Mekhoa ea metsi a nooang ea sechaba e sebelisa mekhoa e fapaneng ea kalafo ea metsi ho fa metse ea bona metsi a sireletsehileng a nooang. Mekhoa ea metsi ea sechaba hangata e sebelisa letoto la mehato ea phekolo ea metsi, ho kenyeletsoa ho hoama, ho phaphamala, ho sefa le ho bolaea likokoana-hloko.
Mehato e 4 ea Phekolo ea Metsi ea Sechaba
Ha ho kopanngoa, lik'hemik'hale tse nang le tjhaja e ntle tse kang aluminium sulphate, polyaluminum chloride kapa ferric sulphate li kenngoa metsing ho kokobetsa litefiso tse mpe tse tšoeroeng ke lintho tse tiileng, ho kenyeletsoa le mobu, letsopa le likaroloana tsa tlhaho tse qhibilihisitsoeng. Kamora ho kokobetsa tjhaja, likaroloana tse kholoanyane tse bitsoang microflocs li thehoa ka ho tlamahana ha likaroloana tse nyane ka lik'hemik'hale tse ekelitsoeng.
Kamora ho kopana, ho hlaha motswako o bonolo o tsejoang e le ho phaphamala, o bakang hore di-microfloc li thulane mme di kopane ho etsa dikarolwana tse bonahalang tse leketlileng. Dikarolwana tsena, tse bitswang di-floc, di tswela pele ho eketseha ka boholo ka ho kopanya ho eketsehileng mme di fihlella boholo le matla a matle, di di lokisetsa mohato o latelang tshebetsong.
Mokhahlelo oa bobeli o etsahala ha lintho tse emisitsoeng le likokoana-hloko li lula tlase ho setshelo. Ha metsi a lula nako e telele a sa sitisoe, lintho tse tiileng tse ngata li tla inehela matla a khoheli 'me li oele fatše ho setshelo. Ho kopana ho etsa hore mokhoa oa ho senngoa ha mobu o sebetse hantle hobane o etsa hore likaroloana li be kholo le ho ba boima, e leng se etsang hore li tebe kapele. Bakeng sa phepelo ea metsi ea sechaba, mokhoa oa ho senngoa ha mobu o lokela ho etsahala khafetsa le libakeng tse kholo tsa ho senngoa ha mobu. Tšebeliso ena e bonolo, e theko e tlase ke mohato o hlokahalang pele ho kalafo pele ho mekhahlelo ea ho sefa le ho bolaea likokoana-hloko.
3. Sefe
Mothating ona, dikarolwana tsa floc di se di dutse tlase ho phepelo ya metsi mme metsi a hlwekileng a se a loketse kalafo e tswelang pele. Ho sefa ho a hlokahala ka lebaka la dikarolwana tse nyane, tse qhibilihileng tse ntseng di le teng metsing a hlwekileng, tse kenyeletsang lerōle, dikokoana-hloko, dikhemikhale, divaerase le dibaktheria.
Ha ho sefshoa, metsi a feta ka har'a likaroloana tsa 'mele tse fapaneng ka boholo le sebopeho. Lisebelisoa tse sebelisoang hangata li kenyelletsa lehlabathe, lehlohlojane le mashala. Ho sefshoa butle ha lehlabathe ho se ho sebelisitsoe ka lilemo tse fetang 150, ka rekoto e atlehileng ea ho tlosa libaktheria tse bakang mathata a mala. Ho sefshoa butle ha lehlabathe ho kopanya lits'ebetso tsa baeloji, tsa 'mele le tsa lik'hemik'hale ka mohato o le mong. Ka lehlakoreng le leng, ho sefshoa kapele ha lehlabathe ke mohato oa ho hloekisa 'mele feela. E rarahane ebile e rarahane, e sebelisoa linaheng tse tsoetseng pele tse nang le mehloli e lekaneng ea ho phekola metsi a mangata. Ho sefshoa kapele ha lehlabathe ke mokhoa o jang chelete e ngata ha o bapisoa le likhetho tse ling, o hlokang lipompo tse tsamaisoang ke motlakase, ho hloekisa kamehla, taolo ea phallo, basebetsi ba nang le boiphihlelo le matla a tsoelang pele.
Mokhahlelo oa ho qetela ts'ebetsong ea kalafo ea metsi sechabeng o kenyelletsa ho eketsa sebolaya-mafu se kang chlorine kapa chloramine phepelong ea metsi. Chlorine e 'nile ea sebelisoa ho tloha bofelong ba lilemo tsa bo-1800. Mofuta oa chlorine o sebelisoang kalafong ea metsi ke monochloramine. Ena e fapane le mofuta o ka senyang boleng ba moea oa ka tlung haufi le matamo a ho sesa. Phello e kholo ea ts'ebetso ea ho bolaea likokoana-hloko ke ho oxidation le ho felisa lintho tse phelang, e leng se thibelang ho ata ha likokoana-hloko, livaerase le libaktheria tse ka 'nang tsa sala metsing a nooang. Ho bolaea likokoana-hloko ho boetse ho thusa ho sireletsa metsi ho likokoana-hloko tseo a ka pepesetsoang ho tsona nakong ea kabo ha a ntse a isoa malapeng, likolong, likhoebong le libakeng tse ling.
"Botšepehi, Boqapi, Bo tiileng, Bo sebetsang" ke ho khomarela ha k'hamphani ea rona mohopolo oa nako e telele, melemo ea bobeli le melemo ea bobeli le bareki, lik'hemik'hale tsa kalafo ea likhoerekhoere tsa Chaena tse rekisoang ka bongata / lik'hemik'hale tsa tlhoekiso ea metsi bakeng sa Chaena, k'hamphani ea rona e hahile sehlopha se nang le boiphihlelo, boqapi le se nang le boikarabello se thehang bareki ka molao-motheo oa ho hapa bohle.
Chaena e rekisang thepa e ngata Chaena PAM,polyacrylamide ea cationic, ka ho kopanngoa ha moruo oa lefats'e ho tlisang liphephetso le menyetla indastering ea meriana ea kalafo ea likhoerekhoere, k'hamphani ea rona e latela moea oa tšebelisano-'moho, boleng pele, boqapi le melemo ea bobeli, 'me e kholisehile ho fa bareki lihlahisoa tsa boleng bo holimo, litheko tse hlōlisanang le tšebeletso e ntle, 'me ka moea oa ho ba le bokamoso bo betere, kapele, le ho feta, hammoho le metsoalle ea rona, re tsoele pele ka taeo ea rona bakeng sa bokamoso bo betere.
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Nako ea poso: Phuptjane-06-2022