Ka hoʻohana ʻana i nā mea hoʻonaninani reverse osmosis membrane kiʻekiʻe i ka mālama ʻana i ka wai

ʻenehana hoʻokaʻawale membrane RO

Hoʻohana ka ʻenehana hoʻokaʻawale ʻana o RO membrane i ka ʻokoʻa o ke kaomi static ma waena o ka membrane e like me ka ikaika hoʻokele. ʻO nā molekala liʻiliʻi, e like me nā mole wai, e lanakila i ke kaomi osmotic e hele i loko o ka membrane RO, a laila e hoʻokaʻawale iā lākou mai nā haumia. ʻO ke kaomi hana ma waena o 1.5 a me 10.5 MPa, a hiki i ka ʻōnaehana ke mālama i nā molekole liʻiliʻi o 1 a 10A.

I ka hoʻomaʻamaʻa wai, ʻo RO, ma ke ʻano he kī nui, hiki ke hoʻoneʻe ma mua o 97% o nā mea inorganic soluble, 99% o nā mea organik me ke kaumaha molekala pili o 300 a i luna, ʻoi aku ma mua o 99% o nā ʻāpana like ʻole me ka bacteria, a me 95% o SiO2 i ka wai.

ʻO ka wahi noi nui loa o ka home no ka reverse osmosis membranes e noho mau ana i ka wai hānai boiler nui, a ukali ʻia e nā wai maʻemaʻe ʻenehana a me nā mākeke wai inu. Ua hōʻea nā noi membrane i kahi pae koʻikoʻi i ka uila, semiconductor, pharmaceutical, medical, food, drink, alcohol, chemical, environmental protection, metallurgy, and textile industry. ʻO nā noi e hiki mai ana e pili ana i ka mālama ʻana i ka wai ʻino no ka wai hoʻoluʻu mea kanu, ka desalination wai kai nui, ka desalination wai brackish, a me ka mālama ʻana i ka wai ʻino o ke kūlanakauhale a me ka ʻoihana.

Ka hoʻohana ʻana i ka membrane RO i ka mālama ʻana i ka wai

1Hoʻohana i ka hoʻomaʻemaʻe wai paʻakai kiʻekiʻe

(1) ʻO ka hoʻomaʻamaʻa maikaʻi ʻana o ka wai hoʻoneʻe kiʻekiʻe-mineralization, i hōʻike ʻia e koʻu wai, ua ʻike ʻia e ka paʻakai kiʻekiʻe, ʻoi aku ka nui o ka wai i waho o ka honua, me ka nui o ka paʻakai ma mua o 1000 mg/L. ʻO nā ʻāpana organik o SS i loaʻa ka nui o Ca2+Mg2+K+, Cl-, SO42-, HCO3 a me HCO3- ʻaʻole i emi iho ma mua o 1.5 mg/L. No nā wahi mining me ka nele o ka wai, ua hoʻolaha nui ʻia ka hoʻohana ʻana i ka ʻenehana reverse osmosis no ka mālama hohonu ʻana i ka hana a me ka wai kūloko.

Me ka hoʻohana ʻana i ka wai mineral ma ke ʻano he mea hoʻomaʻamaʻa mua, ua hoʻohui ʻia ka flocculation, sedimentation, a me ka kānana wikiwiki e hoʻoneʻe i ka hapa nui o ka SSS i loko o ka wai, ka hopena i ka ʻili o ka osmosis inlet turbidity ma lalo o 1 NTU. Ma hope o ka hoʻoponopono ʻana i ka osmosis, ua hoʻokokoke ka nui o ka hoʻoneʻe ʻana i ka effluent turbidity i 100%, me ka helu desalination o 96%.

(2) ʻO ka hoʻomaʻemaʻe wai metala

ʻO kaʻoihana kila, kahi waiwai waiwai, wai-nui a me ka haumia nui, he 14% o ka nui o ka wai o Kina. Hoʻohana nui ʻia ka wai ʻōpala ʻoihana kila i ka ʻoihana metallurgical. He mea paʻakikī ko ka wai ʻinoʻino a lele nui i nā ʻāpana like ʻole, ʻoi aku ka nui o nā kiʻekiʻe o Ca2+, Mg2+, Fe2+, Mn2+, SO42-, F, a me SiO2. ʻO ka hiki ʻole ke wehe mua i nā mea hoʻoheheʻe metala kiʻekiʻe i loaʻa ma ka membrane reverse osmosis hiki ke alakaʻi i ka haumia inorganic koʻikoʻi.

