Mukugadzirisa mvura yakasviba, inofanira kupfuura nematanho akatevedzana ekushanda, uye mushure mekuyedzwa kuti isvike padanho rekubuda, inoburitswa. Mumatanho aya, flocculant inoita basa rakakosha.Flocculantinogona kudhonza zvinhu zvakasungirirwa zvemamorekuru madiki mumvura. Kugadzikana, zvichiita kuti zvive nyore kusefa. Mhando dzemaflocculant dzakapfumawo. Maitiro ekusarudza flocculant inokukodzera akakoshawo. Nezvekusarudza maflocculant, vagadziri vePAM nePAC vane mazano anotevera:
Maitiro ekusarudza flocculant mukuchenesa mvura yakasviba anofanira kusarudzwa zvichienderana nehunhu hwemvura yakasviba muindasitiri chaiyo. Panguva imwe chete, zvinoenderanawo nekuti flocculant inowedzerwa kupi uye kuti inoshandiswa chii. Kazhinji, pakusarudza inorganic flocculant, kuumbwa kwemvura yakasviba kunofanirwa kufungwa, wobva wasarudza yakakodzera (iron salt, aruminiyamu salt kana iron-aluminium salt, silicon-aluminium salt, silicon-ferric salt, nezvimwewo); inorganic polymer flocculants dzinosanganisira:polyaluminum chloride (PAC), polyaluminum sulfate (PAS), polyaluminum sulfochloride (PACSuyepolyferric sulfate (PFS), nezvimwewo. Pakati pavo, PAC nePAS dzine hunhu hwekuti dzinokwanisa kuchinja kunaka kwehunhu hwemvura inogadziriswa nemakemikari ekurapa mvura asina kucheneswa, kuonda kwakanaka uye kuchenesa, uye mutengo wakaderera wemakemikari.
Pakusarudza mushonga we organic flocculant (wakaita se:polyacrylamide PAM), zvinonyanya kutsamira pakuti anionic polyacrylamide, cationic polyacrylamide kana nonionic polyacrylamide zvinoshandiswa here. Anionic polyacrylamides zvinoenderana nehuwandu hwehydrolysis. Kusarudzwa kwecation kunowanzo shandiswa mukubviswa kwemvura mutsvina. Kusarudzwa kwecationic polyacrylamide kwakakosha zvikuru. Mafekitori ekuchenesa tsvina yemumaguta anowanzo shandisa polyacrylamide yecationic yakasimba pakati nepakati. Macation asina simba anowanzo shandiswa pakuderedza sludge mukugadzira mapepa nekudhinda nekudhaya, uye mvura yakasviba yemishonga inowanzo shandiswa. Sarudza macation akasimba nezvimwewo. Rudzi rwega rwega rwemvura yakasviba rune hunhu hwarwo. Non-ionic polyacrylamide inonyanya kushandiswa mumamiriro ekunze asina acid, uye non-ionic PAM inonyanya kushandiswa mumafekitori ekudhinda nekudhaya.
Vatengesi vemishonga yekurapa mvuraZvinokurudzira kuti kusarudzwa kwemishonga iyi yese inofanira kusarudzwa zvichienderana nebvunzo. Mubvunzo, sarudza huwandu hwedosi, tarisa kumhanya kweflocculation nekudzika kwesedimentation, verenga mutengo wekurapa, uye sarudza mushonga weflocculation usingadhuri uye unoshanda.
Nguva yekutumira: Zvita-19-2022