab ntau cov thev naus laus zis tshiab thiab cov khoom siv tau siv rau kev npaj dej ntshiab, txhim kho kev kho dej kom zoo thiab kev lag luam, thiab muab kev ruaj ntseg dej zoo rau ntau yam lag luam. Nyob rau tib lub sijhawm, nws txhawb nqa ib puag ncig kev ruaj ntseg thiab tsav lub zej zog mus rau ib qho chaw ntsuab thiab ntau tus phooj ywg ib puag ncig yav tom ntej.