Igwe dị arọ na-ewepụ ihe nnọchi anya CW-15 bụ ihe na-ejide ọla dị arọ na-adịghị egbu egbu na gburugburu ebe obibi. Kemịkalụ a nwere ike ịmepụta ngwakọta kwụsiri ike nke nwere ọtụtụ ion metal monovalent na divalent n'ime mmiri mkpofu, dị ka: Fe2+, Ni2+, Pb2+, Cu2+, Ag+, Zn2+, Cd2+, Hg2+,Ti+ na Cr3+, wee rute ebumnuche iwepụ hea. ..
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