Thepa ea ho hatisa le ho daea metsi a litšilae etselitsoe haholo-holo le ho ntlafatsoa bakeng sa ho hatisa le ho daea metsi a litšila a nang le chromaticity e phahameng le bothata ba decolorization, le COD e phahameng, e ka rarollang ka katleho mathata a theknoloji nakong e fetileng ea khatiso le ho daea metsi a litšila.Metsi a litšila a hatisang le a ho daea a ka ntšoa ka mokhoa o tloaelehileng ka mor'a ho phekoloa.
Boleng ba metsi ba ho hatisa le ho daea metsi a litšila bo fapana ho ea ka mofuta oa fiber e sebelisoang le theknoloji ea ho sebetsa, 'me likaroloana tse silafatsang li fapana haholo.Ho hatisa le ho daea metsi a litšila ka kakaretso a na le litšobotsi tsa khatello e phahameng ea litšila, mefuta e mengata, likarolo tse chefo le tse kotsi, le chromaticity e phahameng.Ka kakaretso, pH boleng ba ho hatisa le ho daea metsi a litšila ke 6-10, CODCr ke 400-1000mg/L, BOD5 ke 100-400mg/L, SS ke 100-200mg/L, 'me chromaticity ke makhetlo a 100-400.
Empa ha mokhoa oa ho hatisa le oa ho daea, mefuta ea likhoele tse sebelisoang, le theknoloji ea ho sebetsa e fetoha, boleng ba likhoerekhoere bo tla ba le phetoho e khōlō.Lilemong tsa morao tjena, ka lebaka la ntshetsopele ya masela faeba lik'hemik'hale, ho phahama ho etsisa silika, le tsoelo-pele ea ho daea le ho qeta thekenoloji, palo e kholo ea ho thata ho senya metsoako ea lintho tse phelang tse kang PVA boholo, alkali hydrolysates ea silika maiketsetso (haholo-holo phthalates). ), 'me lisebelisoa tse ncha li kenelletse ho hatisa le ho daea metsi a litšila.CODCr concentrations e boetse e eketsehile ho tloha ho makholo a mg/L ho ea ho 2000-3000mg/L, BOD5 e nyolohetse ho feta 800mg/L, mme boleng ba pH bo fihlile ho 11.5-12, Sena se fokotsa sekhahla sa ho tlosoa ha CODCr ea phekolo ea pele ea likokoana-hloko. tsamaiso ho tloha 70% ho pota 50%, kapa esita le tlaase.
Palo ea metsi a litšila ha a hatisa le ho daea metsi a litšila e batla e fokola, empa bongata ba lintho tse silafatsang bo phahame, bo nang le boholo bo fapaneng, lihlahisoa tsa ho bola, li-fiber chips, starch alkali le li-additives tse fapaneng.Khoerekhoere ke alkaline e nang le pH ea boleng ba hoo e ka bang 12. Metsi a litšila a nang le starch e le eona ntho e ka sehloohong ea ho etsa boholo (joalo ka lesela la k'hothone) a na le boleng bo phahameng ba COD le BOD le biodegradability e ntle.Metsi a litšila a nang le joala ba polyvinyl (PVA) e le oona o ka sehloohong oa ho etsa boholo (joalo ka khoele ea polyester cotton warp) a na le COD e phahameng le BOD e tlase, 'me ho senyeha ha tlhaho ha metsi a litšila ho fokola.
Ho hatisa le ho daea metsi a litšila ho na le metsi a litšila a belang a mangata le lintho tse silafatsang tse ngata, ho akarelletsa cellulose, citric acid, boka, oli, alkali, surfactants, metsoako e nang le naetrojene, joalo-joalo. mmala o mosootho.
Ho hatisa le ho daea metsi a litšila ho na le palo e kholo ea metsi a litšila a soeufalitsoeng, empa tšilafalo e batla e le bobebe, e nang le li-bleaching agents tse setseng, acetic acid e nyenyane, oxalic acid, sodium thiosulfate, joalo-joalo.
Ho hatisa le ho daea metsi a litšila a mercerizing a na le alkali e ngata, e nang le NaOH e tlohang ho 3% ho isa ho 5%.Boholo ba limela tse hatisang le tse daeang li khutlisa NaOH ka ho fetoha mouoane le ho tsepamisa mohopolo, kahoo metsi a litšila a mercerizing hangata ha a ntšoe.Ka mor'a ho sebelisoa khafetsa, metsi a litšila a ho qetela a tšolotsoeng a ntse a le alkaline e ngata, e nang le BOD e phahameng, COD, le SS.
Palo ea metsi a litšila a daeang ha ho hatisoa le ho daea e batla e le khōlō, 'me boleng ba metsi bo fapana ho ea ka lidae tse sebelisoang.E na le li-slurries, lidae, li-additives, li-surfactants, joalo-joalo, 'me ka kakaretso ke alkaline e matla e nang le chromaticity e phahameng.COD e phahame haholo ho feta BOD, 'me biodegradability ea eona e fokola.
