Polyacrylamide(PAM) ke polymer e phahameng ea boima ba limolek'hule e sebelisoang haholo lits'ebetsong tsa kalafo ea metsi libakeng tse fapaneng. E na le mefuta e fapaneng ea boima ba limolek'hule, li-ionicities, le meaho e lumellanang le maemo a fapaneng a ts'ebeliso mme e ka etsoa bakeng sa maemo a ikhethileng. Ka ho se nke lehlakore ha motlakase le polima adsorption le borokho, PAM e ka khothaletsa agglomeration e potlakileng le sedimentation ea likaroloana tse emisitsoeng, ho ntlafatsa boleng ba metsi. Sengoliloeng sena se tla shebisisa lits'ebetso le litlamorao tsa PAM kalafong ea metsi libakeng tse fapaneng.
Ts'ebetsong ea likhoerekhoere tsa malapeng, PAM e sebelisoa haholo-holo bakeng sa flocculation sedimentation le sludge dewatering. Ka ho fokotsa thepa ea motlakase le ho sebelisa litlamorao tsa borokho ba adsorbing, PAM e ka potlakisa ho kopanngoa ha lintho tse tiileng ka metsing ho etsa lihlopha tsa likaroloana tse kholo. Li-flocs tsena li bonolo ho rarolloa le ho sefa, ka hona li tlosa litšila ka metsing le ho fihlela sepheo sa ho hloekisa boleng ba metsi. Tšebeliso ea PAM e ka ntlafatsa katleho ea phekolo ea likhoerekhoere le ho fokotsa litšenyehelo tsa phekolo.
Lefapheng la ho etsa pampiri, PAM e sebelisoa haholo-holo e le thuso ea ho boloka, thuso ea filthara, dispersant, joalo-joalo Ka ho eketsa PAM, tekanyo ea ho boloka li-fillers le likhoele tse ntle pampiring e ka ntlafatsoa, ho fokotsa tšebeliso ea thepa e tala, le ho ntlafatsa. ho sefa le ho felloa ke metsi 'meleng ha makhasi. Ho ekelletsa moo, PAM e ka sebetsa e le "non-silicon polymer stabilizer" ts'ebetsong ea bleaching, e ntlafatsang bosoeu le ho khanya ha pampiri.
Phekolo ea metsi a litšila ea semela sa joala,PAMe sebelisoa haholo-holo ts'ebetsong ea ho felloa ke metsi 'meleng. Bakeng sa lits'ebetso tsa tlhahiso ea joala tse nang le lisebelisoa tse fapaneng tse tala le lits'ebetso tsa kalafo ea metsi a litšila, ho bohlokoa ho khetha cationic polyacrylamide e nang le ionicity e nepahetseng le boima ba limolek'hule. Teko ea khetho ka liteko tsa liteko tsa beaker ke e 'ngoe ea mekhoa e sebelisoang hangata.
Metsi a litšila a lijo, a nang le lintho tse ngata tsa tlhaho le lintho tse tiileng tse emisitsoeng, a hloka mekhoa e nepahetseng ea kalafo. Mokhoa oa setso o kenyelletsa sedimentation ea 'mele le ho belisoa ha biochemical. Leha ho le joalo, lits'ebetsong tse sebetsang, li-polymer flocculants hangata lia hlokahala bakeng sa ho felloa ke metsi 'meleng le lits'ebetso tse ling tsa kalafo. Boholo ba li-flocculants tse sebelisoang ts'ebetsong ena ke lihlahisoa tsa letoto la cationic Polyacrylamide. Ho khetha e loketseng Polyacrylamide sehlahiswa hloka ho nahana ka phello ea phetoho ea tlelaemete (mocheso) ka kgetho flocculant, ho khetha loketseng molek'hule boima le qoso boleng e thehiloeng floc boholo hlokahala ke tshebetso ya kalafo, 'me lintlha tse ling. Ho feta moo, ho lokela ho lebisoa tlhokomelo litabeng tse kang litlhoko tsa ts'ebetso le lisebelisoa le tšebeliso ea li-flocculants.
Metsing ea litšila ea elektronike le ea electroplating, PAM e sebelisoa haholo-holo e le aFlocculantle precipitant. Ka ho fokotsa thepa ea motlakase le ho sebelisa litlamorao tsa borokho, PAM e ka kopanya kapele le ho lokisa li-ion tsa tšepe tse boima metsing a litšila. Ts'ebetsong ena, ka kakaretso hoa hlokahala ho kenya sulfuric acid metsing a litšila ho fetola boleng ba pH ho 2-3 ebe o eketsa mokelikeli o fokotsang. Ka tankeng e latelang, sebelisa NaOH kapa Ca(OH)2 ho fetola pH ea boleng ho 7-8 ho hlahisa Cr(OH)3 precipitates. Ebe u eketsa coagulant ho phalla le ho tlosa Cr(OH)3. Ka mekhoa ena ea phekolo, PAM e thusa ho ntlafatsa katleho ea phekolo ea metsi a litšila ea elektronike le ea electroplating le ho fokotsa kotsi ea li-ion tse boima ho tikoloho.
Nako ea poso: Jun-04-2024