Performance report on the operations of a pilot plant for the treatment of vanadium in ground water—New Rifle UMTRA Site, Rifle, Colorado, USA

Abstract

A pilot study conducted at the former uranium- and vanadium-processing site located west of Rifle, Colorado, USA, investigated the feasibility of using an ex situ zero-valent iron (ZVI) through-medium process to reduce vanadium concns. in the groundwater to levels that will naturally flush within the 100-yr period allowable by the stds. Prototype testing, consisting of lab. treatability studies followed by bench-scale field studies, provided performance data and design parameters required to scale up to higher flow rates for groundwater remediation. The process was successful in removing vanadium from the groundwater to below 0.33 mg/L while also meeting all other chem. cleanup goals.