ʻO ka paʻi ʻana a me ka hoʻoluʻu ʻana i nā mea hana wai ʻino

ʻO ka paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻinoHoʻolālā ʻia a hoʻomohala ʻia no ka paʻi ʻana a me ke kala ʻana i ka wai me ka chromaticity kiʻekiʻe a me ka paʻakikī i ka decolorization, a me ka COD kiʻekiʻe, hiki ke hoʻoponopono maikaʻi i nā pilikia ʻenehana i ka paʻi mua ʻana a me ke kala ʻana i ke kaʻina mālama wai.Hiki ke hoʻokuʻu ʻia ka paʻi ʻana a me ka wai hoʻoluʻu ʻana i ka maʻamau ma hope o ka mālama ʻana.

ʻOkoʻa ka maikaʻi o ka wai o ka paʻi ʻana a me ke kala ʻana i ka wai ʻino ma muli o ke ʻano o ka fiber i hoʻohana ʻia a me ka ʻenehana hoʻoponopono, a ʻokoʻa loa nā mea haumia.ʻO ka paʻi ʻana a me ka waihoʻoluʻu ʻana i ka wai ʻino ma ke ʻano maʻamau, loaʻa nā hiʻohiʻona o ka neʻe ʻana o ka pollutant kiʻekiʻe, nā ʻano he nui, nā mea ʻona a me nā mea ʻino, a me ka chromaticity kiʻekiʻe.ʻO ka mea maʻamau, ʻo ka pH waiwai o ka paʻi ʻana a me ka wai ʻala ʻana he 6-10, CODCr he 400-1000mg/L, BOD5 he 100-400mg/L, SS he 100-200mg/L, a he 100-400 manawa ka chromaticity.

Akā i ka wā e hoʻololi ai ka paʻi ʻana a me ke kala ʻana, ke ʻano o nā fibers i hoʻohana ʻia, a me ka ʻenehana hana ʻenehana, e loli nui ka maikaʻi o ka wai.I nā makahiki i hala iho nei, ma muli o ka hoʻomohala ʻana o nā lole fiber kemika, ka piʻi ʻana o ka siliki hoʻohālike, a me ka holomua o ka ʻenehana a me ka hoʻopau ʻana i ka ʻenehana, ka nui o nā mea paʻakikī e hoʻohaʻahaʻa i nā pūhui organik e like me ka nui PVA, alkali hydrolysates o ka siliki artificial (ka nui o nā phthalates. ), a ua komo nā mea hoʻohui hou i ka paʻi ʻana a me ka hoʻoluu wai ʻino.Ua hoʻonui pū ʻia ka manaʻo CODCr mai nā haneli mg / L a ma luna o 2000-3000mg / L, ua hoʻonui ʻia ʻo BOD5 ma luna o 800mg / L, a ua hiki i ka waiwai pH i 11.5-12, Hoʻemi kēia i ka helu wehe ʻana o CODCr o ka lāʻau lapaʻau mua. ʻōnaehana mai 70% a ma kahi o 50%, a i ʻole ka haʻahaʻa.

He liʻiliʻi ka nui o ka wai ʻino i ka paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻino, akā kiʻekiʻe ka neʻe ʻana o nā mea haumia, aia nā ʻano nui like ʻole, nā huahana decomposition nui, nā chips fiber, starch alkali, a me nā mea hoʻohui like ʻole.ʻO ka wai hoʻoheheʻe he alkaline me ka waiwai pH ma kahi o 12. ʻO ka wai ʻōpala desizing me ka starch ka mea nui nui (e like me ka lole pulupulu) loaʻa nā waiwai COD a me BOD kiʻekiʻe a me ka biodegradability maikaʻi.ʻO ka wai ʻōpala me ka waiʻona polyvinyl (PVA) ma ke ʻano he mea nui nui (e like me ka polyester cotton cotton warp yarn) he COD kiʻekiʻe a me ka BOD haʻahaʻa, a maikaʻi ʻole ka biodegradability o ka wai ʻino.

ʻO ka paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻino ka nui o ka wai ʻōpala paila a me kahi kiʻekiʻe o ka pollutants, me ka cellulose, citric acid, wax, oil, alkali, surfactants, nitrogen-containing compounds, etc. he kala kala.

ʻO ka paʻi ʻana a me ke kala ʻana i ka wai ʻino ka nui o ka wai hoʻomaʻemaʻe bleaching, akā maʻalahi ka pollution, aia i loko o ke koena bleaching agents, liʻiliʻi o ka acetic acid, oxalic acid, sodium thiosulfate, etc.

ʻO ka paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻōpala mercerizing wastewater he ʻano alkali kiʻekiʻe, me ka ʻike NaOH mai 3% a 5%.Hoʻihoʻi ka hapa nui o nā mea kanu paʻi a me ka waihoʻoluʻu iā NaOH ma o ka hoʻoheheʻe ʻana a me ka noʻonoʻo ʻana, no laila ʻaʻole pinepine ka hoʻokuʻu ʻia ʻana o ka wai mercerizing.Ma hope o ka hoʻohana pinepine ʻana, ʻoi aku ka alkaline o ka wai ʻōpala hope loa, me ka BOD kiʻekiʻe, COD, a me SS.

ʻO ka nui o ka wai ʻino i ka paʻi ʻana a me ke kala ʻana he ʻano nui, a ʻokoʻa ka maikaʻi o ka wai ma muli o nā kala i hoʻohana ʻia.Loaʻa iā ia nā slurries, dyes, additives, surfactants, etc., a he alkaline ikaika loa me ka chromaticity kiʻekiʻe.ʻOi aku ka kiʻekiʻe o ka COD ma mua o BOD, a ʻilihune kona biodegradability.

