ʻO ka hoʻololiʻana a me ka hoʻomohalaʻana o ka hoʻomohalaʻana o ka hana honua a me ka mahiʻai i hana i ka pilikia o ka wai e hoʻonui nuiʻia ai, a laila e lilo ana kekahi mau kūlanakauhale hou i ka wai. ʻO ka wai wai wai i ka mea i koiʻia i kahi koiʻole i makemakeʻia no ka desleiter sonit. ʻO nā mea hoʻohana ponoʻoleʻo Membrane e hana ana ma kahi o ke kai ma lalo o ke kai a me nā model i hele mai i kaʻaoʻao o ke kai.

Wahi a ke kumu o ke aupuni o nā helu helu, ka huina o nā kumuwaiwai hou ma Kina, he 8% no ka pae o ka honua. Eia nō naʻe,ʻo ka mea nui o ka wai wai o Mipita, he 2,300 mau mika cubic,ʻo ia wale nō ka 1/35 o ka awelika wai wai, a aia he pōkole o nā wai wai wai. Me ka wikiwiki o kaʻoihana a me ka urbanization, he nui ka laulā o ka mea kūʻai aku ma muli o ka hana maʻamau o kaʻoihana a me nā hale kūʻai home. ʻO ka Despanation of Seawater e manaʻoʻia he ala nui no ka hoʻohuiʻana i ka wai inu kiʻekiʻe. Hoʻohana nā mea hoʻohana o Kina i nāʻoihanaʻoihana no 2/3 o ka huina. E like me Dekemaba 2015, nā papahana Dealtaters Sealing 139 ua kūkuluʻia he lāhui kanaka, me ka huina o ka 1,0265Million Tons / lā. Nā moʻokāki wai no ka 63.60%, a me nā waihona wai noho noho no 35.67%. ʻO ka hoʻohanaʻana i ka papa inoa no ka honua e lawelawe nei i ka wai noho (60%), a me ka waiʻoihana wale nō no 28%.

ʻO kahi pahuhopu koʻikoʻi o ka hoʻomohalaʻana o kaʻenehana derwater desility devital e hōʻemi i nā uku hana. I ka weheweheʻana o nā kumukūʻai hana, uila uila uila no ka helu nui loa no ka hapa nui loa. ʻO ka hōʻemiʻana i ka hoʻohanaʻana i ka o ka ikehu ka mea maikaʻi loa e hōʻemi i nā kumukūʻai deswater.