Iyo yekudhinda uye kudhayira yekuchenesa mvura yetsvinainonyanya kugadzirwa uye kugadziridzwa kudhinda uye kudhayira tsvina ine yakakwira chromaticity uye kuomerwa mu decolorization, uye yakakwira COD, iyo inogona kunyatso kugadzirisa matambudziko ehunyanzvi mune yakapfuura kudhinda uye kudhaya tsvina yemvura maitiro.Kudhinda uye kudhaya tsvina yemvura inogona kuburitswa kusvika pachiyero mushure mekurapwa.
Hunhu hwemvura hwekudhinda uye kudhaya tsvina yemvura inosiyana zvichienderana nerudzi rwefiber inoshandiswa uye kugadzira tekinoroji, uye zvinhu zvinosvibisa zvinosiyana zvakanyanya.Kudhinda uye kudhaya mvura yetsvina kunowanzo kuve nehunhu hwekunyanya kusvibiswa, mhando dzakawanda, zvinhu zvine chepfu uye zvinokuvadza, uye yakakwirira chromaticity.Kazhinji, iyo pH kukosha kwekudhinda uye kudhaya tsvina yemvura ndeye 6-10, CODCr iri 400-1000mg/L, BOD5 iri 100-400mg/L, SS iri 100-200mg/L, uye chromaticity iri 100-400 nguva.
Asi kana kudhinda nekudhaya, mhando dzefiber dzinoshandiswa, uye tekinoroji yekugadzira inoshanduka, kunaka kwetsvina kuchave nekushanduka kukuru.Mumakore achangopfuura, nekuda kwekugadzirwa kwemakemikari fiber machira, kusimuka kwekutevedzera sirika, uye kufambira mberi kwekudhaya uye kupedza tekinoroji, huwandu hukuru hwekuomesesa kushatisa organic komisheni yakadai sePVA saizi, alkali hydrolysates yesirika yekugadzira (kunyanya phthalates. ), uye zvitsva zvinowedzera zvakapinda mukudhinda nekudhaya mvura yetsvina.CODCr concentration yakawedzerawo kubva kumazana emg/L kusvika pamusoro pe2000-3000mg/L, BOD5 yakawedzera kusvika pamusoro pe800mg/L, uye pH value yasvika 11.5-12, Izvi zvinoderedza CODCr kubviswa kweyero yepakutanga biological treatment. system kubva pa70% kusvika ku50%, kana kutodzika.
Huwandu hwekuda mvura yetsvina mukudhinda nekudhaya mvura yetsvina hudiki, asi huwandu hwezvinosvibisa hwakakwira, hune hukuru hwakasiyana, saizi yekuora zvigadzirwa, machipisi efiber, starch alkali, uye zvakasiyana-siyana zvinowedzera.Sewage is alkaline ine pH value inosvika 12. Mvura yetsvina yedeizing ine starch sechinhu chikuru chekuisa saizi (yakadai semucheka wedonje) ine COD yakakwira uye BOD kukosha uye yakanaka biodegradability.Iyo inoshuvira mvura yetsvina ine polyvinyl doro (PVA) seyakanyanya saizi agent (yakadai sepolyester donje warp warn) ine yakakwira COD uye yakaderera BOD, uye biodegradability yemvura yetsvina haina kunaka.
Kudhinda uye kudhaya mvura yetsvina ine mvura yakasviba yakawanda inofashaira uye yakawanda yetsvina, kusanganisira cellulose, citric acid, wakisi, mafuta, alkali, surfactants, nitrogen-containing compounds, etc. Mvura yakasvibiswa ine alkaline yakasimba, ine tembiricha yemvura yakakwirira uye ruvara rwebrown.
Kudhinda uye kudhaya mvura yetsvina ine huwandu hukuru hwemvura yetsvina yekubvongodza, asi kusvibiswa kwacho kunenge kwakareruka, uko kuine zvakasara zvekuchenesa maejenti, mashoma eacetic acid, oxalic acid, sodium thiosulfate, nezvimwe.
Kudhinda nekudhaya mvura yetsvina mercerizing tsvina ine yakakwira alkali content, ine NaOH yemukati inotangira pa3% kusvika pa5%.Zvizhinji zvinodhinda nekudhaya zvidyarwa zvinodzoreredza NaOH kuburikidza nekubuda kwemhepo uye kudzikamisa, saka mercerizing tsvina haiwanzo kuburitswa.Mushure mekushandisa kakawanda, mvura yekupedzisira yakaraswa ichiri alkaline, ine BOD yakakwira, COD, uye SS.
Kuwanda kwekudhaya mvura yetsvina mukudhinda nekudhaya kwakakura, uye mhando yemvura inosiyana zvichienderana nedhayi inoshandiswa.Iine slurries, dhayi, additives, surfactants, nezvimwewo, uye kazhinji yakasimba alkaline ine yakakwirira chromaticity.Iyo COD yakakwira zvakanyanya kupfuura BOD, uye biodegradability yayo haina kunaka.
