Polyaluminium chloride tshem tawm cov kab mob hauv dej li cas?

Polyaluminium Chloride, feem ntau abbreviated li PAC, yog ib hom inorganic polymer coagulant. Nws yog tus cwj pwm los ntawm nws cov nqi siab ceev thiab cov qauv polymeric, uas ua rau nws muaj txiaj ntsig zoo hauv coagulating thiab flocculating cov kab mob hauv dej. Tsis zoo li cov tshuaj coagulants ib txwm muaj xws li alum, PAC ua haujlwm zoo thoob plaws pH ntau dua thiab tsim cov khoom lag luam tsawg dua, ua rau nws muaj kev nyab xeeb rau lwm tus.

Mechanism ntawm Action

Lub luag haujlwm tseem ceeb ntawm PAC hauv kev kho dej yog ua kom tsis muaj zog thiab sib sau ua ke zoo tshem tawm cov khoom, colloids, thiab cov organic teeb meem. Cov txheej txheem no, hu ua coagulation thiab flocculation, tuaj yeem tawg mus rau ntau theem:

1. Coagulation: Thaum PAC ntxiv rau hauv dej, nws cov khoom siv hluav taws xob ntau polyaluminium ions neutralize cov nqi tsis zoo nyob rau saum npoo ntawm cov khoom raug tshem tawm. Qhov no neutralization txo cov quab yuam ntawm cov khoom, cia lawv los ze zog ua ke.

2. Flocculation: Tom qab coagulation, cov neutralized particles aggregate tsim flocs loj. Lub polymeric xwm ntawm PAC pab nyob rau hauv bridging cov hais, tsim flocs loj heev uas yuav tshem tau yooj yim.

3. Sedimentation thiab Filtration: Cov flocs loj tsim thaum lub sij hawm flocculation nyob sai heev vim lub ntiajteb txawj nqus. Cov txheej txheem sedimentation zoo tshem tawm ib feem tseem ceeb ntawm cov kab mob. Cov flocs ntxiv tuaj yeem raug tshem tawm los ntawm kev pom, ua rau cov dej ntshiab thiab huv.

Qhov zoo ntawm PAC

PACmuaj ntau yam zoo dua li cov tshuaj coagulants, ua rau nws muaj koob meej hauv kev kho dej:

- Kev ua tau zoo: PAC muaj txiaj ntsig zoo hauv kev tshem tawm ntau yam kab mob, suav nrog cov khib nyiab pov tseg, cov khoom organic, thiab qee qhov hnyav hlau. Nws efficiency txo qhov xav tau ntawm cov tshuaj ntxiv thiab cov txheej txheem.

- Ntau yam pH: Tsis zoo li qee cov coagulants uas xav tau kev tswj pH meej, PAC ua haujlwm tau zoo thoob plaws pH spectrum, ua kom yooj yim rau kev kho mob.

- Txo Sludge Production: Ib qho txiaj ntsig tseem ceeb ntawm PAC yog qhov txo qis ntawm sludge generated thaum kho. Qhov kev txo qis no txo ​​cov nqi pov tseg thiab txo qhov cuam tshuam ib puag ncig.

- Tus Nqi-Kev Ua Tau Zoo: Thaum PAC tuaj yeem muaj tus nqi siab dua piv rau qee cov tshuaj coagulants, nws cov kev ua tau zoo dua thiab cov kev xav tau qis dua feem ntau ua rau tag nrho cov nqi txuag rau cov chaw kho dej.

PAC Flocculants sawv cev rau kev nce qib tseem ceeb hauv kev kho dej thev naus laus zis. Nws lub peev xwm los tshem tawm cov kab mob zoo, ua ke nrog cov txiaj ntsig ntawm ib puag ncig thiab kev lag luam, ua haujlwm PAC ua lub hauv paus hauv kev nrhiav dej huv thiab nyab xeeb. Raws li ntau lub zej zog thiab kev lag luam tau txais qhov kev daws teeb meem tshiab no, txoj hauv kev rau kev noj qab haus huv thiab kev noj qab haus huv yav tom ntej yuav pom tseeb dua.