Sesefa se senyenyane (MF)
Mokhoa o nepahetseng oa ho sefa o pakeng tsa 0.1 le 50 microns.Micro-filtration e kenyelletsa likarolo tse fapaneng tsa filthara ea PP, likarolo tse kentsoeng tsa "carbon filter", likarolo tsa sefa sa ceramic, joalo-joalo.E tlosa lintho tse kotsi metsing, joalo ka likokoana-hloko.Sesefo hangata ha se hlatsoe 'me ke sesefo sa nako e le' ngoe se tlamehang ho fetoloa khafetsa.
①PP Konopo ea k'hothone: hangata e sebelisoa feela bakeng sa tlhoekiso e mahoashe e nang le litlhoko tse tlase ho tlosa likaroloana tse kholo joalo ka mafome le mafome ka metsing.
②Activated carbon: E ka felisa mebala e fapaneng le menko e ka metsing, empa e ke ke ea tlosa libaktheria ka metsing, 'me phello ea ho tlosa sediment le mafome le eona e mpe haholo.
③Ceramic filter element: Ho nepahala ho honyenyane ho hloekisa ke 0.1 micron feela, 'me sekhahla sa phallo hangata se nyane, seo ho seng bonolo ho se hloekisa.
Membrane e hloekisang haholo (UF)
Lera la filthara la microporous le na le boholo bo lekantsoeng ba li-microns tse 0.001-0.02 le litekanyetso tse sa fetoheng tsa boholo ba pore.Ultra-filtration membrane filtration ke mokhoa oa ho sefa oa membrane o sebelisang lera la Ultra-filtration le phapang ea khatello joalo ka matla a khannang.Bongata ba li-membrane tsa ultrafiltration li entsoe ka likhoele tsa acetate kapa lisebelisoa tsa polymer tse nang le litšobotsi tse bapisoang.E loketse karohano le mahloriso a solutes litharollong tsa phekolo, hape e atisa ho sebelisoa bakeng sa ho arohana ha li-colloidal suspensions tseo ho leng thata ho li qeta ho sebelisa mekhoa e meng ea karohano, 'me libaka tsa eona tsa ts'ebeliso li ntse li hōla ka ho tsoelang pele.
Membrane ultrafiltration e ipapisitseng le phapang ea khatello e arotsoe ka mefuta e meraro: ultrafiltration membrane filtration, microporous membrane filtration, le reverse osmosis membrane filtration.Li khetholloa ka boholo ba likaroloana kapa boima ba limolek'hule boo lera le ka le bolokang.Ha tekanyo ea boholo ba pore ea lera e sebelisoa e le mokhoa o khethollang, lesela la microporous (MF) le na le boholo ba pore e lekantsoeng ea 0.02-10 m, lesela la "ultra-filtration" (UF) le na le boholo bo lekantsoeng ba 0.001. -0.02 m, le lera la reverse osmosis (RO) le na le boholo bo lekantsoeng ba pore ea 0.0001-0.001 m.Ho na le likarolo tse 'maloa tsa taolo bakeng sa li-pores, tse kang li-membrane tsa ultra-filtration tse nang le boholo bo sa tšoaneng ba pore,' me kabo ea boholo ba pore e ka hlahisoa ho latela mofuta le mahloriso a tharollo, hammoho le mouoane le maemo a coagulation nakong ea tlhahiso ea lera.
'Mapa oa 'mapa oa ho sefa haholo
Li-membrane tsa Ultra-filtration hangata ke li-membrane tsa karohano ea polymer, 'me lisebelisoa tsa polymer tse sebelisoang bakeng sa li-membrane tsa ultra-filtration haholo-holo li entsoe ka lintho tse tsoang ho cellulose, polysulfone, polyacrylonitrile, polyamide le polycarbonate.Li-membrane tsa Ultra-filtration li sebelisoa haholo indastering ea meriana, ea lijo, le ea tikoloho, 'me li ka etsoa ka li-membrane tse bataletseng, li-membrane tsa roll, li-membrane tsa tubular, kapa li-membrane tsa fiber tse se nang letho.
Lera la ultra-filtration e ne e le e 'ngoe ea li-membrane tsa pele tsa karohano ea polymer tse ileng tsa qaptjoa,' me metjhini e hloekisang haholo e entsoe ka bo-1960.Li-membrane tsa Ultrafiltration li sebelisoa haholo indastering mme li hlahile e le ts'ebetso e ncha ea yuniti ea lik'hemik'hale.E sebelisoa ho arola, ho tsepamisa mohopolo le ho hloekisa lihlahisoa tsa likokoana-hloko, thepa ea meriana le lijo, hammoho le lisebelisoa tsa phekolo ea phekolo ea phekolo ea mali, ho hloekisa metsi a litšila le ho lokisa metsi a ultrapure.
Ho nepahala ha nanofiltration (NF) ho pakeng tsa ultrafiltration le ea reverse osmosis, 'me sekhahla sa ho ntša letsoai se tlase ho feta sa reverse osmosis.Mmarakeng, ho ne ho e-na le polelo e atileng: nanofiltration is sloppy reverse osmosis.Haele hantle, ona ke mohopolo o thetsang oa tekheniki.
