Ts'ebeliso ea lisebelisoa tsa membrane ea osmosis e sebetsang hantle haholo kalafong ea likhoerekhoere
Theknoloji ea karohano ea membrane ea RO
Theknoloji ea karohano ea membrane ea RO e sebelisa phapang ea khatello e tsitsitseng ho pholletsa le lera e le matla a ho khanna. Limolek'hule tse nyane, joalo ka limolek'hule tsa metsi, li hlola khatello ea osmotic ho feta lera la RO, ka hona li li arola ho litšila. Khatello ea ts'ebetso hangata e pakeng tsa 1.5 le 10.5 MPa, 'me tsamaiso e ka boloka limolek'hule tse nyenyane tsa 1 ho ea ho 10A.
Ha ho phekoloa metsi, RO, e le thepa ea bohlokoa, e ka tlosa ho feta 97% ea lintho tse sa tsitsang, 99% ea lintho tse phelang tse nang le boima ba limolek'hule tse 300 kapa ka holimo, ho feta 99% ea likaroloana tse sa tšoaneng tse akarelletsang libaktheria, le 95% ea SiO2 metsing.
Sebaka se seholo ka ho fetisisa sa ts'ebeliso ea lapeng bakeng sa li-membrane tsa reverse osmosis e lula e le metsi a mangata a phepelo ea boiler, a lateloa ke limmaraka tse fapaneng tsa metsi a hloekileng a indasteri le metsi a nooang. Likopo tsa Membrane le tsona li fihletse tekanyo e kholo indastering ea elektronike, ea semiconductor, ea meriana, ea bongaka, ea lijo, ea lino, ea joala, ea lik'hemik'hale, ea tšireletso ea tikoloho, ea metallurgy le ea masela. Likopo tse ka bang teng nakong e tlang li kenyelletsa tlhoekiso ea metsi a litšila bakeng sa metsi a pholileng a feme ea motlakase, ho ntša letsoai ka bongata ba metsi a leoatle, ho hloekisoa ha metsi a letsoai ka bongata, le ho hloekisa metsi a litšila ka bongata ba masepala le indasteri.
Ho sebelisoa ha membrane ea RO ho hloekisa likhoerekhoere
1Kopo ea ho hloekisa metsi a litšila a nang le letsoai le phahameng
(1) Phekolo e nang le tšusumetso ea metsi a litšila a nang le liminerale tse ngata, a emeloang ke metsi a merafo, a tšoauoa ka letsoai le lengata, haholo-holo metsi a tsoang ka tlas'a lefatše, ka karolelano ea letsoai le fetang 1000 mg/L. Likarolo tsa tlhaho tsa SS tse nang le palo e kholo ea Ca2+Mg2+K+, Cl-, SO42-, HCO3 le HCO3- li ka tlase ho 1.5 mg/L. Bakeng sa libaka tsa merafo tse nang le khaello e matla ea metsi, tšebeliso ea theknoloji ea reverse osmosis bakeng sa kalafo e tebileng ea tlhahiso le metsi a malapeng e khothalelitsoe haholo.
Ho sebelisa metsi a nang le liminerale e le moemeli oa pele, flocculation, sedimentation, le filtration e potlakileng li ile tsa eketsoa ho tlosa boholo ba SSS ka metsing, e leng se ileng sa fella ka reverse osmosis inlet turbidity e ka tlaase ho 1 NTU. Kamora ho khutlisa kalafo ea osmosis, sekhahla sa ho tlosa litšila tse litšila se atametse 100%, ka sekhahla sa ho ntša letsoai sa 96%.
(2) Phekolo ea metsi a litšila ka Metallurgical
Indasteri ea tšepe, e sebelisang mehloli e mengata, e sebelisang metsi haholo le e silafatsang haholo, e etsa karolo ea 14% ea kakaretso ea tšebeliso ea metsi ea Chaena. Metsi a litšila a indasteri ea tšepe a sebelisoa haholo indastering ea metallurgic. Metsi a litšila a na le sebopeho se rarahaneng 'me a fetoha haholo ka mekhahlelo e fapaneng, haholo-holo maemo a phahameng a Ca2+, Mg2+, Fe2+, Mn2+, SO42-, F, le SiO2. Ho hloleha ho ntša esale pele li-extractants tsa tšepe e phahameng tse teng lerameng la reverse osmosis ho ka lebisa tšilafalong e tebileng ea tlhaho.
