Kuv yuav xaiv hom Polyacrylamide li cas?

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

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

1. Qhov hnyav molecular / viscosity

Polyacrylamide muaj ntau yam qhov hnyav molecular, los ntawm qis mus rau siab heev. Qhov hnyav molecular cuam tshuam rau kev ua tau zoo ntawm cov polymers hauv ntau daim ntawv thov. Polyacrylamide qhov hnyav molecular siab feem ntau ua haujlwm tau zoo dua hauv cov txheej txheem flocculation vim tias lawv cov saw polymer ntev dua thiab tuaj yeem txuas ntau cov khoom ua ke.

Qhov 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 kua. Qhov no yog vim hais tias cov saw hlau macromolecular ntawm polyacrylamide yog ntev thiab nyias, thiab qhov tsis kam rau kev txav mus los hauv cov kua yog loj heev.

2. Qib ntawm hydrolysis thiab ionicity

Qhov ionicity ntawm PAM muaj feem cuam tshuam loj heev rau nws cov txiaj ntsig siv, tab sis nws tus nqi tsim nyog nyob ntawm hom thiab qhov xwm txheej ntawm cov khoom siv kho, thiab muaj cov nqi zoo sib txawv hauv ntau qhov xwm txheej. Thaum lub zog ionic ntawm cov khoom siv kho siab (ntau cov khoom inorganic), qhov ionicity ntawm PAM siv yuav tsum siab dua, txwv tsis pub nws yuav tsum qis dua. Feem ntau, qib ntawm anion hu ua qib ntawm hydrolysis, thiab qib ntawm ion feem ntau hu ua qib ntawm cation.

Yuav ua li cas xaiv polyacrylamidenyob ntawm qhov concentration ntawm colloids thiab cov khoom seem hauv dej. Tom qab nkag siab txog cov cim qhia saum toj no, yuav ua li cas xaiv PAM tsim nyog?

1. Nkag siab txog qhov chaw ntawm cov dej phwj tuaj

Ua ntej, peb yuav tsum nkag siab txog qhov chaw, qhov xwm txheej, cov khoom sib xyaw, cov khoom khov, 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 cov inorganic sludge. Thaum pH siab, cationic polyacrylamide yuav tsum tsis txhob siv, thiab thaum , anionic polyacrylamide yuav tsum tsis txhob siv. Cov kua qaub ntau ua rau nws tsis haum siv anionic polyacrylamide. Thaum cov khoom khov ntawm sludge siab, qhov ntau ntawm polyacrylamide siv yog loj.

2. Kev xaiv ntawm ionicity

Rau cov sludge uas yuav tsum tau qhuav dej hauv kev kho dej phwj tuaj, koj tuaj yeem xaiv cov flocculants nrog cov ionicity sib txawv los ntawm kev sim me me los xaiv cov polyacrylamide tsim nyog tshaj plaws, uas tuaj yeem ua tiav cov txiaj ntsig zoo tshaj plaws ntawm flocculation thiab txo cov koob tshuaj, txuag cov nqi.

3. Kev xaiv qhov hnyav ntawm cov molecular

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

Thaum koj yuav thiab siv PAM thawj zaug, nws raug pom zoo kom muab qhov xwm txheej tshwj xeeb ntawm cov dej phwj rau lub chaw tsim khoom flocculant, thiab peb yuav pom zoo hom khoom tsim nyog dua rau koj. Thiab xa cov qauv rau kev sim. Yog tias koj muaj ntau yam kev paub hauv koj txoj kev kho dej phwj, koj tuaj yeem qhia rau peb koj cov kev xav tau tshwj xeeb, cov teb thov, thiab cov txheej txheem, lossis ncaj qha muab cov qauv PAM uas koj tab tom siv rau peb, thiab peb yuav phim koj nrog cov polyacrylamide zoo.