Palo ea metsi a litšila a hatisoang le ho a daea e batla e le khōlō.Ntle le metsi a litšila a tsoang ts'ebetsong ea khatiso, e boetse e kenyelletsa sesepa le metsi a litšila a hlatsoang metsi ka mor'a ho hatisa.Tšimoloho ea lintho tse silafatsang e phahame, ho kenyelletsa le slurry, dyes, additives, joalo-joalo, 'me BOD le COD kaofela li phahame.
Palo ea metsi a litšila a tsoang khatisong le ho daea metsi a litšila e batla e le nyane, a nang le li-fiber chips, li-resin, lisebelisoa tsa oli le li-slurries.
Ho hatisa le ho daea metsi a litšila a alkali a fokotsa metsi a litšila a hlahisoa ho tloha ts'ebetsong ea phokotso ea alkali ea silika ea ho etsisa polyester, haholo-holo e nang le polyester hydrolysates e kang terephthalic acid le ethylene glycol, e nang le terephthalic acid content ho fihlela ho 75%.Metsi a litšila a fokotsang alkaline ha a na pH ea boleng bo phahameng feela (ka kakaretso> 12), empa hape a na le lintho tse ngata tse phelang.CODCr metsing a litšila a tsoang mokhoeng oa phokotso ea alkaline e ka fihla ho 90000 mg/L.Metsoako e phahameng ea limolek'hule le lidae tse ling ho thata ho li silafatsa, 'me mofuta ona oa metsi a litšila ke a bohlokoa haholo 'me ho thata ho senya metsi a litšila.
Lisebelisoa tsa ho hloekisa le ho daea metsi a litšila li sebelisa mesebetsi ea bophelo ea libaktheria tsa anaerobic le aerobic ho sebelisa litšila tse tsoang metsing a litšila.Ka nako e ts'oanang, li-flocculents tsa likokoana-hloko tse entsoeng ke likokoana-hloko li senya le ho phalla litšila tse emisitsoeng le li-colloidal organic, adsorb holim'a seretse se kentsoeng, se senya lintho tse phelang, 'me qetellong se finyella phello ea ho hloekisa metsi a litšila.
Thepa ena e na le moea o kenang ka tlas'a metsi, o sutumetsoang ke ho phalla ha metsi ho etsa hore ho be le moea o habeli.Ha ho phekoloa likhoerekhoere, likhoerekhoere li phallela sebakeng sa aeration ho tloha ka holimo ho sesebelisoa, 'me aerator e kena ka tlas'a metsi aeration' me e sutumelletsa ho phalla ho susumetsa likhoerekhoere.Likhoerekhoere tse kenang ka potlako li kopanya ka ho feletseng le motsoako oa pele, ho ikamahanya le liphetoho tsa boleng ba metsi a kenang ka hohle kamoo ho ka khonehang.Aerator e na le mesebetsi e 'meli ea ho phalla ha metsi le ho kenya moea ka tlas'a metsi, e leng ho nolofalletsang likhoerekhoere sebakeng sa aeration ho potoloha khafetsa le ho eketsa boemo ba oksijene e qhibilihileng ka har'a likhoerekhoere.Ka lebaka la ho potoloha ho tsoelang pele le ho phalla ha likhoerekhoere sebakeng sa aeration, boleng ba metsi sebakeng se seng le se seng sa libaka bo batla bo tšoana, 'me palo le thepa ea likokoana-hloko li tšoana hantle.Ka hona, maemo a ho sebetsa a karolo ka 'ngoe ea sebaka sa aeration a batla a lumellana.Sena se laola karabelo eohle ea biochemical tlas'a maemo a matle le a tšoanang.Lintho tse phelang li senyeha butle-butle ke likokoana-hloko, 'me metsi a litšila aa hloekisoa.Ts'ebetso ea tlhoekiso e holimo, 'me matšoao ohle a litšila a kopana le litekanyetso tsa "Emission Standards for Polytants in the Textile Dyeing and Finishing Industry" (GB 4267-92) ea naha.Ho ea ka litlhoko tsa bareki, lisebelisoa tse ling tse tšehetsang li ka fanoa bakeng sa phekolo e tebileng ea ozone ho kopana le "Maemo a Boleng ba Metsi bakeng sa Tšebeliso ea Metsi a Litšila tsa Litoropo le Metsi a Tikoloho ea Naha" (GB/T 18921-2002) maemo a ho sebelisoa hape.印染污水Ea sebetsa boholo ba lisebelisoa tsa ho sebetsa:
Sesebelisoa sena se kopantsoeng sa khatiso le ho daea metsi a litšila se loketse ho phekola mefuta e fapaneng e phahameng, e mahareng, le e tlase ea khatiso le ho daea metsi a litšila, joalo ka khatiso e lohiloeng le ho daea metsi a litšila, ho daea boea le ho qeta metsi a litšila, ho daea silika le ho qeta metsi a litšila, ho daea lik'hemik'hale. le ho qeta metsi a litšila, k'hothone e lohiloeng le masela a kopantsoeng a k'hothone a daea le ho qeta metsi a litšila.
Nako ea poso: Jun-05-2023