Ma muli o ka ʻikepili kūʻai aku hou, ua kiʻekiʻe mau ka nui o nā kauoha i loaʻa iā Liding Environmental Protection no nā lako hana AAO. He aha nā mea e hilinaʻi nui ai nā mea kūʻai aku i kēia kaʻina hana? A laila, e hoʻolauna ʻo Liding Environmental Protection i ke ʻano o ke kaʻina hana AAO.
ʻO ke kumu o ke kaʻina hana AAO, ʻo ia ka hoʻohana ʻana i ka nitrification a me ka denitrification o nā meaola ma lalo o nā kūlana like ʻole e hoʻokō ai i ka wehe ʻana o ka naikokene, a e hoʻohana i nā bacteria hōʻiliʻili phosphorus e wehe i ka phosphorus. No laila, ʻoi aku ka kūpono o kēia kaʻina hana no nā papahana me ka kaohi paʻa o nā mea haumia naikokene a me ka phosphorus. ʻO nā hana nui o nā lako hana hoʻomaʻemaʻe wai ʻino kūloko o ke kaʻina hana AAO e kālele ʻia ana i ʻekolu mau modula hana, ʻo ia hoʻi ka loko anaerobic, ka loko anoxic a me ka loko aerobic.
Ma ka ʻāpana hana anaerobic, ma muli o ka nele o ka nitrate a me ka oxygen i loko o ka wai o nā lako hana hoʻomaʻemaʻe wai kūloko, mālama nā bacteria e hōʻiliʻili ana i ka phosphorus i ka ikehu i loko o nā hui e hōʻiliʻili ana i ka phosphorus a hoʻokuʻu i nā radical phosphate i ka manawa like, ʻoiai ʻaʻole hana nā bacteria ʻē aʻe. Ma kēia module hana, ʻoi aku ka liʻiliʻi o ka hana a me ka paʻakikī o ka ulu ʻana o nā bacteria ʻē aʻe. Hoʻohana ʻia ka module hana anaerobic e hōʻemi i ke COD a hoʻomākaukau no ka wehe ʻana o ka phosphorus.
I loko o ke modula hana anoxic, loaʻa i ka wai o nā lako hana hoʻomaʻemaʻe wai kūloko kahi nui o ka nitrate me ka ʻole o ka oxygen, a hoʻohana nā bacteria denitrifying i ka COD e hoʻemi i ka nitrate i ka nitrogen, hoʻokuʻu i ka alkali, a loaʻa ka ikehu no ka ulu ʻana. E hoʻemi i ka COD a me ka nitrate nitrogen.
ʻO ka module hana aerobic ka wahi hana koʻikoʻi o nā lako hana hoʻomaʻemaʻe wai ʻino home kuaʻāina. Maanei, hoʻopau ka bacteria nitrifying i ka ammonia nitrogen i ka nitrate nitrogen, hoʻopau i ka alkalinity a me ka oxygen, omo nā PAO i ka nui o ka phosphorus, hoʻohana i ka ikehu i loko o nā PHA e hana i ka polyphosphorus, a hoʻomau nā OHO i ka wehe ʻana i ka COD, PAOs, OHOs, a ulu nā bacteria nitrifying i kēia kaʻina hana. E hōʻemi i ka COD, ammonia nitrogen a me ka phosphorus.
Mai ka loiloi koi o nā papahana hoʻomaʻemaʻe wai ʻino kūloko ma nā wahi kuaʻāina, pono ke koho ʻana o ke kaʻina hana hoʻomaʻemaʻe wai ʻino e hoʻokō i nā koi o ka pae hoʻomaʻemaʻe, nā ʻano wai ʻino, ka maikaʻi o ka wai effluent a me ke kino wai hoʻokuʻu. I ka manawa like, pono e koho ʻia ke kaʻina hana hoʻomaʻemaʻe kūpono e like me nā ʻano o ka wai ʻino kūloko. Hōʻike nā hihia he nui he maikaʻi ka hoʻololi ʻana o nā lako hana hoʻomaʻemaʻe wai ʻino kuaʻāina AAO i nā ʻano papahana like ʻole.
Ka manawa hoʻouna: Iulai-06-2023