decontaminate

/ˌdiː.kənˈtæm.ə.neɪt/

动词

去除…的污染，清除（有害物质）；净化
Estimates of the amount of money needed to decontaminate the heavily polluted chemical installations vary.
对受重污染的化工设施进行净化预计需要多少资金说法不一。