ʻO Changshengqiao landfill kahi kahua hoʻolei ʻōpala maʻamau me ke ʻano o ka ʻāina he 690,642 m. ³ , kahi ʻāpana ʻāina ma kahi o 379,620 m ³ a me ka mana hoʻolālā ma kahi o 14 miliona m ³ . Ua hoʻohana ʻia ka pae ʻāina i ka hopena o Iulai 2003 a ua pani ʻia i ka hopena o 2016. Ua hoʻopaʻa ʻia a hoʻihoʻi ʻia mai ka makahiki 2018.

Hoʻolālā ʻia ka hale lapaʻau leachate i kēia manawa ma Changshengqiao Landfill ma ke ʻano he 1,730 ton/d hale, nona kahi ʻōnaehana 400 ton/d MBR+DTRO a me 1,330 ton/d STRO ʻōnaehana mālama pilikia. I kēia manawa, hoʻopuka nā ʻōnaehana MBR+DTRO ma kahi o 100 tons o ka leachate concentrate i kēlā me kēia lā, a ʻo ka hale STRO e hana ma kahi o 400 tons concentrate i kēlā me kēia lā. Hoʻohui ʻia ka concentrate leachate i hana ʻia a mālama ʻia i loko o ka wai hoʻohālikelike i loko o ka pae ʻāina, kahi o 38,000 m. ³ mālama ʻia i loko o ka pae ʻāina a ma kahi o 140,000 m ³ mālama ʻia ma waho o ka pae ʻāina. Kokoke piha ka mana mālama o ka pūnaewele, me nā pōʻino koʻikoʻi o ke kaiapuni.

ʻO ka ʻōnaehana hoʻomaʻamaʻa leachate i loko o kēia pāhana ka nui o ʻelua concentrate, ʻo ka MBR+DTRO concentrate me ka mālama biochemical holomua, a ʻo kekahi ʻo STRO concentrate me ka ʻole o ka lāʻau biochemical. ʻOkoʻa loa ka maikaʻi o ka wai o nā concentrates ʻelua, a ʻo ka mea lapaʻau o kēia papahana ʻo ia ka concentrate hui ʻia.

Hoʻopiha piha i ka mālama ʻana i ka leachate ma ka ʻāina ʻāina i loko o 3 mau mahina o ka hana kūhelu.

Hoʻopiha piha i ka mālama ʻana i ka leachate ma loko a ma waho o ka ʻāina hoʻopaʻa ʻāina i loko o 18 mau mahina o ka hana kūhelu.

Hoʻopili ka leachate hou i ka manawa like i kēlā me kēia lā.

Wahi a ka hōʻike o ka wai wai o ka wai laʻana a me ka ʻike o kā mākou hui i nā papahana like, ʻo ka hoʻolālā ʻana i ka maikaʻi o ka wai hānai o kēia papahana penei:

ZLD 1,000 m³/d kaʻina hana lapaʻau
Pretreatment + Concentration + Evaporation + Desiccation

Aia i loko o ka pahu hoʻohālikelike i loko o ka pahu hoʻohālikelike i hoʻopaʻa ʻia (SS) a he paʻakikī hoʻi. Pono e wehe ʻia lāua ʻelua ma ka hoʻomaʻamaʻa ʻana a me ka hoʻomaʻamaʻa TUF.

Hoʻopili ʻia ka effluent mai ka palupalu ʻana e ka membrane material. ʻO ke koho ʻana o ka membrane waiwai ma muli o ke kaumaha molekala kūpono. E like me ka hopena hoʻokolohua, hiki ke hoʻoholo i ke kaumaha molekala kūpono. I kēia hihia, hiki ke hōʻole ʻia kahi ʻāpana o ka colloid a me macromolecular organik e ka membrane mea i koho ʻia me ka hōʻole ʻole i ka paʻakikī a me ka paʻakai. Hiki i kēia ke hāʻawi i kahi kūlana maikaʻi no ka hana HPRO a me MVR. Ma waho aʻe, hiki i ka ʻōnaehana ke hoʻihoʻi i ka 90-98% me ka haʻahaʻa haʻahaʻa haʻahaʻa ma muli o nā ʻano membrane material. Hoʻohui ʻia, mālama ʻia kahi mea liʻiliʻi o ka concentrate e ka desiccation.

Hoʻopili ʻia ka effluent mai ka memtrane mea e HPRO. Ma muli o ka hoʻohana ʻana o ka HPRO i ka module anti-pollution disc membrane, hiki iā ia ke noʻonoʻo nui i ka wai maka, e hōʻemi ana i ka nui o ka wai evaporated. No laila, hiki ke mālama ʻia ke kumukūʻai holoʻokoʻa a me ka hana.

He maikaʻi ka maikaʻi o ka permeate mai ka membrane material no ka hōʻemi ʻana i ka nui o ka anti-foam agent i hoʻohana ʻia i ka ʻōnaehana evaporation MVR. Hiki i kēia ke hoʻopau maikaʻi i ke ʻano huʻa. Eia kekahi, ʻaʻole hiki ke hoʻopaʻa ʻia ka paʻakai e ka mea organik, kahi mea e pono ai no ka crystallization evaporation paʻa a hoʻomau. Ma waho aʻe, ʻoiai hiki i ka ʻōnaehana MVR ke hana i nā kūlana acidic me ke kaomi maikaʻi ʻole a me ka haʻahaʻa haʻahaʻa, hiki ke pale ʻia ka scaling a me ka corrosion phenomenon. Eia kekahi, paʻakikī ka hoʻoulu ʻana, e alakaʻi ana i ka maikaʻi condensate evaporation maikaʻi. Hoʻi ka MVR permeate i ka ʻōnaehana membrane no ka mālama hou ʻana ma mua o ka hoʻokuʻu ʻana. Hana ʻia ka brine mai MVR e ka maloʻo.

ʻEkolu ʻano o ka ʻōpala i hana ʻia ma kēia papahana, pono e mālama ʻia. ʻO lākou ka ʻōpala inorganic mai ka hoʻomaʻamaʻa mua ʻana, ka ʻōpala brine mai ka crystallization evaporation a me ka lepo mai ka maloʻo.

Ua hoʻopaʻa inoa ʻia ka ʻaelike i Nowemapa, 2020. Ua hoʻokomo ʻia nā mea hana me 1000 m³/d a ʻae ʻia i ʻApelila, 2020. Hiki ke manaʻo ʻia ka papahana Jiarong Changshengqiao concentration ZLD e like me ka WWT industry benchmark.