Vim li cas cov flocculants thiab coagulants xav tau hauv dej phwj?

FlocculantsThiab coagulants ua si tsis zoo tshaj plaws hauv cov txheej txheem dej phwj tuaj, ua rau tshem tawm cov kev tshem tawm ntawm cov khib nyiab, cov kab mob organic, thiab lwm yam dej paug los ntawm cov dej qias neeg. Lawv qhov tseem ceeb nyob hauv lawv lub peev xwm los txhim kho kev ua haujlwm ntawm ntau txoj kev kho cov dej huv uas tuaj yeem raug rho tawm kom nyab xeeb rau hauv ib puag ncig lossis rov qab siv rau ntau lub hom phiaj.

Coagulants feem ntau yog hais txog txhuas lossis ferric cov tebchaw, xws li txhuas sulfate, polyaluminum chloride thiab polyfer sulfate. Flocculants xa mus rau cov organic polymers, xws li polyacrylamide, poly (diallylimiamonium chloride), thiab lwm yam tuaj yeem siv ib tus zuj zus lossis ua ke.

Particle agglomeration: dej phwj vov muaj ntau cov kab ke raug tshem tawm, suav nrog cov organic teeb meem, cov kab mob, thiab lwm yam tsis huv. Flocculants thiab coagulants pab txhawb kev sib sau ua ke ntawm cov lus no rau hauv loj dua, denser flocs.Tab kaumUa haujlwm los ntawm nruab nrab cov nqi tsis zoo ntawm cov nqi tsis zoo, tso cai rau lawv tuaj ua ke thiab tsim cov pawg loj dua. Flocculants, ntawm qhov tod tes, txhawb nqa kev tsim ntawm cov flocs loj dua los ntawm bridging ntawm cov lus lossis los ntawm kev ua rau lawv sib tsoo thiab ua rau ib leeg sib tsoo.

Txhim kho kev sib luag: ib zaug cov hais tau agglomerated rau hauv cov flocs loj dua, lawv txiav txim siab kom muaj kev sib cais nrog kev sib cais lossis lwm yam kev sib cais. Tus txheej txheem no, hu ua sedimentation, vim tias nws tso cai rau kev tshem tawm cov khib nyiab thiab lwm yam kev cuam tshuam los ntawm cov dej khib nyiab. Flocculants thiab coagulants txhim kho los ntawm kev nce qhov loj thiab ntom ntawm flocs, yog li ceev cov txheej txheem sedimentation thiab txhim kho cov ntshiab ntawm cov dej kho.

Kev siv cov khoom phwj tuaj: Hauv qee cov dej phwj tuaj kho, kev ua haujlwm tau ua haujlwm ua kev kho mob ntawm qib siab rau kev tshem tawm thiab tsis txaus ntseeg. Flocculants thiab coagulants pab hauv kev tsim los ntawm kev tsim cov khoom loj uas tau yooj yim dua kom ntes thiab tshem tawm ntawm dej. Qhov kev ua tau zoo no hauv cov qauv huv uas tau raws cov qauv nruj thiab muab rho tawm kom nyab xeeb lossis siv ntau yam kev siv dej lossis cov txheej txheem.

Kev tiv thaiv kev tiv thaiv: Hauv kev kho cov txheej txheem xws li membrane pom thiab thim osmoses thiab racking osmbranes tuaj yeem txo qis kev ua haujlwm thiab nce cov kev xav tau. Flocculants thiab co co kev pab hauv kev tiv thaiv fouling los ntawm kev txhawb nqa cov kev tshem tawm ntawm cov lus no ua ntej lawv mus txog rau theem ua kom pom tseeb. Qhov no pab kom ncua lub neej ntawm piltration cov cai thiab tswj hwm kev ua haujlwm zoo ib yam nkaus.

Flocculants thiab cov coagulants yog qhov tsis muaj nqis ntawm cov dej phwj. Lawv lub peev xwm los txhawb cov particle agglomeration, txhim kho kev daws teeb meem thiab kev tiv thaiv kev siv tshuaj, thiab kev tiv thaiv kev ua haujlwm ntawm cov dej phwj tuaj.