Degreaser sayensị ka ịghasa nkewa, tupu nzacha na condensing ụdị ezi filtration tertiary ọcha bụ organic dum, nwere ike dị irè na mgbakwunye na nke mmiri, mmanụ mwepụ, uzuzu nzacha, na-ebelata na-adị ọcha usoro nke abịakọrọ ikuku, mgbe ahụ site na post-processing nke ihe nzacha nkenke, nkenke nzacha nwere ike iru 0.1 um, mmanụ fọdụrụnụ nwere ike ịbụ ihe na-erughị 0.03 mg / Nm3, ịdị ọcha ikuku na-enweta nkwa a pụrụ ịdabere na ya.