Huwandu hwekudhinda uye kudhaya tsvina yemvura yakakura.Pamusoro pemvura yakasviba kubva pakudhinda, inosanganisirawo sipo uye mvura yekugeza mvura yetsvina mushure mekudhinda.Kuwanda kwezvinosvibisa kwakakwira, kusanganisira slurry, dhayi, additives, nezvimwewo, uye BOD neCOD zvese zvakakwirira.
Huwandu hwemvura yetsvina kubva mukudhinda uye kudhaya tsvina yekuchenesa idiki, iyo ine machipisi efiber, resin, oiri ejenti, uye slurries.
Kudhinda nekudhaya mvura yetsvina alkali yekudzikisa tsvina yemvura inogadzirwa kubva mukuderedza alkali maitiro epolyester yekutevedzera sirika, kunyanya ine polyester hydrolysates senge terephthalic acid uye ethylene glycol, ine terephthalic acid inosvika 75%.Alkaline kuderedza tsvina yemvura haina kungova nepH yakakwira (kazhinji> 12), asi inewo huwandu hwakanyanya hwezvinhu zvehupenyu.Iyo CODCr mumvura yetsvina inoburitswa kubva mukuderedza alkali maitiro inogona kusvika kusvika 90000 mg/L.High molecular organic compounds uye mamwe madhayi akaoma kushandura biodegrade, uye rudzi urwu rwemvura inorasa ndeyepamusoro-soro uye yakaoma kudzikisa organic tsvina.
Kudhinda uye kudhaya tsvina yekuchenesa mvura inoshandisa zviitiko zvehupenyu zveanaerobic uye aerobic bhakitiriya kushandisa zvinosvibisa zvemukati mumvura ine tsvina.Panguva imwecheteyo, iyo biological flocculents inoumbwa nema microorganisms inokanganisa uye inoyerera yakamiswa uye colloidal organic zvinosvibisa, adsorb pamusoro peiyo activated sludge, inoshatisa organic zvinhu, uye pakupedzisira inowana mhedzisiro yekuchenesa mvura yakasviba.
Midziyo yacho ine aeration yepasi pemvura, iyo inosundirwa nekuyerera kwemvura kuti iite dual function aeration.Paunenge uchigadzirisa tsvina, tsvina inoyerera ichipinda munzvimbo yeaeration kubva kumusoro kwechigadzirwa, uye aerator inopinda pasi pemvura aeration uye inosundira kuyerera kunomutsa tsvina.Mvura inouya inokurumidza kusanganiswa zvakakwana nemusanganiswa wepakutanga, kugadzirisa kune kuchinja kwehutano hwemvura inopinza kusvika pamwero mukuru.Iyo aerator ine mabasa maviri ekuyerera kwemvura uye kuyerera kwepasi pemvura, zvichiita kuti tsvina iri munzvimbo yeaeration itenderere nguva nenguva uye kuwedzera iyo yakanyungudika yeokisijeni mutsvina.Nekuda kwekuenderera kutenderera uye kuyerera kwetsvina munzvimbo yeaeration, mhando yemvura pane imwe neimwe nzvimbo munzvimbo yacho yakaenzana, uye huwandu uye zvimiro zvehutachiona hwakafanana.Naizvozvo, mamiriro ekushanda echikamu chimwe nechimwe cheaeration zone anenge anoenderana.Izvi zvinodzora iyo yese biochemical reaction pasi pezvakanaka uye zvakafanana mamiriro.Organic matter inoderedzwa zvishoma nezvishoma nema microorganisms, uye tsvina inocheneswa.Kushanda kwekuchenesa kwakakwirira, uye zviratidzo zvose zvemvura zvinosangana nemitemo yekubudiswa kwenyika "Emission Standards for Pollutants in the Textile Dyeing and Finishing Industry" (GB 4267-92).Zvinoenderana nezvinodiwa nevatengi, zvimwe zvivakwa zvinotsigira zvinogona kupihwa ozone yakasimba oxidation yakadzika kurapwa kuti isangane ne "Mvura Yemhando Miyero yeUrban Wastewater Recycling uye Landscape Environment Water" (GB/T 18921-2002) zviyero zvekudzokorodza uye kushandiswa.印染污水Inoshanda. chiyero chemidziyo yekugadzirisa:
Iyi yakasanganiswa kudhinda uye kudhayira yemvura yetsvina michina inokodzera kurapwa kweakasiyana epamusoro, epakati, uye akaderera kudhinda uye dhayi mvura yetsvina, senge yakarukwa kudhinda uye dhayi mvura yetsvina, kupenda mvere uye kupedza tsvina, sirika dhayi uye kupedza tsvina, kemikari fiber dyeing. uye kupedza tsvina, donje rakarukwa nedonje rakasanganiswa machira ekudhaya uye kupedza tsvina.
Nguva yekutumira: Jun-05-2023