Zero Valent Hlau (ZVI) yog cov khoom siv ntsuab & eco-phooj ywg, uas tuaj yeem siv los ua tus neeg sawv cev txo qis hauv cov txheej txheem kho ib puag ncig. ZVI tuaj yeem tshem tawm ntau yam kab mob los ntawm kev txo cov tshuaj lom neeg, adsorption thiab co-ua nag lossis daus. Tsis tas li ntawd, ZV tuaj yeem ua ke nrog bioremediation los txhim kho kev kho kom zoo.