Ts'ebetsong ea ho hloekisa metsi a litšila, e hloka ho feta letotong la mehato ea ts'ebetso, 'me ka mor'a ho lekoa ho finyella tekanyo ea ho ntša metsi, e lokolloa. Letotong lena la lits'ebetso, flocculant e phetha karolo ea bohlokoa. TheFlocculante ka flocculate taba e emisitsoeng ea limolek'hule tse nyenyane ka metsing. Ho tsitsa, ho etsa hore ho be bonolo ho sefa. Mefuta ea li-flocculants e boetse e ruile haholo. Mokhoa oa ho khetha flocculant e lumellanang le uena e bohlokoa ebile e bohlokoa. Mabapi le khetho ea li-flocculants, baetsi ba PAM le PAC ba na le litlhahiso tse latelang:
Mokhoa oa ho khetha flocculant kalafo ea metsi a litšila e lokela ho khethoa ho latela litšobotsi tsa metsi a litšila indastering e itseng. Ka nako e ts'oanang, ho boetse ho itšetlehile ka hore na flocculant e kenngoa hokae le hore na e sebelisetsoa eng. Ka kakaretso, ha u khetha flocculant ea inorganic, motsoako oa metsi a litšila o lokela ho nahanoa, ebe o khetha e loketseng (letsoai la tšepe, letsoai la aluminium kapa letsoai la tšepe-aluminium, letsoai la silicon-aluminium, letsoai la silicon-ferric, joalo-joalo); li-inorganic polymer flocculants li kenyelletsa:polyaluminium chloride (PAC), polyaluminium sulfate (PAS), polyaluminium sulfochloride (PACS) lepolyferric sulfate (PFS), joalo-joalo Har'a bona, PAC le PAS tse emetseng ho feta li na le litšobotsi tsa ho ikamahanya le maemo ho fetoha ha boleng ba metsi bo tšoaroang ke lik'hemik'hale tsa phekolo ea metsi a tala, liphello tse ntle tsa coagulation le tlhoekiso, le litšenyehelo tse tlaase tsa lik'hemik'hale.
Ha u khetha flocculant ea manyolo (joalo ka:polyacrylamide PAM), haholo-holo ho itšetlehile ka hore na anionic polyacrylamide, cationic polyacrylamide kapa nonionic polyacrylamide e sebelisoa. Anionic polyacrylamides li thehiloe ho tekanyo ea hydrolysis. Khetho ea li-cations hangata e sebelisoa ho tlosa metsi a litšila. Khetho ea cationic polyacrylamide e bohlokoa haholo. Litsi tsa likhoerekhoere tsa litoropong hangata li sebelisa cationic polyacrylamide e mahareng e matla. Li-cations tse fokolang hangata li sebelisoa bakeng sa ho felloa ke metsi ka har'a seretse ho etsa pampiri le ho hatisa le ho daea limela, 'me metsi a litšila a sebelisoang hangata a sebelisoa. Khetha li-cations tse matla joalo-joalo. Mofuta o mong le o mong oa metsi a litšila o na le litšobotsi tsa oona. Polyacrylamide e seng ionic e sebelisoa haholo tlas'a maemo a acidic a fokolang, 'me PAM e seng ea ionic e sebelisoa haholo lifemeng tsa khatiso le ho daea.
Bafani ba lisebelisoa tsa ho hloekisa metsifana ka maikutlo a hore khetho ea li-flocculants tsena kaofela e lokela ho khethoa ho latela tlhahlobo. Tekong, fumana tekanyo e lekantsoeng ea tekanyo ea litekanyetso, hlokomela lebelo la ho phalla le ho qhibiliha, bala litšenyehelo tsa phekolo, 'me u khethe sesebelisoa sa flocculation se bolokang chelete le se sebetsang.
Nako ea poso: Dec-19-2022