Enwere ike iji microfiltration, ultrafiltration, nanofiltration na reverse osmosis membrane ọcha dochie igwe nnwale nkewa akpụkpọ ahụ nke nwere ọkwa atọ.Ọ nwere ike na-aghọta otu-ogbo filtration ma ọ bụ atọ-ogbo na-aga n'ihu imekotaotuugbo filtration;N'otu oge ahụ, ultrafiltration na nanofiltration akpụkpọ ahụ nwere ike ịmalite n'otu oge iji mezue nkọwa na nzacha nke ngwaahịa ngwọta, graded ultrafiltration, nanofiltration itinye uche desalination, dealcoholization, reverse osmosis uche.A na-anakọta ihe ngwọta ngwaahịa na ngalaba dịka ịdị arọ nke molekụla n'ime otu oge ahụ, na usoro dum na-aga n'ihu ma na-achịkwa ya.