Ndeipi kemikari inoshandiswa kune Flocculation?

Flocculationinzira inoshandiswa mumaindasitiri akasiyana siyana, kunyanya mukurapa kwemvura uye kuchenesa mvura yetsvina, kuunganidza zvakaturikwa zvimedu uye colloids kuita zvidimbu zvakakura.Izvi zvinofambisa kubviswa kwavo kuburikidza ne sedimentation kana kusefa.Iwo emakemikari anoshandiswa pa flocculation anozivikanwa se flocculants.Imwe yeakajairika uye anoshandiswa zvakanyanya flocculants ndeye polyacrylamide.

Polyacrylamideipolymer yakagadzirwa kubva kuacrylamide monomers.Iripo mumhando dzakasiyana-siyana, kusanganisira anionic, cationic, uye isiri-ionic, imwe neimwe ine chaiyo yekushandisa.Sarudzo yemhando yepolyacrylamide inoenderana nemhando yezvikamu zviri mumvura uye mhedzisiro inodiwa yeiyo flocculation process.

Anionic polyacrylamide inochajiswa zvisina kunaka uye inowanzo shandiswa mukurapa mvura yetsvina ine tunhu twakachajiswa sevhu uye organic.Cationic polyacrylamide, kune rumwe rutivi, inochajiswa zvakanaka uye inoshanda pakurapa mvura netwunhu tusina kuchena semarara akamiswa uye madhaka.Non-ionic polyacrylamide haina muripo uye inokodzera flocculation yemhando dzakasiyana siyana.

Polyacrylamide flocculants inoshanda nekushambadza pamusoro pezvimedu, kugadzira mabhiriji pakati pawo, nekugadzira akakura aggregates.Maflocs anozobuda ari nyore kugadzika kana kusefa kunze kwemvura.Polyacrylamide inosarudzwa nekuda kwehuremu hwayo hwemamorekuru, iyo inosimudzira kugona kwayo bhiriji uye kuyerera.

Kunze kwepolyacrylamide, mamwe makemikari anoshandiswawo flocculation, zvichienderana nezvinodiwa chaizvo zvekurapa maitiro.Inorganic flocculants, sengeAluminium sulfate(alum) uye ferric chloride, inowanzoshandiswa mukurapa mvura.Aya makemikari anoumba metal hydroxide flocs kana akawedzerwa kumvura, achibatsira mukubviswa kwezvikamu zvakamiswa.

Alum, kunyanya, yakashandiswa zvakanyanya kujekesa mvura kwemakore mazhinji.Kana yawedzerwa kumvura, alum inopinda hydrolysis, ichigadzira aluminium hydroxide flocs inoteya tsvina.Maflocs anogona kubva agara, uye mvura yakajekeswa inogona kuparadzaniswa kubva kune sediment.

Flocculation inhanho yakakosha mukugadzirisa mvura, kuve nechokwadi chekubviswa kwetsvina uye kugadzira mvura yakachena.Sarudzo yeflocculant inoenderana nezvinhu zvakaita sehunhu hwemvura inorapwa, rudzi rwezvikamu zviripo, uye mhedzisiro yekurapa inodiwa.Polyacrylamide uye mamwe ma flocculants anoita basa rakakosha mukusimudzira kushanda kwemvura uye marara masisitimu ekurapa, zvichibatsira mukupihwa kwemvura yakachengeteka uye inonwiwa nezvinangwa zvakasiyana.