IKE NEI OE I KA HEPA FILTER EFFICIENCY, SURFACE VELOCITY AND FILTER VELOCITY?

E kamaʻilio e pili ana i ka pono kānana, ka wikiwiki o ka ʻili a me ka wikiwiki kānana o nā kānana hepa. Hoʻohana ʻia nā kānana Hepa a me nā kānana ulpa ma ka hope o ka lumi maʻemaʻe. Hiki ke hoʻokaʻawale ʻia ko lākou mau ʻano: kānana hepa mini pleat a me kāna kānana hepa hohonu.

Ma waena o lākou, ʻo nā ʻāpana hana o nā kānana hepa e hoʻoholo ai i kā lākou kānana kānana kiʻekiʻe, no laila ke aʻo ʻana i nā ʻāpana hana o nā kānana hepa he mea nui loa. ʻO kēia ka hoʻolauna pōkole i ka pono kānana, ka wikiwiki o ka ʻili, a me ka wikiwiki kānana o nā kānana hepa:

Ka wikiwiki o ka ʻili a me ka wikiwiki kānana

Hiki i ka wikiwiki o ka ili a me ka kānana kānana o kahi kānana hepa ke hōʻike i ka hiki ke kahe o ka ea o ka kānana hepa. ʻO ka wikiwiki o ka ʻili e pili ana i ka wikiwiki o ka ea ma ka ʻāpana o ka kānana hepa, i hōʻike pinepine ʻia ma m/s, V=Q/F*3600. ʻO ka wikiwiki o ka ʻili he ʻāpana koʻikoʻi e hōʻike ana i nā ʻano hana o ka kānana hepa. ʻO ka wikiwiki kānana e pili ana i ka wikiwiki o ka holo ʻana o ka ea ma luna o kahi o ka mea kānana, i hōʻike ʻia ma L/cm2.min a i ʻole cm/s. Hōʻike ka wikiwiki kānana i ka hiki ke hele o ka mea kānana a me ka hana kānana o ka mea kānana. He haʻahaʻa ka filtration rate, ma ka ʻōlelo maʻamau, hiki ke loaʻa ka hana kiʻekiʻe. He haʻahaʻa ka filtration rate i ʻae ʻia e hele a nui ke kūpaʻa o ka mea kānana.

Kānana pono

ʻO ka "filter efficiency" o kahi kānana hepa ʻo ia ka lakio o ka nui o ka lepo i hopu ʻia i ka lepo lepo i loko o ka ea kumu: ka pono kānana = ka nui o ka lepo i hopu ʻia e ka kānana hepa/ka lepo i loko o ka ea i luna = 1-puehu ma loko. ea i lalo/upstream. He mea maʻalahi ka manaʻo o ka lepo lepo, akā ʻokoʻa ka manaʻo a me ka waiwai ma muli o nā ʻano hoʻokolohua like ʻole. Ma waena o nā mea e hoʻoholo ai i ka pono kānana, ʻo ka "nui" o ka lepo he mau manaʻo like ʻole, a ʻokoʻa hoʻi nā waiwai kūpono o nā kānana hepa i helu ʻia a ana ʻia.

I ka hoʻomaʻamaʻa, aia ka nui o ke kaumaha o ka lepo a me ka helu o nā ʻāpana lepo; i kekahi manawa, ʻo ia ka nui o ka lepo o ka nui o ka lepo maʻamau, i kekahi manawa ka nui o ka lepo a pau; aia nō ka nui o ka mālamalama e hōʻike pono ʻole i ka ʻike me ka hoʻohana ʻana i kahi ʻano kikoʻī, ka nui fluorescence; aia ka nui koke o kekahi moku'āina, a aia nō hoʻi ka nui awelika kaumaha o ka waiwai kūpono o ka hana holoʻokoʻa o ka hana lepo.

Inā hoʻāʻo ʻia ka kānana hepa hoʻokahi me nā ʻano ʻano like ʻole, ʻokoʻa nā waiwai kūpono i ana ʻia. ʻAʻole like nā ʻano hoʻāʻo i hoʻohana ʻia e nā ʻāina like ʻole a me nā mea hana, a ʻokoʻa loa ka wehewehe ʻana a me ka hōʻike ʻana o ka pono kānana hepa. Me ka ʻole o nā ʻano hoʻāʻo, hiki ʻole ke kamaʻilio e pili ana i ka pono kānana.