Cov tshuab luam ntawv thiab dyeing cov khoom siv kho dej khib nyiabFeem ntau yog tsim thiab tsim rau luam ntawv thiab dyeing cov dej khib nyiab nrog cov chromaticity siab thiab nyuaj rau decolorization, thiab siab COD, uas tuaj yeem daws cov teeb meem kev ua haujlwm hauv yav dhau los luam ntawv thiab dyeing cov txheej txheem dej khib nyiab.Kev luam ntawv thiab dyeing cov dej khib nyiab tuaj yeem raug tso tawm raws li tus qauv tom qab kho.
Cov dej zoo ntawm kev luam ntawv thiab dyeing cov dej khib nyiab sib txawv nyob ntawm seb hom fiber ntau siv thiab kev siv tshuab, thiab cov khoom ua paug sib txawv heev.Kev luam ntawv thiab dyeing cov dej khib nyiab feem ntau muaj cov yam ntxwv ntawm cov pa phem ntau, ntau hom, muaj tshuaj lom thiab tsis zoo, thiab chromaticity siab.Feem ntau, pH tus nqi ntawm kev luam ntawv thiab dyeing dej khib nyiab yog 6-10, CODCr yog 400-1000mg / L, BOD5 yog 100-400mg / L, SS yog 100-200mg / L, thiab chromaticity yog 100-400 zaug.
Tab sis thaum cov txheej txheem luam ntawv thiab dyeing, hom fibers siv, thiab kev siv tshuab hloov pauv, cov dej phwj tuaj yuav muaj qhov hloov pauv loj.Nyob rau hauv xyoo tas los no, vim yog kev tsim cov tshuaj fiber ntau fabrics, qhov nce ntawm imitation txhob lo lo ntxhuav, thiab kev nce qib ntawm dyeing thiab xov technology, ib tug loj tus naj npawb ntawm nyuaj rau degrade organic tebchaw xws li PVA loj, alkali hydrolysates ntawm dag dag (feem ntau phthalates. ), thiab cov additives tshiab tau nkag mus rau luam ntawv thiab dyeing dej khib nyiab.Qhov CODr concentration kuj tau nce los ntawm ntau pua mg / L mus rau ntau dua 2000-3000mg / L, BOD5 tau nce mus rau ntau dua 800mg / L, thiab tus nqi pH tau mus txog 11.5-12, Qhov no txo qis CODCr tshem tawm tus nqi ntawm cov tshuaj lom neeg qub. system los ntawm 70% mus rau ib ncig ntawm 50%, los yog txawm qis dua.
Tus nqi ntawm desizing cov dej khib nyiab hauv kev luam ntawv thiab dyeing cov dej khib nyiab yog qhov me me, tab sis qhov concentration ntawm cov pa phem yog siab, uas muaj ntau qhov ntau thiab tsawg, cov khoom loj decomposition, fiber ntau chips, starch alkali, thiab ntau yam additives.Cov dej phwj tuaj yog alkaline nrog tus nqi pH ntawm ib ncig ntawm 12. Cov dej khib nyiab desizing nrog cov hmoov txhuv nplej siab ua tus neeg sawv cev tseem ceeb (xws li paj rwb ntaub) muaj COD thiab BOD qhov tseem ceeb thiab zoo biodegradability.Cov dej khib nyiab desizing nrog polyvinyl cawv (PVA) ua tus neeg sawv cev tseem ceeb (xws li polyester paj rwb warp yarn) muaj COD siab thiab qis BOD, thiab biodegradability ntawm cov dej khib nyiab tsis zoo.
Kev luam ntawv thiab dyeing cov dej khib nyiab muaj cov dej khib nyiab ntau ntau thiab muaj cov pa phem ntau, suav nrog cellulose, citric acid, wax, roj, alkali, surfactants, nitrogen-muaj cov tebchaw, thiab lwm yam. Cov dej khib nyiab muaj zog alkaline, nrog dej kub thiab xim av.
Kev luam ntawv thiab dyeing cov dej khib nyiab muaj ntau cov dej khib nyiab, tab sis cov pa phem kuj yog lub teeb, uas muaj cov tshuaj tua kab mob seem, me me ntawm acetic acid, oxalic acid, sodium thiosulfate, thiab lwm yam.
Kev luam ntawv thiab dyeing cov dej khib nyiab mercerizing cov dej khib nyiab muaj cov ntsiab lus alkali siab, nrog NaOH cov ntsiab lus ntawm 3% mus rau 5%.Feem ntau cov luam ntawv thiab dyeing nroj tsuag rov qab NaOH los ntawm evaporation thiab concentration, yog li mercerizing cov dej khib nyiab feem ntau tsis tshua muaj tawm.Tom qab rov siv dua, cov dej khib nyiab zaum kawg tseem yog cov alkaline siab, nrog siab BOD, COD, thiab SS.
Tus nqi ntawm cov dej khib nyiab dyeing hauv luam ntawv thiab dyeing yog qhov loj, thiab cov dej zoo sib txawv nyob ntawm cov dyes siv.Nws muaj slurries, dyes, additives, surfactants, thiab lwm yam, thiab feem ntau muaj zog alkaline nrog siab chromaticity.COD ntau dua li BOD, thiab nws cov biodegradability tsis zoo.
