New elu-ike laser ihicha igwe, na-abụghị abrasive, na-abụghị kọntaktị e ji mara, ọ bụghị nanị na a pụrụ iji hichaa organic pollutants, nwekwara ike-eji na-ehicha inorganic bekee, gụnyere metal nchara, metal ahụ, uzuzu, wdg Ngwa arụmọrụ. na-agụnye: iwepụ nchara, iwepụ agba, mwepụ mmanụ, mweghachi ihe nketa, wepụ gluu, wepụ mkpuchi, wepụ ihe mkpuchi.