'Mapa oa tlhaho oa nanofiltration
Khopolong ea 'nete ea karohano, nanofiltration ke lera la filthara e khotsofatsang phello ea Daunan' me e na le ho hana ion e khethiloeng, lera leo sodium chloride permeability ea lona e lekanang le sodium chloride concentration 'me e feta 0.4.Lisebelisoa tsa eona tsa mantlha ke ho tlosa letsoai le letsoai la metsi a fapaneng.0% ho hana NaCl ho hlokometsoe ho sebelisoa li-membrane tsa nanofiltration ho 30,000 ppm NaCl hammoho le li-ion tse ling.
Reverse osmosis (RO): Ho nepahala ha filthara ho pota-potile 0.0001 microns, 'me ke mokhoa oa ho arola lera o phahameng ka ho fetisisa o entsoeng United States mathoasong a lilemo tsa bo-1960 o sebelisa khatello ea phapang.E ka sefa hoo e batlang e le litšila tsohle (tse kotsi le tse molemo) ka metsing, e siea limolek'hule tsa metsi feela.Maemong a mangata, e sebelisoa ho hlahisa metsi a hloekileng, metsi a ultrapure a indasteri, le metsi a ultrapure a bongaka.Khatello le matla lia hlokahala bakeng sa theknoloji ea reverse osmosis.
RO ke khutsufatso ea membrane ea Reverse Osmosis ka Senyesemane.Kaha boholo ba pore ea lera la RO ke karolo ea limilione tse hlano tsa moriri (0.0001 microns), hangata ha e bonahale ka mahlo, 'me libaktheria le likokoana-hloko ke tsona 5000 Ka hona, ke limolek'hule tsa metsi feela le li-ion tse ling tsa liminerale tse molemo ho' mele oa motho. e ka feta, 'me litšila tse ling le litšepe tse boima li ntšoa phapeng ea metsi a litšila.
Molao-motheo oa reverse osmosis:
Pele ho tsohle, re tlameha ho utloisisa mohopolo oa "osmosis".Osmosis ke ts'ebetso ea 'mele.Ha mefuta e 'meli ea metsi a nang le matsoai a sa tšoaneng e arohanngoa, joalo ka mokoallo o sa khoneng ho phunyeletsa, metsi a lehlakoreng le nang le letsoai le lenyenyane a tla fumanoa a phunyeletse.Lera le kena ka metsing le na le letsoai le lengata, empa letsoai ha le kenelle, ho etsa hore letsoai ka mahlakoreng ka bobeli le kopane butle-butle ho fihlela le lekana.Leha ho le joalo, ho nka nako e telele ho phethela ts'ebetso ena, e tsejoang hape e le khatello ea osmotic.
'Mapa oa morao-rao oa osmosis
Leha ho le joalo, haeba u leka ho beha khatello lehlakoreng la metsi ka letsoai le leholo, phello e ka boela ea fokotsa ho kenella ho boletsoeng ka holimo, 'me khatello ena e tsejoa e le khatello ea osmotic.Haeba khatello e phahama, ho kenella ho ka khutlisetsoa morao, 'me letsoai le tla lula.Ka lebaka leo, molao-motheo oa reverse osmosis desalination ke ho sebelisa khatello e kholo ho feta khatello ea tlhaho ea osmotic metsing a letsoai (joalo ka metsi a tala), e le hore osmosis e tsoele pele ka lehlakoreng le leng, 'me limolek'hule tsa metsi metsing a tala li hatelloa. ho ea ka lehlakoreng le leng la lera, ho fella ka metsi a hloekileng, e le ho finyella sepheo sa ho tlosa litšila le letsoai metsing.
Tšimoloho ea RO reverse osmosis:
Rasaense oa Leamerika, o ile a fumana ka tsietsi ka 1950 hore matata a ile a monya metsi a mangata a leoatle a tletseng metsi a leoatle ha a fofa leoatleng.Li ile tsa hlatsa metsi a leoatle a mangata ka mor'a metsotsoana e seng mekae, e leng se ileng sa tsosa matšoenyeho hobane liphoofolo tse lefatšeng li hema ka matšoafo a tsona.Metsi a letsoai a mangata a ke ke a jeoa.Ka mor'a ho aroloa, ho ile ha fumanoa hore 'mele oa seagull o na le lera le lesesaane.Filimi e hlile e nepahetse.Seagull e hula metsi a letsoai, ao ka mor'a moo a hatelloang, 'me limolek'hule tsa metsi li feta filiming ka lebaka la phello ea khatello.
E fetoloa metsi a hloekileng, 'me lintho tse silafatsang le letsoai le teteaneng ka ho fetisisa metsing a leoatle li ntšoa ka hanong.Ona ke motheo oa motheo oa theory oa reverse osmosis process, e ileng ea sebelisoa ka lekhetlo la pele ho lisebelisoa tsa ho ntša letsoai ka 1953 ke Univesithi ea Florida.Dr.S.Sidney Lode, moprofesa oa UCLA University School of Medicine, o ile a sebelisana le Dr.S.Soirirajan ho qala lipatlisiso ka li-membrane tsa reverse osmosis ka 2009, ka ts'ehetso ea morero oa' muso oa United States, 'me o ile a tsetela hoo e ka bang $400 milione ea lidolara tsa Amerika. selemo lipatlisisong tsa ho e sebelisa ho litsebi tsa linaleli.
Nako ea poso: Mar-31-2022