Dab tsi yog Ferric Chloride siv rau hauv kev kho dej?

Ferric Chlorideyog ib qho tshuaj sib xyaw nrog cov mis FeCl3. Nws yog dav siv hauv cov txheej txheem kho dej ua cov coagulant vim nws cov txiaj ntsig ntawm kev tshem tawm impurities thiab cov kab mob ntawm cov dej thiab feem ntau ua haujlwm zoo hauv dej txias dua alum. Txog 93% ntawm ferric chloride yog siv hauv kev kho dej, xws li dej khib nyiab, dej phwj tuaj, dej ua noj thiab dej haus. Ferric chloride feem ntau yog siv rau hauv cov khoom siv los ua cov tshuaj kho dej thiab cov dej khib nyiab.

Kev siv ferric chloride hauv kev kho dej:

1. Coagulation thiab Flocculation: Ib qho tseem ceeb ntawm kev siv ferric chloride hauv kev kho dej yog ua coagulant. Thaum ntxiv rau dej, ferric chloride reacts nrog dej los tsim ferric hydroxide thiab tom kawg adsorbs tshem tawm cov khoom, organic teeb meem, thiab lwm yam impurities los tsim loj dua, hnyav dua hu ua flocs. Cov flocs no tuaj yeem daws tau yooj yim dua thaum lub sij hawm sedimentation lossis pom cov txheej txheem, tso cai rau tshem tawm cov impurities ntawm dej.

2. Phosphorus Tshem Tawm: Ferric chloride muaj txiaj ntsig tshwj xeeb hauv kev tshem tawm phosphorus ntawm dej. Phosphorus yog ib qho khoom noj uas muaj nyob hauv cov dej khib nyiab, thiab ntau ntau tuaj yeem ua rau eutrophication hauv kev txais cov dej. Ferric chloride tsim cov complexes insoluble nrog phosphorus, uas tuaj yeem raug tshem tawm los ntawm nag lossis daus, pab txo qis phosphorus hauv dej.

3. Kev tshem tawm cov hlau hnyav: Ferric chloride tseem siv los tshem tawm cov hlau hnyav, xws li arsenic, lead, thiab mercury, los ntawm dej. Cov hlau no tuaj yeem ua rau muaj kuab lom heev thiab ua rau muaj kev phom sij loj rau kev noj qab haus huv yog tias muaj nyob hauv cov dej haus. Ferric chloride ua cov hlau hydroxides lossis hlau oxychlorides, uas tuaj yeem raug tshem tawm los ntawm cov txheej txheem los nag lossis lim dej, txo cov concentration ntawm cov hlau hnyav hauv dej.

4. Kev tshem tawm xim thiab ntxhiab tsw: Ferric chloride muaj txiaj ntsig zoo hauv kev tshem tawm cov xim thiab tsw ntxhiab ntawm cov dej. Nws oxidizes organic tebchaw lub luag hauj lwm rau cov xim thiab tsw, rhuav lawv mus rau hauv me me, tsis tshua pom cov khoom. Cov txheej txheem no pab txhim kho qhov zoo nkauj ntawm cov dej, ua rau nws tsim nyog rau kev haus, kev lag luam, lossis kev ua si.

5. Kev hloov kho pH: Los ntawm kev tswj cov pH, ferric chloride tuaj yeem txhim kho kev ua haujlwm ntawm lwm yam kev kho mob, xws li coagulation, flocculation, thiab tshuaj tua kab mob. Qhov zoo tshaj pH ntau yam tuaj yeem pab tsim cov xwm txheej zoo tshaj plaws rau kev tshem tawm cov impurities thiab cov kab mob hauv dej.

6. Disinfection Byproduct Control: Ferric chloride tuaj yeem pab tswj kev tsim cov tshuaj tua kab mob byproducts (DBPs) thaum kho dej. Thaum siv nrog cov tshuaj tua kab mob xws li tshuaj chlorine, ferric chloride tuaj yeem txo qhov tsim ntawm DBPs xws li trihalomethanes (THMs) thiab haloacetic acids (HAAs), uas yog cov muaj peev xwm carcinogens. Qhov no txhim kho tag nrho kev nyab xeeb thiab zoo ntawm cov dej haus.

7. Sludge Dewatering: Ferric chloride kuj tseem siv rau hauv cov txheej txheem sludge dewatering hauv cov chaw kho dej khib nyiab. Nws pab kho cov sludge los ntawm kev txhawb cov tsim ntawm loj, denser flocs, uas nyob sai sai thiab tso dej ntau npaum. Qhov no ua rau kev txhim kho dewatering kev ua tau zoo thiab txo cov sludge ntim, ua kom yooj yim dua thiab siv nyiaj ntau dua los tuav thiab pov tseg cov sludge.

Ferric Chloride ua lub luag haujlwm tseem ceeb hauv ntau yam kev kho dej, suav nrog kev coagulation, phosphorus thiab hnyav hlau tshem tawm, tshem tawm xim thiab tsw, hloov pH, tshuaj tua kab mob los ntawm kev tswj, thiab sludge dewatering. Nws versatility thiab kev ua tau zoo ua rau nws muaj txiaj ntsig zoo hauv kev kho cov dej haus thiab dej khib nyiab, pab kom muaj kev nyab xeeb, zoo, thiab kev ruaj ntseg ntawm cov khoom siv dej.