Peb qhov cim qhia uas koj yuav tsum tau them sai sai thaum xaiv PAM

Polyacrylamide(PAM) yog ib qho organic polymer flocculant siv dav hauv kev kho dej. Cov ntsuas kev siv ntawm PAM suav nrog ionicity, hydrolysis degree, molecular weight, thiab lwm yam. Cov ntsuas no muaj feem cuam tshuam loj rau cov nyhuv flocculation ntawm kev kho dej. Kev nkag siab txog cov ntsuas no yuav pab koj xaiv cov khoom PAM sai nrog cov lus qhia tsim nyog.

Lonicity

Lonicity txhais tau tias seb cov saw hlau PAM molecular puas muaj cov nqi zoo lossis tsis zoo. Qib ntawm ionization muaj feem cuam tshuam loj heev rau cov nyhuv flocculation ntawm kev kho dej. Feem ntau hais lus, qhov siab dua ionicity, qhov zoo dua qhov cuam tshuam flocculation. Qhov no yog vim tias cov saw hlau PAM molecular uas muaj ionic siab nqa cov nqi ntau dua thiab tuaj yeem nqus tau cov khoom me me zoo dua, ua rau lawv sib sau ua ke los ua cov flocs loj dua.

Polyacrylamide feem ntau yog muab faib ua anionic (APAM), cationic (CPAM), thiab non-ionic (NPAM) hom raws li lawv cov ionicity. Peb hom PAM no muaj cov teebmeem sib txawv. Hauv kev siv ua haujlwm, qhov ionicity tsim nyog yuav tsum tau xaiv raws li cov yam xws li tus nqi pH ntawm cov dej kho, electronegativity, thiab concentration ntawm cov khoom me me. Piv txwv li, rau cov dej khib nyiab acidic, PAM nrog cationicity siab dua yuav tsum tau xaiv; rau cov dej khib nyiab alkaline, PAM nrog anionicity siab dua yuav tsum tau xaiv. Tsis tas li ntawd, kom ua tiav cov nyhuv flocculation zoo dua, nws kuj tuaj yeem ua tiav los ntawm kev sib xyaw PAM nrog cov degrees ionic sib txawv.

Qib ntawm Hydrolysis (rau APAM))

Qib ntawm hydrolysis ntawm PAM yog hais txog qib ntawm hydrolysis ntawm cov pab pawg amide ntawm nws cov saw molecular. Qib ntawm hydrolysis tuaj yeem faib ua qib qis, nruab nrab, thiab siab ntawm hydrolysis. PAM nrog ntau qib ntawm hydrolysis muaj cov yam ntxwv thiab kev siv sib txawv.

PAM uas muaj qib hydrolysis qis feem ntau yog siv rau kev ua kom tuab thiab ruaj khov. Nws ua rau cov kua nplaum ntau dua, ua rau cov khoom me me tawg tau zoo dua. Nws yog siv dav hauv cov kua drilling, cov tshuaj pleev xim, thiab kev lag luam zaub mov.

PAM nrog qib hydrolysis nruab nrab muaj cov nyhuv flocculation zoo thiab tsim nyog rau ntau yam kev kho dej zoo. Nws tuaj yeem sib sau ua ke cov khoom me me uas raug tshem tawm los ua cov flocs loj dua los ntawm kev nqus thiab txuas, yog li ua tiav kev sib sau ua ke sai. Nws yog siv dav hauv kev kho dej phwj hauv nroog, kev kho dej khib nyiab hauv kev lag luam, thiab kev ziab dej sludge.

PAM nrog qib hydrolysis siab muaj peev xwm adsorption thiab decolorization muaj zog thiab feem ntau siv rau hauv kev luam ntawv thiab dyeing dej khib nyiab thiab lwm yam teb. Nws tuaj yeem nqus tau zoo thiab tshem tawm cov tshuaj lom neeg hauv dej khib nyiab, xws li cov xim, cov hlau hnyav, thiab cov organic, los ntawm cov nqi thiab adsorption pawg ntawm cov saw polymer.

Qhov Hnyav Molecular

Qhov hnyav molecular ntawm PAM yog hais txog qhov ntev ntawm nws cov saw molecular. Feem ntau, qhov hnyav molecular siab dua, qhov zoo dua ntawm PAM flocculation effect. Qhov no yog vim tias PAM hnyav molecular siab tuaj yeem nqus cov khoom me me zoo dua, ua rau lawv sib sau ua ke los ua cov flocs loj dua. Tib lub sijhawm, PAM hnyav molecular siab muaj peev xwm sib txuas thiab txuas zoo dua, uas tuaj yeem txhim kho lub zog thiab kev ruaj khov ntawm floc.

Hauv kev siv ua haujlwm, qhov hnyav molecular ntawm PAM siv rau kev kho dej phwj hauv nroog thiab kev kho dej khib nyiab hauv kev lag luam xav tau cov kev cai siab dua, feem ntau yog txij li lab mus rau kaum lab. Qhov hnyav molecular ntawm PAM siv rau kev kho dej sludge dehydration yog qhov tsawg, feem ntau yog txij li lab mus rau kaum lab.

Xaus lus, cov cim qhia xws li ionicity, hydrolysis degree, thiab molecular weight yog cov yam tseem ceeb uas cuam tshuam rau kev siv PAM hauv kev kho dej. Thaum xaiv cov khoom PAM, koj yuav tsum xav txog qhov zoo ntawm dej thiab xaiv raws li PAM cov cim qhia kev siv tshuab kom tau txais cov txiaj ntsig zoo tshaj plaws ntawm flocculation, txhim kho kev ua haujlwm zoo, thiab qhov zoo ntawm kev kho dej.