Ke kānana piha a me ke kānana pili

I ke koho ʻana i ka hale kānana / kānana mea, ʻAʻole lawa inā e noʻonoʻo wale i ka helu kānana a me ka nui o ka hale kānana, akā pono nō hoʻi e noʻonoʻo i ka pono kānana.

1. Ka helu helu:

I ka wā ma mua, ua hoʻohana ʻia ka helu nominal e wehewehe i ka pololei kānana o ka kānana.

Eia nō naʻe, ʻaʻole liʻiliʻi ka helu helu nominal i ka hoʻohana pono ʻana. Hōʻike nā hoʻokolohua e hiki ke hele i nā ʻāpana haumia me ke anawaena o 200um i ka mea kānana me ka helu niminal o 10um i kekahi mau hihia. ʻaʻole i manaʻo ʻia he mea hoʻohālike, no laila ua hoʻopau ʻia i kēia manawa

2.Absulute helu:

ʻO Absolute Rating kahi hōʻailona maʻamau o nā kikoʻī kikoʻī kikoʻī o ka kānana Absolute rating ʻo ia ke ʻano o ka nui o ke anawaena o nā ʻāpana i hiki ke hele i loko o ka kānana, I nā microns, ʻo ia ka nui o ka nui o ka pore o ka kānana, inā ʻoi aku ka nui o ka Particulate ma mua o kēia nui pore, ʻo ia. ʻAʻole hiki ke hele i loko o ka mea kānana, no laila ua kānana ʻia e wehe.ʻOi aku ka pololei o ka helu piha ma mua o ka helu nominal a ʻoi aku ka maikaʻi o ka hōʻike ʻana i ka liʻiliʻi liʻiliʻi e hiki ai i ka kānana ke hoʻopili，Akā ʻaʻole ʻōpoʻomaʻo a pau nā ʻāpana.ʻAʻole i maʻamau ke ʻano o lākou， Eia kekahi, ʻaʻole kūlike ka lua kānana o ka mea kānana ma muli o ke kaʻina hana no laila hiki ke loaʻa nā iʻa nui aʻe e pakele i ka ʻupena.No laila, aia kekahi ʻokoʻa ma waena o ka helu piha a me ka hoʻohana pono

3.Ka helu Beta:

I kēia manawa,ʻo ka hōʻailona maʻamau o ka kānana pololei a me ka pono,ʻo ia ka Beta Rating (Beta waiwai).ʻO ka Beta Rating ka ratio kānana,ʻo ia ka lakio o ka helu o kekahi mau pore nui i loko o ka wai ma luna a me lalo. o ka mea kānana ,I kaʻikeʻana i ka hopena kānana o ka mea kānana.ʻO ka mea mua, ʻike ʻia ka helu a me ka nui o nā ʻāpana haumia o kekahi nui i loko o ka leo ʻāpana i ka ʻaila i luna o ka mea kānana e kahi mea ana.A laila, ana ʻia ka helu a me ka nui o nā ʻāpana i ka ʻaila o lalo o ka mea kānana.A laila, ua māhele ʻia ka helu o ka upstream me ka helu o lalo, a ʻo ka ratio i loaʻa ʻo ia ka filtration ratio

No ka laʻana, ke ʻike ʻia ka upstream o ka mea kānana, ʻo ka helu o nā ʻāpana me ka nui o ka nui ma mua o 5 microns ʻo 10. Ma hope o ka kānana ʻana e ka mea kānana, ʻo ka helu o nā ʻāpana ma luna o 5 microns i ana ʻia i lalo he 1, a laila pili. i ka pae pololei o 5 microns, ʻo ka filtration ratio o ka mea kānana he 10/1=10, i kaha ʻia ʻo β5 = 10. ʻIke loa, ʻoi aku ka nui o ka waiwai β, ʻoi aku ka maikaʻi o ka hopena kānana. i ka pololei kānana, akā no ka ʻike ʻana i ka lakene kānana. ʻO ka lawe ʻana i nā ʻāpana 5 micron ma ke ʻano he laʻana, inā he 1 miliona/mL ka nui o nā mea i ana ʻia i luna, a laila hōʻike ʻia ka nui o lalo a me ka kānana i ka papaʻaina.

Inā hōʻike ʻia ka pono kānana o ka mea kānana e ka pākēneka, ʻo ke kumu hoʻololi ((β-1)/ β-value) x 100. No ka laʻana, ma ka papa ma luna, ʻo ka β-value he 20, a me ka pākēneka hoʻololi. o ka pono kānana he201)/ 20=19/20=0.95,0.95*100=95%

No laila, no ka mea kānana me kahi kānana pololei o 5 microns, inā he 10 ka waiwai β, ʻo ka pākēneka kānana he 90%, a no nā mea ʻeleʻele me ka nui a i ʻole like me 5 microns, 90% hiki ke kānana. He mea nui e hoʻomaopopo ʻoiai hiki i ka beta ke kōkua iā mākou e hoʻomaopopo i ka hopena kānana kānana, loaʻa ka waiwai kuhikuhi, akā ʻo ka beta e hōʻike ana i ka pono filtration e ʻokoʻa iki paha me ka hoʻololi ʻana o ke kahe a me ka mahana, ke koho ʻana i nā lako kānana, pono e hoʻolohe. i ka hoʻohana ʻana i ka mahana, ka kahe kahe maoli, ka waiwai i ka hopena kānana o ka viscosity a me nā kūlana pili

Eia kekahi, ʻaʻole hiki i ka waiwai β ke wehewehe i ka hiki ke lawe ʻia o ka kānana, i ka hoʻohana ʻana, inā he liʻiliʻi ka pollutant, a he kaumaha nā mea haumia i loko o ka mea, e hoʻopaʻa koke ʻia ka mea kānana, no laila e hoʻopili ai i ka hopena hoʻohana.No laila, ke kūʻai ʻoe, pono ʻoe e ʻike i ka lawe ʻana i ka pollutantka mana o ka eleme kānana