Ndi mankhwala ati omwe amagwiritsidwa ntchito pa Flocculation?

Flocculationndi ndondomeko ntchito m'mafakitale osiyanasiyana, makamaka mankhwala madzi ndi zinyalala mankhwala, kuti akaphatikiza inaimitsidwa particles ndi colloids mu zikuluzikulu floc particles.Izi zimathandizira kuchotsedwa kwawo kudzera mu sedimentation kapena kusefera.Mankhwala omwe amagwiritsidwa ntchito popanga flocculation amadziwika kuti flocculants.Chimodzi mwazinthu zodziwika bwino komanso zogwiritsidwa ntchito kwambiri ndi polyacrylamide.

Polyacrylamidendi polima opangidwa kuchokera ku acrylamide monomers.Zilipo m'njira zosiyanasiyana, kuphatikizapo anionic, cationic, ndi non-ionic, iliyonse ili ndi ntchito zenizeni.Kusankha polyacrylamide mtundu zimadalira chikhalidwe cha particles m'madzi ndi kufunika zotsatira za ndondomeko flocculation.

Anionic polyacrylamide imakhala yoyipa ndipo imagwiritsidwa ntchito pochiza madzi otayira okhala ndi tinthu tating'ono tating'ono monga dongo ndi organic kanthu.Komano, cationic polyacrylamide ili ndi charger yabwino ndipo imagwira ntchito pothira madzi okhala ndi tinthu tambiri toyipa ngati zolimba zoyimitsidwa ndi matope.Non-ionic Polyacrylamide alibe mlandu ndipo ndi oyenera flocculation wa osiyanasiyana particles.

Polyacrylamide flocculants ntchito ndi adsorbing pamwamba pa particles, kupanga milatho pakati pawo, ndi kupanga zazikulu aggregates.Zotsatira zake zimakhala zosavuta kukhazikika kapena kusefa m'madzi.Polyacrylamide imakondedwa chifukwa cha kulemera kwake kwa maselo, komwe kumawonjezera luso lake loyendetsa komanso kuyendetsa bwino.

Kupatulapo polyacrylamide, mankhwala ena amagwiritsidwanso ntchito kwa flocculation, malingana ndi zosowa zenizeni za ndondomeko ya mankhwala.Inorganic flocculants, mongaAluminium Sulfate(alum) ndi ferric chloride, amagwiritsidwa ntchito pochiza madzi.Mankhwalawa amapanga zitsulo zachitsulo za hydroxide zikawonjezeredwa m'madzi, zomwe zimathandiza kuchotsa tinthu tating'onoting'ono.

Alum, makamaka, yakhala ikugwiritsidwa ntchito kwambiri pofotokozera madzi kwa zaka zambiri.Akawonjezeredwa kumadzi, alum amadutsa hydrolysis, kupanga aluminium hydroxide flocs yomwe imatsekera zonyansa.Ma flocs amatha kukhazikika, ndipo madzi omveka bwino amatha kupatulidwa ndi dothi.

Flocculation ndi gawo lofunikira kwambiri pakuyeretsa madzi, kuonetsetsa kuti zonyansa zimachotsedwa ndikutulutsa madzi oyera.Kusankhidwa kwa flocculant kumadalira zinthu monga mawonekedwe a madzi oti athetsedwe, mtundu wa tinthu tating'onoting'ono tomwe timakhalapo, ndi zotsatira za chithandizo chomwe mukufuna.Polyacrylamide ndi ma flocculants ena amagwira ntchito yofunika kwambiri popititsa patsogolo kayendedwe ka madzi ndi madzi onyansa, zomwe zimathandiza kuti pakhale madzi abwino komanso abwino pazifukwa zosiyanasiyana.