Cov cationic flocculants feem ntau yog dab tsi?

Kev kho dej yog ib qho tseem ceeb ntawm kev tswj hwm ib puag ncig, kom ntseeg tau tias dej muaj kev nyab xeeb rau kev haus thiab kev siv hauv kev lag luam. Ib qho ntawm cov ntsiab lus tseem ceeb hauv cov txheej txheem no yog kev siv cov flocculants - cov tshuaj uas txhawb kev sib sau ua ke ntawm cov khoom me me uas raug tshem tawm mus rau hauv cov pawg loj dua, lossis flocs, uas tom qab ntawd tuaj yeem yooj yim tshem tawm ntawm dej. Ntawm ntau hom flocculants, cationic flocculants muaj txiaj ntsig zoo tshwj xeeb vim lawv cov nqi zoo, uas cuam tshuam zoo nrog cov khoom me me uas muaj nqi tsis zoo uas feem ntau pom hauv cov dej khib nyiab. Tsab xov xwm no tshawb nrhiav cov cationic flocculants feem ntau siv hauv kev kho dej thiab lawv cov ntawv thov.

Cov Polyacrylamide Cationic(CPAM)

Cationic Polyacrylamides, yog cov flocculants siv dav tshaj plaws hauv kev lag luam kho dej. Rau ntau tus neeg siv, CPAM yog lawv qhov kev xaiv zoo dua. Cov polymers no muaj cov acrylamide subunits, uas tuaj yeem hloov kho kom suav nrog cov pab pawg ua haujlwm cationic. Qhov ua tau ntau yam ntawm Cationic polyacrylamides yog nyob rau hauv lawv qhov hnyav molecular thiab qhov ceev ntawm cov nqi, uas tso cai rau lawv kom raug kho rau cov ntawv thov tshwj xeeb. C-PAMs muaj txiaj ntsig zoo hauv kev kho cov dej khib nyiab hauv kev lag luam thiab cov dej ntws tawm vim lawv cov txiaj ntsig flocculation siab thiab cov kev xav tau tsawg.

Poly(diallyldimethylammonium chloride) (PolyDADMAC)

PolyDADMAC yog ib qho cationic flocculant siv dav dav uas paub txog nws qhov ceev ceev thiab kev ua haujlwm zoo hauv cov txheej txheem kho dej. Cov polymer no muaj txiaj ntsig zoo hauv cov txheej txheem coagulation thiab flocculation, ua rau nws yog ib qho kev xaiv nrov rau kev kho dej haus, dej khib nyiab, thiab cov dej khib nyiab hauv kev lag luam. PolyDADMAC ua haujlwm zoo ua ke nrog lwm cov flocculants thiab coagulants, txhim kho tag nrho cov txheej txheem kho los ntawm kev muab cov txheej txheem muaj zog rau kev sib sau ua ke thiab tshem tawm cov khoom me me.

Cov tshuaj polyamines(PA)

Polyamines yog lwm pawg ntawm cov cationic flocculants uas feem ntau siv rau hauv kev kho dej. Cov tshuaj no, uas suav nrog poly (dimethylamine-co-epichlorohydrin) thiab cov qauv zoo sib xws, qhia txog qhov ceev ntawm cationic, ua rau lawv muaj txiaj ntsig zoo rau kev tshem tawm cov khoom me me uas muaj nqi tsis zoo. Polyamines muaj txiaj ntsig zoo rau kev ua kom cov dej nyoos ntshiab, tshem tawm cov organic matter, thiab kho ntau yam dej khib nyiab hauv kev lag luam. Lawv lub peev xwm los tsim cov flocs ntom ntom ua rau lub sijhawm daws sai dua thiab txhim kho qhov tseeb ntawm cov dej kho.

Cov Ntawv Thov thiab Cov Zoo

Cov tshuaj flocculants cationic ua lub luag haujlwm tseem ceeb hauv ntau yam kev siv dej kho, txij li cov dej khib nyiab hauv nroog thiab cov dej haus kom huv mus txog rau kev tswj cov dej khib nyiab hauv kev lag luam. Lawv qhov zoo tshaj plaws yog lawv muaj peev xwm ua kom cov khoom me me uas muaj nqi tsis zoo, ua rau cov floc tsim sai thiab ua tau zoo. Qhov no ua rau cov dej ntshiab dua, txo qhov turbidity, thiab ua kom cov dej zoo dua. Tsis tas li ntawd, cov tshuaj flocculants cationic feem ntau siv ua ke nrog lwm cov tshuaj kho, xws li coagulants, los ua kom cov txheej txheem kho zoo dua thiab ua tiav cov qauv dej zoo.

Kev siv cov cationic flocculants yog qhov tseem ceeb rau cov txheej txheem kho dej niaj hnub no, muab cov kev daws teeb meem zoo thiab txhim khu kev qha rau kev sib sau ua ke thiab tshem tawm cov khoom me me. Polyacrylamides, polyamines, PolyDADMAC sawv cev rau qee qhov ntawm cov cationic flocculants feem ntau thiab zoo tshaj plaws muaj niaj hnub no. Lawv qhov kev hloov pauv tau yooj yim, kev ua haujlwm zoo, thiab kev hloov pauv tau ua rau lawv yog cov cuab yeej tseem ceeb hauv kev ua kom muaj dej huv thiab muaj kev nyab xeeb rau ntau yam kev siv.

Tau kawg, qhov kev xaiv ntawm flocculant kuj nyob ntawm tus neeg siv tus cwj pwm siv, cov khoom siv sib xyaw, ib puag ncig, thiab lwm yam. Yuav tsum ua raws li phau ntawv qhia siv khoom.