Hauv kev kho dej khib nyiab, ob qho tib si polyaluminum chloride (PAC) thiab txhuas sulfate tau dav siv los uacoagulants. Muaj qhov sib txawv ntawm cov qauv tshuaj ntawm ob tus neeg ua haujlwm no, ua rau lawv qhov kev ua tau zoo thiab kev siv. Nyob rau hauv xyoo tas los no, PAC tau maj mam nyiam rau nws txoj kev kho mob siab thiab ceev. Hauv tsab xov xwm no, peb yuav tham txog qhov sib txawv ntawm PAC thiab txhuas sulfate hauv kev kho dej khib nyiab los pab koj xaiv kev paub ntau ntxiv.
Ua ntej, cia peb kawm txog polyaluminium chloride (PAC). Raws li inorganic polymer coagulant, PAC muaj cov solubility zoo heev thiab tuaj yeem tsim flocs sai. Nws plays lub luag hauj lwm coagulation los ntawm hluav taws xob neutralization thiab net trapping, thiab yog siv nrog flocculant PAM kom tshem tawm impurities hauv dej khib nyiab. Piv nrog txhuas sulfate, PAC muaj peev xwm ua tau zoo dua thiab cov dej zoo dua tom qab ntxuav. Lub caij no, tus nqi ntawm kev lim dej ntawm PAC yog 15% -30% qis dua aluminium sulfate. Nyob rau hauv cov nqe lus ntawm kev noj alkalinity nyob rau hauv dej, PAC muaj tsawg noj thiab muaj peev xwm txo los yog tshem tawm cov tshuaj alkaline tus neeg sawv cev.
Tom ntej no yog aluminium sulfate. Raws li ib txwm coagulant, aluminium sulfate adsorbs thiab coagulates cov pa phem los ntawm txhuas hydroxide colloids uas ua los ntawm hydrolysis. Nws qhov kev sib cais yog qhov tsis zoo, tab sis nws tsim nyog rau kev kho dej khib nyiab nrog pH ntawm 6.0-7.5. Piv nrog PAC, txhuas sulfate muaj peev xwm kho tsis tau zoo thiab cov dej huv huv, thiab tus nqi ntawm cov dej purification yog siab heev.
Nyob rau hauv cov nqe lus ntawm kev ua hauj lwm qhov ntev, PAC thiab txhuas sulfate muaj me ntsis txawv daim ntawv thov; PAC feem ntau yooj yim los lis thiab cov ntaub ntawv flocs sai, uas txhim kho kev kho mob. Aluminium sulfate, ntawm qhov tod tes, yog qeeb rau hydrolyze thiab yuav siv sij hawm ntev rau coagulate.
Aluminium sulfateyuav txo cov pH thiab alkanility ntawm cov dej kho, yog li xav tau dej qab zib los yog txiv qaub los ua kom cov nyhuv. PAC kev daws teeb meem yog nyob ze rau nruab nrab thiab tsis muaj qhov yuav tsum tau rau ib tus neeg sawv cev nruab nrab (soda lossis txiv qaub).
Hais txog kev khaws cia, PAC thiab txhuas sulfate feem ntau ruaj khov thiab yooj yim rau khaws thiab thauj. Thaum PAC yuav tsum tau muab kaw kom tsis txhob nqus dej noo thiab raug tshav ntuj.
Tsis tas li ntawd, los ntawm qhov pom ntawm corrosivity, aluminium sulfate yog ib qho yooj yim mus use tab sis ntau corrosive. Thaum xaiv cov coagulants, qhov muaj feem cuam tshuam ntawm ob qho tib si ntawm cov khoom siv kho mob yuav tsum tau txiav txim siab tag nrho.
Hauv cov ntsiab lus,Polyaluminium Chloride(PAC) thiab txhuas sulfate muaj lawv tus kheej qhov zoo thiab qhov tsis zoo hauv kev kho dej phwj tuaj. Zuag qhia tag nrho, PAC yog maj mam dhau los ua lub hauv paus coagulant vim nws cov kev ua haujlwm siab, kev kho dej khib nyiab sai thiab dav pH adaptability. Txawm li cas los xij, aluminium sulfate tseem muaj qhov zoo dua tsis tuaj yeem hloov tau raws li qee qhov xwm txheej. Yog li ntawd, thaum xaiv ib coagulant, yam xws li qhov xav tau tiag tiag, kev kho mob thiab tus nqi yuav tsum tau txiav txim siab. Xaiv qhov zoo coagulant yuav pab txhim kho kev ua haujlwm ntawm cov dej khib nyiab.
Post lub sij hawm: Oct-29-2024
