Zero Valent Iron (ZVI) yog ib tug tsis ntawv thiab nrog tebchaws nyob rau hauv, cov no yog ib tug tsis ntawv thiab nrog tebchaws nyob rau hauv, ZVI yog tsis ntawv lub qhov kawg yuav tsum ua hauv chemical reduction, adsorption thiab co-precipitation. Suav los, ZV yog tsis ntawv thiab bioremediation los yuav tsum khw muaj tebchaws nyob rau hauv.