He aha ka ʻōpala o ka lumi kuke i ka hopena o ke kaiapuni

Hoʻonui nā ʻāpana ʻōpala o ka lumi kuke i ka ukana o ke kalapona kūlohelohe i hiki i ka hale mālama wai, ʻo ia ka mea e hoʻonui ai i ka ʻai ʻana o ka oxygen.Ua helu ʻo Metcalf lāua ʻo Eddy i kēia hopena ma ke ʻano he 0.04 paona (18 g) o ke koi oxygen biochemical i kēlā me kēia kanaka i kēlā me kēia lā kahi e hoʻohana ʻia ai nā disposers. Ua hana maikaʻi ka mea hoʻolele in-sink e pili ana i ka hoʻololi ʻana i ke aniau, ka acidification, a me ka hoʻohana ʻana i ka ikehu, ua kōkua ia i ka eutrophication a me nā mea ʻona.

Hiki paha kēia i nā kumukūʻai kiʻekiʻe no ka ikehu e pono ai e hoʻolako i ka oxygen i nā hana lua.Eia nō naʻe, inā e hoʻomalu maikaʻi ʻia ka mālama ʻana i ka wai ʻōpala, hiki i ke kalapona kūlohelohe i loko o ka meaʻai ke kōkua i ka mālama ʻana i ka palaho bacteria, no ka mea, nele paha ke kalapona ma ia hana.ʻO kēia kalapona i hoʻonui ʻia he kumu kūʻai kūʻai ʻole a hoʻomau o ke kalapona e pono ai no ka wehe ʻana i nā meaʻai olaola.

ʻO kekahi hopena, ʻoi aku ka nui o ke koena paʻa mai ke kaʻina hana mālama wai ʻino.Wahi a kekahi noiʻi ʻana ma ke kahua hoʻomaʻemaʻe wai ʻōpala o East Bay Municipal Utility District i kākoʻo kālā ʻia e ka EPA, hoʻopuka ka ʻōpala meaʻai i ʻekolu mau manawa o ka biogas ma mua o ka hoʻohālikelike ʻana i ka lepo lepo.ʻO ka waiwai o ka biogas i hana ʻia mai anaerobic digestion o ka ʻōpala meaʻai ʻoi aku ka nui o ke kumukūʻai no ka hoʻomaʻamaʻa ʻana i ka ʻōpala meaʻai a me ka hoʻolei ʻana i nā biosolids koena (ma muli o kahi noi LAX Airport e hoʻohuli i 8,000 tons/makahiki o ka ʻōpala meaʻai nui).

Ma kahi noiʻi ma Hyperion sege treatment plant ma Los Angeles, ua hōʻike ʻia ka liʻiliʻi o ka hoʻohana ʻana o ka mea hoʻopau i ka nui o nā biosolids byproduct mai ka hoʻomaʻemaʻe ʻana a me ka hopena liʻiliʻi i ka lawelawe ʻana i nā kaʻina hana e like me ka hoʻopau ʻana i nā solids volatile kiʻekiʻe (VSD) mai ka ʻōpala ʻai. ka nui o nā mea paʻa i ke koena.

ʻO ka hoʻohana ʻana i ka mana he 500–1,500 W, hoʻohālikelike ʻia me ka hao uila, akā no ka manawa pōkole loa, ʻo ka huina o 3-4 kWh o ka uila no kēlā me kēia hale i kēlā me kēia makahiki. L) o ka wai i kēlā me kēia kanaka i kēlā lā i kēia lā, e hoʻohālikelike ʻia me kahi ʻauʻau lua hou.Ua loaʻa i kekahi noiʻi o kēia mau ʻāpana hana meaʻai he piʻi iki ka hoʻohana ʻana i ka wai o ka hale.