Poly Aluminium Chloride tshem tawm cov kab mob hauv dej li cas?

Poly Aluminium Chloride(PAC) yog cov khoom siv tshuaj lom neeg uas tau siv dav hauv kev kho dej thiab dej khib nyiab vim nws cov txiaj ntsig zoo hauv kev tshem tawm cov kab mob. Nws cov txheej txheem ntawm kev nqis tes ua suav nrog ntau cov kauj ruam tseem ceeb uas ua rau kev ua kom huv ntawm cov dej.

Ua ntej, PAC ua raws li coagulant hauv cov txheej txheem kho dej. Coagulation yog tus txheej txheem ntawm destabilizing colloidal hais thiab suspensions nyob rau hauv dej, ua rau lawv clump ua ke thiab tsim loj hais tias flocs. PAC ua tiav qhov no los ntawm kev cuam tshuam cov nqi tsis zoo ntawm qhov chaw ntawm cov khoom colloidal, uas tso cai rau lawv los ua ke thiab tsim flocs los ntawm cov txheej txheem hu ua tus nqi neutralization. Cov flocs no yooj yim dua los tshem tawm los ntawm cov txheej txheem pom tom ntej.

Kev tsim cov flocs yog qhov tseem ceeb rau kev tshem tawm ntau yam kab mob los ntawm dej. PAC tshem tawm cov khib nyiab pov tseg, xws li cov av nplaum, silt, thiab cov organic teeb meem, los ntawm kev muab lawv tso rau hauv flocs. Cov khib nyiab pov tseg no tuaj yeem ua rau muaj dej tsis zoo hauv dej, ua rau nws pom huab lossis murky. Los ntawm agglomerating cov hais mus rau hauv loj flocs, PAC pab txhawb lawv tshem tawm thaum lub sij hawm sedimentation thiab filtration txheej txheem, ua rau cov dej ntshiab.

Tsis tas li ntawd, PAC pab tshem tawm cov kuab tshuaj organic thiab cov xim ua kom muaj xim los ntawm dej. Dissolved organic teeb meem, xws li humic thiab fulvic acids, tuaj yeem muab cov saj tsis zoo thiab tsw rau dej thiab tuaj yeem ua rau cov tshuaj tua kab mob los tsim cov tshuaj tua kab mob los ntawm cov khoom lag luam. PAC pab coagulate thiab adsorb cov organic tebchaw mus rau saum npoo ntawm cov tsim flocs, yog li txo lawv cov concentration hauv cov dej kho.

Ntxiv nrog rau cov organic teeb meem, PAC tseem tuaj yeem tshem tawm ntau yam kab mob tsis zoo los ntawm dej. Cov kab mob no tuaj yeem suav nrog cov hlau hnyav, xws li arsenic, lead, thiab chromium, nrog rau qee yam anions xws li phosphate thiab fluoride. PAC ua haujlwm los ntawm kev tsim cov hlau tsis muaj dej hydroxide precipitates lossis los ntawm adsorbing hlau ions mus rau nws qhov chaw, yog li txo lawv cov concentration hauv cov dej kho rau qib uas ua tau raws li cov qauv kev cai.

Ntxiv mus, PAC nthuav tawm qhov zoo dua lwm cov coagulants feem ntau siv hauv kev kho dej, xws li txhuas sulfate (alum). Tsis zoo li alum, PAC tsis cuam tshuam qhov pH ntawm cov dej thaum lub sij hawm coagulation txheej txheem, uas yuav pab kom txo tau qhov yuav tsum tau rau pH hloov tshuaj thiab txo tag nrho cov nqi ntawm kev kho mob. Tsis tas li ntawd, PAC tsim cov sludges tsawg dua piv rau alum, ua rau txo cov nqi pov tseg thiab kev cuam tshuam ib puag ncig.

Zuag qhia tag nrho, Poly Aluminium Chloride (PAC) yog cov coagulant muaj txiaj ntsig zoo uas ua lub luag haujlwm tseem ceeb hauv kev tshem tawm ntau yam kab mob los ntawm dej. Nws lub peev xwm los txhawb kev coagulation, flocculation, sedimentation, thiab adsorption txheej txheem ua rau nws yog ib qho tseem ceeb hauv kev kho dej thoob ntiaj teb. Los ntawm kev ua kom yooj yim tshem tawm cov khib nyiab pov tseg, yaj cov organic teeb meem, cov xim ua rau cov khoom sib txuas, thiab cov khoom tsis huv, PAC pab tsim cov dej huv huv, huv, thiab nyab xeeb uas ua tau raws li cov qauv kev cai. Nws cov nqi-zoo, yooj yim ntawm kev siv, thiab kev cuam tshuam tsawg kawg nkaus ntawm pH dej ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov nroj tsuag kho dej nrhiav kev txhim khu kev qha thiab ruaj khov rau kev lim dej.