No ka wai ʻino mai kahi mea kanu kila e mālama ʻia ana i ka lāʻau biochemical lua, hana mua ʻia ka ea i loko o kahi pahu ea e hoʻoheheʻe ai i ka Fe2+ a i ka Fe3+. I ka manawa like, hoʻohui ʻia ʻo NaClO e hoʻomaikaʻi i ka mana Fe2+ oxidation a me ka pono bactericidal. Hoʻohui ʻia ka waiū lime e hoʻoponopono i ka pH, a ukali ʻia e ka flocculation me PAM a me PAC. Hoʻohana ʻia ka sedimentation, ka kānana wikiwiki, a me ka adsorption kalapona i hoʻāla ʻia no ka wehe ʻana i nā mea olaola, koena chlorine, a me nā ion metala kaumaha. Ma hope o ka mālama ʻana iā UF, mālama ʻia ka effluent me kahi mea hoʻemi. Hoʻokomo nā mea hoʻopale unahi a me ka waikawa i ka ʻōnaehana RO.

2 Hoʻohana i ka mālama ʻana i ka wai ʻōpala organik refractory

ʻO ka paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻōpala a me ka petrochemical wastewater treatment, paʻi ʻana a me ka hoʻoluʻu ʻana i ka wai ʻino, ma waho aʻe o ka nui o nā dyes, slurries, inorganic paʻakai, nā waikawa a me nā alkalis, loaʻa nā ʻano a hiki i 4000 mau manawa o ka waihoʻoluʻu, nui ka nui o ka wai, kiʻekiʻe maʻiʻo o nā pollutants organik, ʻano wai like ʻole. ʻo nā ʻōpala, a ʻo nā mea haumia ke hele mai mai ka microbial decomposition o ka ʻōpala a me ka ua. He paʻakikī ka maikaʻi o ka wai, a ʻoi aku ka kiʻekiʻe o ka COD ma mua o ka wai o ke kūlanakauhale. Eia kekahi, ua loaʻa i ka leachate nā ʻāpana metala like ʻole, e like me Fe2+, Cd2+, Cr3+, Cu2+, Zn2+, a me ka ʻike Fe2+ i ka wā o ka fermentation.

ʻOiai ua hoʻohana nui ʻia ke kaʻina hana lāʻau biochemical ʻelua A/O no ka hoʻohaʻahaʻa ʻana i nā mea organik a me ka denitrification i loko o ka leachate landfill, ʻaʻole paʻa ka hana effluent. No laila, ma muli o ka mīkini kānana, ʻo ka hoʻohana ʻana i nā membrane ultrafiltration a me A / O e hana i kahi kaʻina MBR ua hoʻomaikaʻi i ka neʻe ʻana o nā mea kūlohelohe i ka leachate landfill.

ʻO ka effluent, ma hope o ka hoʻokaʻawale ʻana o ka lepo ma o nā membrane ultrafiltration, komo i kahi ʻōnaehana nanofiltration (NFN). Hiki i ka NF ke hoʻokaʻawale maikaʻi i nā mea olaola me ke kaumaha molekala o 200m a 2000m a hiki ke hoʻohana ʻia no ka hoʻokaʻawale ʻana i kekahi mea waiwai nui mai ka wai i hana ʻia e MBR. Ua mālama ʻia ka noiʻi ma nā waiwai o nā ion metala a me ka MBR+NF+RO ʻekolu-layer membrane composite kaʻina hana lapaʻau. Hōʻike nā hualoaʻa i ka holo pono ʻana o ke kaʻina hana, a ʻo ka maikaʻi o ka effluent e kūpono ana i nā kūlana hoʻomalu haumia no nā ʻōpala ʻōpala paʻa kūloko.

I ka wā o ka hana, inā hoʻokō ka effluent NF i nā koi hoʻokuʻu, hiki ke hoʻokuʻu pololei ʻia. A i ʻole, hiki ke mālama hou ʻia me ka hoʻohana ʻana i ka ʻōnaehana RO. Ua hōʻike ʻia ka noiʻi ʻana i ke kaʻina hana Ar/O-MBR+NF+RO no ka mālama ʻana i ka leachate landfill i ka hoʻohui ʻana o ke kalapona i hoʻāla ʻia i ka reactor A/O ʻaʻole wale ka hoʻomaikaʻi ʻana i ka maikaʻi o ka wehe ʻana i nā mea ola a me nā metala kaumaha akā e hōʻemi ana hoʻi i ka puka ʻana o ka membrane.

