Kuv yuav xaiv Polyacrylamide li cas?

Polyacrylamide(PAM) feem ntau tuaj yeem muab faib ua anionic, cationic, thiab nonionic raws li hom ion. Nws yog tsuas yog siv rau flocculation hauv kev kho dej. Thaum xaiv, ntau hom dej khib nyiab tuaj yeem xaiv ntau hom. Koj yuav tsum xaiv qhov zoo PAM raws li cov yam ntxwv ntawm koj cov dej phwj tuaj. Nyob rau tib lub sijhawm, koj yuav tsum tau qhia meej nyob rau hauv cov txheej txheem twg polyacrylamide yuav ntxiv thiab lub hom phiaj koj xav ua kom tiav los ntawm kev siv nws.

Cov kev qhia ntawm polyacrylamide feem ntau suav nrog qhov hnyav molecular, qib ntawm hydrolysis, ionicity, viscosity, residual monomer cov ntsiab lus, thiab lwm yam. Cov ntsuas no yuav tsum tau qhia meej raws li cov dej khib nyiab koj kho.

1. Molecular hnyav / viscosity

Polyacrylamide muaj ntau yam molecular hnyav, los ntawm qis mus rau siab heev. Molecular hnyav cuam tshuam rau kev ua haujlwm ntawm cov polymers hauv kev siv sib txawv. Lub cev hnyav molecular polyacrylamide feem ntau ua haujlwm zoo dua hauv cov txheej txheem flocculation vim tias lawv cov saw hlau polymer ntev dua thiab tuaj yeem txuas ntau cov khoom ua ke.

Lub viscosity ntawm PAM kua yog siab heev. Thaum lub ionization ruaj khov, qhov loj dua qhov hnyav molecular ntawm polyacrylamide, qhov ntau dua qhov viscosity ntawm nws cov tshuaj. Qhov no yog vim hais tias cov saw hlau macromolecular ntawm polyacrylamide yog ntev thiab nyias, thiab kev tiv thaiv rau kev txav mus rau hauv cov tshuaj yog loj heev.

2. Qib ntawm hydrolysis thiab ionicity

Lub ionicity ntawm PAM muaj kev cuam tshuam zoo rau nws cov txiaj ntsig siv, tab sis nws cov nqi tsim nyog nyob ntawm hom thiab qhov xwm txheej ntawm cov khoom siv kho mob, thiab muaj cov txiaj ntsig zoo sib txawv hauv cov xwm txheej sib txawv. Thaum lub zog ionic ntawm cov khoom kho yog siab (ntau yam tsis muaj teeb meem), ionicity ntawm PAM siv yuav tsum siab dua, txwv tsis pub nws yuav tsum qis dua. Feem ntau, cov degree ntawm anion hu ua degree ntawm hydrolysis, thiab cov degree ntawm ion feem ntau hu ua degree ntawm cation.

Yuav ua li cas xaiv polyacrylamidenyob ntawm qhov concentration ntawm colloids thiab tshem tawm cov khib nyiab hauv dej. Tom qab nkag siab cov ntsuas saum toj no, yuav ua li cas xaiv PAM tsim nyog?

1. Nkag siab txog cov dej phwj tuaj

Ua ntej, peb yuav tsum to taub lub hauv paus, xwm, muaj pes tsawg leeg, cov ntsiab lus, thiab lwm yam ntawm cov sludge.

Feem ntau hais lus, cationic polyacrylamide yog siv los kho cov organic sludge, thiab anionic polyacrylamide yog siv los kho inorganic sludge. Thaum pH siab, cationic polyacrylamide yuav tsum tsis txhob siv, thiab thaum twg, anionic polyacrylamide yuav tsum tsis txhob siv. Muaj zog acidity ua rau nws tsis tsim nyog siv anionic polyacrylamide. Thaum cov ntsiab lus ntawm sludge siab, cov khoom siv ntawm polyacrylamide yog loj.

2. Kev xaiv ionicity

Rau cov sludge uas yuav tsum tau lub cev qhuav dej hauv cov dej phwj tuaj, koj tuaj yeem xaiv cov flocculants nrog cov ionicity sib txawv los ntawm kev sim me me los xaiv cov polyacrylamide uas haum tshaj plaws, uas tuaj yeem ua tiav qhov zoo tshaj plaws flocculation nyhuv thiab txo qhov ntau npaum, txuag nqi.

3. Xaiv qhov hnyav molecular

Feem ntau hais lus, qhov siab dua qhov hnyav molecular ntawm cov khoom siv polyacrylamide, qhov viscosity ntau dua, tab sis hauv kev siv, qhov hnyav molecular ntawm cov khoom, qhov kev siv tau zoo dua. Hauv kev siv tshwj xeeb, qhov hnyav molecular ntawm polyacrylamide yuav tsum tau txiav txim siab raws li qhov tseeb daim ntawv thov kev lag luam, dej zoo thiab cov khoom siv kho mob.

Thaum koj yuav thiab siv PAM thawj zaug, nws raug nquahu kom muab cov xwm txheej tshwj xeeb ntawm cov dej phwj tuaj rau cov chaw tsim khoom flocculant, thiab peb yuav pom zoo rau hom khoom tsim nyog rau koj. Thiab xa cov qauv mus kuaj. Yog tias koj muaj kev paub ntau hauv koj qhov kev kho dej phwj tuaj, koj tuaj yeem qhia peb txog koj cov kev xav tau tshwj xeeb, daim ntawv thov kev lag luam, thiab cov txheej txheem, lossis ncaj qha muab peb cov qauv PAM koj tam sim no siv, thiab peb yuav phim koj nrog polyacrylamide txoj cai.