Bakeng sa metsi a litšila a tsoang fekthering ea tšepe e ntseng e etsoa kalafo ea bobeli ea biochemical, aeration e qala ka tanka ea aeration ho oxidize Fe2+ to Fe3+. Ka nako e ts'oanang, NaClO e eketsoa ho matlafatsa matla a oxidation ea Fe2+ le katleho ea bactericidal. Lebese la lime le eketsoa ho lokisa pH, e lateloe ke flocculation le PAM le PAC. Sedimentation, filtration ka potlako, le activated carbon adsorption joale li sebelisoa ho tlosa lintho tse phelang, masala a chlorine, le li-ion tse boima. Ka mor'a phekolo ea UF, metsi a litšila a phekoloa ka ntho e fokotsang. Scale inhibitors le acid e kena tsamaisong ea RO.
2 Ts'ebeliso ea pheko ea metsi a litšila a refractory
Ho hatisa le ho daea metsi a litšila le ho hloekisa metsi a litšila a petrochemical, ho hatisa le ho daea metsi a litšila, ntle le palo e kholo ea lidae, li-slurries, letsoai la inorganic, li-acids le alkalis, li na le litšobotsi tse fihlang ho makhetlo a 4000 ho feta 'mala, metsi a mangata, lintho tse ngata tse silafatsang, boleng ba metsi a fapaneng, joalo-joalo. sedimentation ea lithōle, 'me tse silafatsang haholo-holo li tsoa ho bola ha likokoana-hloko tsa litšila le leaching ea pula. Boleng ba metsi bo rarahane, 'me COD e phahame haholo ho feta ea likhoerekhoere tsa litoropo. Ho feta moo, leachate e boetse e na le mefuta e fapaneng ea li-ion tsa tšepe, tse kang Fe2+, Cd2+, Cr3+, Cu2+, Zn2+, le mahloriso a Fe2+ nakong ea ho belisoa.
Le hoja ts'ebetso ea A/O ea mekhahlelo e 'meli ea phekolo ea lik'hemik'hale ea biochemical e sebelisitsoe haholo bakeng sa ho senyeha ha lintho tse phelang le ho hlakisoa ha leachate ea litšila, ts'ebetso ea metsi a litšila ha ea tsitsa. Ka hona, ho itšetlehile ka ho hloekisa ka mechine, tšebeliso ea li-membrane tsa ultrafiltration le A / O ho theha ts'ebetso ea MBR e ntlafalitse tekanyo ea ho tlosoa ha lintho tse phelang ka har'a leachate ea litšila.
Mokelikeli, ka mor'a ho arohana ha litšila ka li-membrane tsa ultrafiltration, o kena tsamaisong ea nanofiltration (NFN). NF e ka atleha ho arola lintho tse phelang tse nang le boima ba molek'hule ba 200m ho ea ho 2000m hape e ka sebelisoa ho arola lintho tse ling tsa boleng bo phahameng ho tloha metsing a hlahisoang ke MBR. Patlisiso e ile ea etsoa mabapi le thepa ea li-ion tsa tšepe le ts'ebetso ea kalafo ea likarolo tse tharo tsa lera la MBR+NF+RO. Liphetho li bonts'a hore ts'ebetso e sebetsa hantle, 'me boleng ba litšila bo kopana le maemo a taolo ea ts'ilafalo bakeng sa ho lahlela lithōle tse tiileng tsa masepala.