3 No ka hoʻohana ʻana i ka lāʻau lapaʻau kiʻekiʻe

Ua hoʻokumu pū ʻo Kina i nā mea kanu wai hou i Beijing, Tianjin, Hebei, Shandong a me nā wahi ʻē aʻe. Ma waena o lākou, hoʻohana kekahi mau kikowaena hoʻolaʻa wai hou i ka "UF (MF) + RO" pālua membrane kaʻina hana e mālama i ʻelua mau ʻano o ke kaona o ke kūlanakauhale i loko o ka wai maka, e hana ana i ka wai recycled kiʻekiʻe, i hoʻohana ʻia ma ke ʻano o ka wai no nā mea kanu thermal boiler a hoʻohana ʻia kekahi ʻāpana e like me nā kahawai ʻāina a me nā wai like ʻole.

Hoʻohana ʻia ka MBR i hui pū ʻia me ka reverse osmosis e mālama i ka wai ʻōpala kūloko no ka hoʻohana hou ʻana. Ua loaʻa i ka wai nā pae TOC

No ka hoʻohana piha ʻana i nā pono o ka ʻenehana reverse osmosis, e hōʻemi i ka fouling membrane, a hoʻohaʻahaʻa i nā kumukūʻai mālama wai, ua kūkulu kā mākou hui i kahi ʻano o nā kaʻina hana i hoʻohālikelike ʻia i nā ʻano o ka maikaʻi o ka wai. Hoʻohana mau ʻia nā ʻano hana hoʻomaʻemaʻe wai kuʻuna, e like me ka coagulation a me ka sedimentation, kiʻekiʻe-concentration, a me ka kānana kiʻekiʻe-efficiency, no ka wehe ʻana iā SS. Hoʻohana ʻia ka NaClO, ka waiu lime, a me nā kānana one manganese e hōʻemi i ka RO, nā paʻakai manganese, nā paʻakai calcium, a me nā paʻakai silica i loko o ka ʻōnaehana Sargassum aeration a me ka oxidation. Hoʻohana ʻia ka oxidation O3 no ka mālama ʻana i ka mea hoʻokalakupua A/O recalcitrant. Hoʻohana ʻia ʻo MBR, UF, a me NF no ka mālama ʻana i ka SS maikaʻi a me nā molekala liʻiliʻi. Hoʻohui ʻia nā iona kiʻekiʻe me ka UF + RO a i ʻole MBR + RO ʻelua-membrane ʻōnaehana, a i ʻole MBR + NF + RO triple-membrane ʻōnaehana, e hōʻoiaʻiʻo ana i ka hana ʻana o ka ʻōnaehana paʻa a me ka hōʻoia ʻana i ka mālama ʻana o RO i ka wai ʻōpala organik recalcitrant.

Nā Manaʻo Hui

"HID Membrane" e kālele ana i ka ʻenehana hoʻokaʻawale membrane a me ka hoʻomohala ʻana i nā huahana membrane, e hāʻawi ana i nā mea kūʻai aku me ka hoʻokaʻawale ʻana i ka wai ʻoihana, ka hoʻonā ʻana o ka membrane a me ka hoʻonohonoho piha ʻana o nā lako ʻōnaehana mai ka hana ʻana o ka membrane, noiʻi noiʻi a me ka hoʻomohala ʻana, kūkākūkā papahana, hoʻohui pūnaewele i nā lawelawe ʻenehana hoʻohui.

Ua paʻa ka brand i ka ʻenehana hoʻomaʻemaʻe wai ʻenehana a me nā noi huahana membrane no nā makahiki he 16. Ua paionia i ka honua mua i loko o ka nui noi kahua o reverse osmosis membranes, hōʻiliʻili waiwai noi ka hoao ana, a loaa he nui invention patents a me ka pono kükohu patents i pili kahua, e hoopiha ana i na mea he nui ma ka home a ma waho, a he kūlana kiʻekiʻe ma ka oihana.