Tus nqi luam ntawv thiab dyeing cov dej khib nyiab yog qhov loj.Ntxiv nrog rau cov dej khib nyiab los ntawm cov txheej txheem luam ntawv, nws kuj suav nrog cov xab npum thiab dej ntxuav cov dej khib nyiab tom qab luam ntawv.Lub concentration ntawm cov pa phem yog siab, nrog rau slurry, dyes, additives, thiab lwm yam, thiab BOD thiab COD yog tag nrho cov siab.
Tus nqi ntawm cov dej khib nyiab los ntawm kev luam ntawv thiab dyeing kev kho dej khib nyiab yog qhov me me, uas muaj fiber ntau chips, resins, roj cov neeg ua haujlwm, thiab slurries.
Kev luam tawm thiab dyeing cov dej khib nyiab alkali txo cov dej khib nyiab yog tsim los ntawm cov txheej txheem txo alkali ntawm polyester imitation txhob lo lo ntxhuav, feem ntau muaj polyester hydrolysates xws li terephthalic acid thiab ethylene glycol, nrog cov ntsiab lus terephthalic acid txog li 75%.Alkaline txo cov dej khib nyiab tsis tsuas yog muaj tus nqi pH siab (feem ntau> 12), tab sis kuj muaj cov ntsiab lus siab ntawm cov organic teeb meem.CODCr hauv cov dej khib nyiab tawm ntawm cov txheej txheem alkali txo tuaj yeem ncav cuag li 90000 mg / L.High molecular organic compounds thiab ib co dyes yog ib qho nyuaj rau biodegrade, thiab hom dej khib nyiab no belongs rau siab concentration thiab nyuaj rau degrade organic wastewater.
Lub tshuab luam ntawv thiab dyeing cov khoom siv kho dej khib nyiab siv lub neej ua haujlwm ntawm cov kab mob anaerobic thiab aerobic kom haus cov pa phem hauv cov dej khib nyiab.Nyob rau tib lub sijhawm, cov flocculents lom neeg tsim los ntawm cov kab mob microorganisms destabilizes thiab flocculate tshem tawm thiab colloidal organic pollutants, adsorb nyob rau saum npoo ntawm activated sludge, degrade organic teeb meem, thiab thaum kawg ua tiav cov nyhuv ntawm purifying dej khib nyiab.
Cov cuab yeej yog nruab nrog underwater aeration, uas yog thawb los ntawm dej ntws los tsim dual muaj nuj nqi aeration.Thaum kho cov dej phwj tuaj, cov dej phwj tuaj rau hauv thaj chaw aeration los ntawm sab saum toj ntawm lub cuab yeej, thiab lub aerator undergoes underwater aeration thiab thawb cov ntws mus do cov dej phwj tuaj.Cov dej phwj tuaj sai sai sib xyaw nrog cov khoom qub sib xyaw, ua kom haum rau cov kev hloov hauv cov dej nkag mus rau qhov siab tshaj plaws.Lub aerator muaj ob txoj haujlwm ntawm cov dej ntws tawm thiab cov dej hauv qab aeration, ua rau cov dej phwj tuaj hauv thaj chaw aeration mus ncig tsis tu ncua thiab nce cov ntsiab lus oxygen hauv cov dej phwj tuaj.Vim qhov kev sib txuas tsis tu ncua thiab cov dej phwj tuaj hauv thaj chaw aeration, cov dej zoo ntawm txhua qhov chaw hauv cheeb tsam yog qhov sib xws, thiab cov naj npawb thiab cov khoom ntawm cov kab mob yog qhov zoo ib yam.Yog li ntawd, kev ua haujlwm ntawm txhua qhov ntawm thaj chaw aeration yuav luag zoo ib yam.Qhov no tswj tag nrho cov tshuaj biochemical nyob rau hauv cov xwm txheej zoo thiab zoo ib yam.Organic teeb meem yog maj mam degraded los ntawm cov kab mob, thiab cov dej khib nyiab yog purified.Kev ua kom huv huv yog siab, thiab txhua qhov ntsuas ntawm cov dej ntws tau raws li cov qauv emission ntawm lub teb chaws "Emission Standards for Pollutants in the Textile Dyeing and Finishing Industry" (GB 4267-92).Raws li cov neeg siv khoom xav tau, cov chaw txhawb nqa ntxiv tuaj yeem muab rau ozone muaj zog oxidation sib sib zog nqus kev kho kom tau raws li "Dej Zoo Standards for Urban Wastewater Recycling and Landscape Environment Water" (GB/T 18921-2002) standard for recycling and utilization.印染污水 Muaj Scope ntawm cov khoom siv ua haujlwm:
Qhov kev luam ntawv thiab dyeing cov khoom siv dej khib nyiab no yog tsim rau kev kho mob ntawm ntau yam siab, nruab nrab, thiab qis concentration luam ntawv thiab dyeing khib nyiab, xws li knitted printing thiab dyeing wastewater, wool dyeing thiab finishing wastewater, txhob lo lo ntxhuav dyeing thiab finishing wastewater, tshuaj fiber ntau dyeing. thiab ua tiav cov dej khib nyiab, woven paj rwb thiab paj rwb blended ntaub dyeing thiab xov cov dej khib nyiab.
Post lub sij hawm: Jun-05-2023