Sida aan wada ognahay, noocyada kala duwan ee polyacrylamide waxay leeyihiin noocyo kala duwan oo daaweynta wasakhda ah iyo saameyn kala duwan. Markaa polyacrylamide waa walxo cadcad, sidee loo kala saaraa qaabkeeda?
Waxaa jira 4 siyaabood oo fudud oo lagu kala saari karo qaabka polyacrylamide:
1. Dhammaanteen waan ognahay in polyacrylamide-ka cationic uu yahay kan ugu qaalisan suuqa, waxaana ku xiga polyacrylamide-ka aan ionic ahayn, ugu dambayntiina polyacrylamide anionic. Qiimaha, waxaan ka samayn karnaa go'aan hordhac ah nooca ion-ka.
2. Kala diri polyacrylamide si loo cabbiro qiimaha pH ee xalka. Qiimaha pH ee u dhigma ee moodooyinka kala duwan way kala duwan yihiin.
3. Marka hore, dooro alaabta anionic polyacrylamide iyo cationic polyacrylamide, oo si gaar ah u mil. Isku qas xalka badeecada polyacrylamide si loogu tijaabiyo labada xal ee PAM. Haddii ay la falgasho badeecada anionic polyacrylamide, waxay la macno tahay in Polyacrylamide uu yahay cationic. Haddii ay la falgasho cations, waxay caddaynaysaa in badeecada PAM ay tahay anionic ama non-ionic. Khasaaraha habkan ayaa ah inaysan si sax ah u aqoonsan karin in badeecaddu tahay anionic ama non-ionic polyacrylamide. Laakiin waxaan ka qiyaasi karnaa waqtiga kala dirista, anions-ku waxay si aad uga dhakhso badan yihiin kuwa aan ahayn ions. Guud ahaan, anion-ku si buuxda ayuu u milmaa hal saac gudaheed, halka aan ahayn ion-ku uu qaato hal saac iyo badh.
4. Marka laga soo tago tijaabooyinka wasakhda, dhammaanteen waan ognahay in polyacrylamide cationic polyacrylamide PAM guud ahaan ay ku habboon tahay walxaha si xun loo dallacay ee ka kooban walxaha dabiiciga ah; anionic PAM waxay ku habboon tahay uruurinta sare ee walxaha aan organic ahayn ee si togan loo dallacay iyo walxaha la laalay ee qallafsan (0.01-1mm), qiimaha pH waa dhexdhexaad ama alkaline milma; non-ionic polyacrylamide PAM waxay ku habboon tahay kala-soocidda adkaha la laalay ee xaalad isku dhafan oo organic iyo inorganic ah, xalkuna waa aashito ama dhexdhexaad. Flocs-ka ay samaysay cationic polyacrylamide waa weyn yihiin oo cufan yihiin, halka flocs-ka ay sameeyeen anion iyo non-ion ay yar yihiin oo kala firirsan yihiin.
Waqtiga boostada: Oktoobar-27-2021