Polyacrylamide(Pam) yog ib qho organic polymer flocculant dav siv nyob rau hauv lub tshav puam kev kho mob. Cov ntsuas kev ua haujlwm ntawm Pam suav nrog ionicity, hnyav hnyav, thiab lwm yam Cov ntsuas no muaj kev cuam tshuam loj ntawm cov dej flocculation ntawm kev kho cov dej. To taub cov ntsuas no yuav pab koj xaiv cov khoom lag luam PAM nrog cov lus qhia tshwj xeeb.
Ua kev ua neej
Lonicity hais txog seb PAM molecular charries muaj nqi zoo lossis tsis zoo. Kev ionization muaj kev cuam tshuam tseem ceeb ntawm kev kho flocculation ntawm kev kho cov dej. Feem ntau hais lus, ntau dua qhov ionicity, qhov zoo dua lub flocculation cuam tshuam. Qhov no yog vim hais tias qhov kev siv roj molecular heev nqa cov nqi ntau dua thiab tuaj yeem nqus tau cov nqi raug tshem tawm ntau dua, ua rau lawv sib sau ua ke los ua cov flocs loj dua.
Polyacrylamide feem ntau muab faib ua anionic (APAM), Cationic (Cationic (CგATORIC), thiab tsis-ionic (NPAM) hom kev ua ionicity. Peb hom no muaj cov teebmeem sib txawv. Hauv kev siv cov tswv yim, qhov tsim nyog ionicity xav tau xaiv raws li cov pH nqi ntawm cov tshuaj kho, lub electrations electronitivity, thiab concentration ntawm kev raug tshem tawm. Piv txwv li, rau acidic dej khib nyiab, Pam nrog cov lus tseem ceeb yuav tsum tau xaiv; Rau Alkaline Wastewater, Pam nrog cov anionicity ntau dua yuav tsum raug xaiv. Ib qho ntxiv, kom ua tiav cov txiaj ntsig flocculation zoo dua, nws kuj tuaj yeem ua tiav los ntawm kev sib xyaw ua ke nrog kev sib txawv ionic degrees.
Qib ntawm hydrolysis (rau Apam)
Cov degree ntawm hydrolysis ntawm PAM yog hais txog qib ntawm cov pab pawg uas yog cov pab pawg uas sawv daws. Cov degree ntawm hydrolysis tuaj yeem raug faib rau hauv qis, nruab nrab, thiab theem siab ntawm hydrolysis. Pam nrog cov qib sib txawv ntawm hydrolysis muaj cov khoom sib txawv thiab siv.
Pam nrog tsawg degree ntawm hydrolysis yog tsuas yog siv rau thickening thiab ruaj khov. Nws nce lub viscosity ntawm kev daws teeb meem, tso cai rau kev txwv kom tsis zoo dua. Nws yog dav siv nyob rau hauv drilling kua, tsho xim, thiab kev lag luam khoom noj.
Pam nrog nruab nrab qib ntawm hydrolysis muaj cov txiaj ntsig flocculation zoo thiab haum rau ntau yam dej kho kom zoo. Nws tuaj yeem sib sau ua ke los tsim cov flocs loj dua los ntawm kev kos duab thiab cov nkauj nyab, yog li ua tiav kev sib haum xeeb. Nws yog dav siv nyob rau hauv lub teb chaws hauv nroog dej phwj dej, kev kho dej nyab xeeb, thiab sludge lub cev qhuav dej.
Pam nrog qib siab ntawm hydrolysis muaj cov adsorption thiab cov peev xwm txiav tawm thiab feem ntau siv hauv kev luam ntawv thiab zas dej ua kom dej thiab lwm daim teb. Nws tuaj yeem zoo adsorb thiab tshem tawm cov teeb meem phom sij hauv dej, cov hlau hnyav, thiab cov muaj teeb meem organic, los ntawm cov pab pawg muaj teeb meem thiab cov pab pawg adsorption ntawm cov pob zeb polymer.
Molecular hnyav
Qhov hnyav molecular ntawm PAM yog hais txog qhov ntev ntawm nws cov molecular saw. Feem ntau, siab dua cov molecular hnyav, qhov zoo dua cov flocculation cuam tshuam ntawm PAM. Qhov no yog vim tias siab molecular hnyav Pam tuaj yeem zoo adsorb exprended hais, ua rau lawv sib sau ua ke los tsim cov flocs loj dua. Nyob rau tib lub sijhawm, siab molecular hnyav Pam tau zoo dua kev sib raug zoo thiab hloov kho pob zeb, uas tuaj yeem txhim kho lub zog thiab ruaj khov ntawm floc.
Hauv kev siv cov tswv yim, qhov hnyav molecular ntawm PAM siv rau nroog dej phwj thiab muaj kev muaj kev lag luam kom tau muaj ntau lab, feem ntau xws li lab los ua kaum ntawm ntau lab. Lub cev hnyav molecular yuav tsum tau ntawm PAM siv rau kev kho kom tsis txhob muaj lub cev qhuav dej yog qhov tsawg, feem ntau muaj ntau lab los ntawm ntau lab.
Hauv kev xaus, qhov ntsuas xws li ionicity, hydrolysis degree, thiab molhologyright degree uas cuam tshuam rau kev siv cov txiaj ntsig ntawm cov dej kho. Thaum xaiv Pam cov khoom lag luam, koj yuav tsum txiav txim siab txog cov dej tsis zoo thiab xaiv raws li cov txuj ci frocculation kom tau txais kev ua haujlwm zoo tshaj plaws, thiab kev ua tau zoo ntawm cov dej kho.
Lub Sijhawm Post: Jun-28-2024