ʻOi aku ka nui o ka paʻi ʻana a me ka waiho ʻana i ka wai ʻino.Ma waho aʻe o ka wai ʻino mai ke kaʻina paʻi, ʻo ia pū kekahi me ke kopa a me ka wai holoi holoi wai ma hope o ka paʻi ʻana.He kiʻekiʻe ka manaʻo o nā mea haumia, me ka slurry, dyes, additives, etc., a kiʻekiʻe ka BOD a me COD.

He liʻiliʻi ka nui o ka wai ʻino mai ka paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻino, aia i loko o ka fiber chips, resins, oil agents, a me slurries.

Hoʻokumu ʻia ka paʻi ʻana a me ke kala ʻana i ka wai ʻōpala alkali hoʻemi ʻia ka wai ʻino mai ke kaʻina hana hoʻohaʻahaʻa alkali o ka siliki hoʻohālikelike polyester, ka nui o nā polyester hydrolysates e like me terephthalic acid a me ka ethylene glycol, me kahi ʻano terephthalic acid a hiki i 75%.ʻAʻole wale ka waiwai pH kiʻekiʻe o ka wai hoʻohaʻahaʻa alkaline (maʻamau> 12), akā loaʻa pū kekahi kiʻekiʻe o nā mea kūlohelohe.ʻO ka CODCr i loko o ka wai ʻōpala i hoʻokuʻu ʻia mai ke kaʻina hana hoʻemi alkali hiki ke piʻi i ka 90000 mg/L.He mea paʻakikī ke hoʻoheheʻe ʻia ʻana o nā mea hoʻohuihui molekala kiʻekiʻe a me kekahi mau mea pena, a ʻo kēia ʻano wai ʻōpala no ka manaʻo kiʻekiʻe a paʻakikī ke hoʻohaʻahaʻa i ka wai ʻōpala.

Hoʻohana ka paʻi ʻana a me ka waihoʻoluʻu ʻana i nā hana ola o ka anaerobic a me ka aerobic bacteria e hoʻopau i nā mea haumia i loko o ka wai ʻino.I ka manawa like, ʻo nā flocculents biological i hoʻokumu ʻia e nā microorganisms destabilize a flocculate suspended and colloidal organic pollutants, adsorb ma luna o ka ʻili o ka sludge i hoʻāla ʻia, hoʻohaʻahaʻa i ka mea kūlohelohe, a hoʻokō i ka hopena o ka hoʻomaʻemaʻe wai.

Hoʻolako ʻia nā mea hana me ka aeration ma lalo o ka wai, i hoʻokuʻu ʻia e ka kahe wai e hana i ka aeration hana ʻelua.I ka wā e mālama ai i ka wai hoʻoheheʻe, kahe ka wai i loko o ka ʻāpana ea mai luna mai o ka mea hana, a e hoʻoheheʻe ʻia ka ea ma lalo o ka wai a hoʻokuʻu i ke kahe e hoʻāla i ka wai.Hoʻohui koke ʻia ka wai hoʻoheheʻe e komo mai me ka hui mua, e hoʻololi i ka hoʻololi ʻana i ka maikaʻi o ka wai inlet a hiki i ka nui loa.He ʻelua mau hana o ka aerator o ka hoʻoheheʻe ʻana i ka wai a me ka hoʻoheheʻe ʻana i lalo o ka wai, e hiki ai i ka wai hoʻoheheʻe i loko o ka aeration zone ke holo mau a hoʻonui i ka ʻike o ka oxygen i hoʻoheheʻe ʻia i loko o ka wai.Ma muli o ke kahe mau ʻana a me ke kahe ʻana o ka wai i loko o ka aeration zone, ua ʻano like ka maikaʻi o ka wai i kēlā me kēia wahi o ka ʻāpana, a ʻo ka helu a me nā waiwai o nā microorganism ke kumu like.No laila, ʻaneʻane kūlike nā kūlana hana o kēlā me kēia ʻāpana o ka aeration zone.Mālama kēia i ka hopena biochemical holoʻokoʻa ma lalo o nā kūlana maikaʻi a like.Hoʻohaʻahaʻa mālie ʻia nā mea ola e nā microorganism, a hoʻomaʻemaʻe ʻia ka wai ʻino.He kiʻekiʻe ka maikaʻi o ka hoʻomaʻemaʻe ʻana, a ʻo nā mea hōʻailona a pau o ka effluent e hoʻokō i nā kūlana hoʻokuʻu o ka "Emission Standards for Pollutants in the Textile Dyeing and Finishing Industry" (GB 4267-92).E like me nā koi o nā mea kūʻai aku, hiki ke hāʻawi ʻia nā mea kākoʻo hou aku no ka mālama ʻana i ka hohonu o ka ozone ikaika e hoʻokō i nā kūlana "Water Quality Standards for Urban Wastewater Recycling and Landscape Environment Water" (GB/T 18921-2002) no ka hana hou ʻana a me ka hoʻohana ʻana.印染污水Applicable laula o na lako hana:

He mea kūpono kēia paʻi paʻi a me ka hoʻoluʻu ʻana i ka wai ʻino no ka mālama ʻana i nā ʻano kiʻekiʻe, waena, a me ka haʻahaʻa o ka paʻi ʻana a me ka waiho ʻana i ka wai ʻino, e like me ka paʻi ʻia ʻana a me ka wai kala ʻia, ka huluhulu a me ka hoʻopau ʻana i ka wai ʻino, ka lole siliki a me ka hoʻopau ʻana i ka wai ʻino, ke kala kala kemika a me ka hoʻopau ʻana i ka wai ʻinoʻino, ka pulupulu i ulana ʻia a me ka pulupulu i hui ʻia i ka waihoʻoluʻu a me ka hoʻopau ʻana i ka wai ʻino.