Har'a liindasteri tse hloekisang metsi a litšila, ho hatisa le ho daea metsi a litšila ke e 'ngoe ea mekhoa e thata ka ho fetisisa ea ho hloekisa metsi a litšila. E na le sebopeho se rarahaneng, boleng bo phahameng ba chroma, khatello e phahameng, 'me ho thata ho e theola. Ke e 'ngoe ea metsi a litšila a indasteri a tebileng ka ho fetisisa le ao ho leng thata ho a hloekisa a silafatsang tikoloho. Ho tlosoa ha chroma ho thata le ho feta har'a mathata.
Har'a mekhoa e mengata ea ho hloekisa le ho daea metsi a litšila, tšebeliso ea coagulation ke mokhoa o sebelisoang haholo likhoebong. Hajoale, li-flocculants tse tloaelehileng tse sebelisoang likhoebong tsa khatiso tsa masela le ho daea naheng ea heso ke li-flocculants tse thehiloeng ho aluminium le tse entsoeng ka tšepe. Phello ea decolorization e futsanehile, 'me haeba dae e sebetsang e fokotsehile, ho na le hoo e ka bang ha ho na phello ea decolorization,' me ho ntse ho tla ba le li-ion tsa tšepe metsing a hloekisitsoeng, a ntseng a le kotsi haholo 'meleng oa motho le tikolohong e potolohileng.
Dicyandiamide formaldehyde resin decoloring agent ke organic polymer flocculant, mofuta oa letsoai oa quaternary ammonium. Ha e bapisoa le li-flocculants tse tloaelehileng tse tloaelehileng, e na le lebelo la ho phalla ka potlako, tekanyo e fokolang, 'me e angoa ke matsoai a teng hammoho, PH le Melemo e kang tšusumetso e fokolang ea mocheso.
Diciyandiamide formaldehyde resin decoloring agent ke flocculant e sebelisoang haholo bakeng sa decolorization le ho tlosa COD. Ha u e sebelisa, ho kgothaletswa ho fetola pH ya metsi a litšila hore e se nke lehlakore. Ka kopo buisana le litsebi bakeng sa mekhoa e khethehileng ea tšebeliso. Ho latela tšebelisano-'moho e mengata Maikutlo a tsoang ho baetsi ba khatiso le ho daea ke hore dicandiamide formaldehyde resin decolorizer e na le phello e kholo ho theoheng ha mebala ea khatiso le ho daea metsi a litšila. Sekhahla sa ho tlosa chroma se ka fihla ho feta 96%, 'me sekhahla sa ho tlosoa ha COD le sona se fihlile ho feta 70%.
Li-polymer flocculants tsa Organic li qalile ho sebelisoa lilemong tsa bo-1950, haholo-holo li-flocculants tsa phekolo ea metsi tsa polyacrylamide, 'me polyacrylamide e ka aroloa ka li-non-ionic, anionic, le cationic. Sengoliloeng sena, re tla utloisisa acrylamide polymer dicyandiamide formaldehyde resin decolorizing flocculant e tšetsoeng ka quaternary amine har'a li-cationic organic polymer flocculants.
The dicyandiamide formaldehyde resin decolorizing flocculant e qala ka ho arabela ka acrylamide le formaldehyde aqueous solution tlas'a maemo a alkaline, ebe e arabela ka dimethylamine, ebe e pholile ebe e quaternized ka hydrochloric acid. Sehlahisoa se tsepamisitsoe ke mouoane 'me se tlhotliloeng ho fumana monoma ea quaternized acrylamide.
Diciyandiamide-formaldehyde condensation polymer decolorizing flocculant e ile ea hlahisoa lilemong tsa bo-1990. E na le phello e ikhethang haholo ea ho tlosa 'mala oa metsi a litšila a dae. Ha ho phekoloa metsi a litšila a nang le mebala e phahameng le e phahameng, ho sebelisoa polyacrylamide kapa polyacrylamide feela. Polyaluminium chloride flocculant e ke ke ea tlosa pigment ka ho feletseng, 'me ka mor'a ho eketsa flocculant ea decolorizing, e fokotsa tefiso e mpe e khomaretsoeng limolek'hule tsa dae metsing a litšila ka ho fana ka palo e kholo ea li-cations' me kahoo e senya botsitso Qetellong, ho thehoa palo e kholo ea li-floccules, tseo. ka monya limolek'hule dae ka mor'a flocculation le destabilization, e le ho finyella morero oa decolorization.
Mokhoa oa ho sebelisa decolorizer:
Mokhoa oa ho sebelisa decolorizing flocculant e tšoana le ea polyacrylamide. Le hoja ea pele e le mokelikeli, e hloka ho hlapolloa pele e ka sebelisoa. Moetsi o khothalletsa hore e hlapolotsoe ka 10% -50%, ebe e kenngoa metsing a litšila ebe e tsosoa ka ho feletseng. Etsa lipalesa tsa alum. Taba e 'mala e ka metsing a litšila a mebala e phaphamala ebe e tsoa ka metsing,' me e na le sedimentation kapa moea o phaphametseng ho fihlela karohano.
Liindastering tsa khatiso le ho daea, tsa masela le tse ling, tšebeliso ea metsi e kholo haholo 'me sekhahla sa ho sebelisoa hape se tlase. Ka hona, ho senyeha ha mehloli ea metsi ho tloaelehile haholo. Haeba mokhoa ona o sebelisetsoa ho etsa phekolo e tsoetseng pele le ho tsosolosoa ha metsi ana a litšila a liindasteri a nang le mebala e phahameng le e phahameng haholo, Hase feela hore e ka boloka mehloli e mengata ea metsi a hloekileng a indasteri, empa e ka boela ea fokotsa ka ho toba ho ntša metsi a litšila a indasteri, e leng ea bohlokoa bo boholo le bo hole bakeng sa ho khothaletsa nts'etsopele ea moshoelella ea liindasteri tsa khatiso, ho daea le masela.
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Nako ea poso: Nov-16-2021