Nakong ea ts'ebetso, haeba metsi a litšila a NF a fihlela litlhoko tsa ho tsoa, a ka ntšoa ka kotloloho. Ho seng joalo, e ka phekoloa ka ho eketsehileng ho sebelisa tsamaiso e latelang ea RO. Lipatlisiso mabapi le ts'ebetso ea Ar/O-MBR+NF+RO bakeng sa ho phekola leachate ea lithōle li bontšitse hore tlatsetso ea khabone e kentsoeng mochining oa A/O ha e ntlafatse feela ts'ebetso ea ho tlosa lintho tse phelang le litšepe tse boima empa hape e fokotsa ho silafala ha membrane.
3 Kopo kalafong ea boleng bo holimo ea recycle
China e boetse e thehile limela tse kholo tsa metsi tse sebelisoang hape Beijing, Tianjin, Hebei, Shandong le libakeng tse ling. Har'a tsona, liteishene tse 'maloa tse kholo tsa ho khutlisa metsi li sebelisa "UF(MF)+RO" ts'ebetso ea membrane e habeli ho hloekisa mefuta e' meli ea likhoerekhoere tsa litoropo ka metsi a tala, ho hlahisa metsi a boleng bo holimo, a sebelisoang e le karolo ea metsi bakeng sa limela tse futhumatsang mocheso, 'me karolo e' ngoe e sebelisoa joalo ka linōka tsa naha le metsi a fapaneng a malapeng.
Setsi sa lehae sa ho hloekisa metsi a litšila se sebelisa MBR e kopantsoeng le reverse osmosis ho hloekisa metsi a litšila a masepala hore a sebelisoe hape. Metsi a fihletse maemo a TOC
Ho sebelisa ka botlalo melemo ea thekenoloji ea reverse osmosis, ho fokotsa ho silafala ha membrane, le litšenyehelo tse tlase tsa ho hloekisa metsi, k'hamphani ea rona e thehile letoto la lits'ebetso tse kopaneng tse lumellanang le litšobotsi tsa boleng ba metsi. Mekhoa e tloaelehileng ea ho hloekisa metsi, joalo ka ho kopanya le ho qhibiliha, ho bokellana haholo, le ho hloekisa ka mokhoa o phahameng, hangata ho sebelisoa ho tlosa SS. NaClO, lebese la lime, le li-filters tsa lehlabathe la manganese li sebelisetsoa ho fokotsa RO, letsoai la manganese, matsoai a calcium le matsoai a silika tsamaisong e nang le tšusumetso ea Sargassum aeration le oxidation. O3 oxidation e sebelisoa ho phekola recalcitrant A/O organic matter. MBR, UF, le NF li sebelisoa ho boloka SS e ntle le limolek'hule tse nyane tsa tlhaho. Li-ion tse phahameng li kopantsoe le UF+RO kapa MBR+RO dual-membrane systems, kapa esita le MBR+NF+RO triple-membrane systems, ho netefatsa ts'ebetso e tsitsitseng ea tsamaiso le ho netefatsa phekolo ea RO ea metsi a litšila a recalcitrant.
Likhothaletso tsa Khampani
"HID Membrane" e shebana le theknoloji ea karohano ea membrane le nts'etsopele ea sehlahisoa sa membrane, ho fana ka bareki ka karohano ea mokelikeli oa litsebi, tharollo ea mahloriso a membrane le lisebelisoa tse felletseng tsa lisebelisoa tsa sistimi ho tsoa ho tlhahiso ea membrane, lipatlisiso tsa kopo le nts'etsopele, tlhahlobo ea morero, ho kopanngoa ha sistimi le lits'ebeletso tse kopaneng tsa theknoloji.
Letšoao lena le ikemiselitse ho sebelisa theknoloji ea kalafo ea metsi a litšila le likopo tsa sehlahisoa sa membrane ka lilemo tse fetang 16. E bile pula-maliboho ea pele ea lefats'e likarolong tse ngata tsa ts'ebeliso ea li-membrane tsa reverse osmosis, e bokelletse boiphihlelo bo bongata ba ts'ebeliso, mme ea fumana litokelo tse ngata tsa boqapi le lipatente tsa mohlala oa utility mafapheng a amanang, e tlatsa likheo tse ngata lapeng le kantle ho naha, 'me e na le botumo bo phahameng indastering.