Application of Sponge Iron in Permeable Reactive Barriers for Groundwater Remediation

Date and Time:  Wednesday, January 16, 2019 2:00 PM - 3:00 PM EDT

Presenter:  Dr. Yu Yang

Höganäs Environment Solutions, LLC., 3000 Weston Parkway, Cary, NC, 27513, USA


A new type of sponge iron, namely Cleanit® SR media, is specifically engineered for permeable reactive barrier (PRB) applications for groundwater remediation. Sponge iron is manufactured from iron ore, with an iron content >98% (w/w). In terms of TCE removal, batch studies have shown that sponge iron has 10-20% faster removal rate than that of the regrinded iron.  An additional column test was set up to simulate selenate removal in PRB applications. Sponge iron had approximately 97-98% of selenate removal efficiencies, with an influent selenium concentration of 2,200 µg/L and a retention time of 4.4 h. In summary, sponge iron media demonstrated significant benefits for chlorinated solvent and selenium removal in groundwater remediation.


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Event Properties

Event Date 01-16-2019
Event End Date 01-16-2019
Registration Start Date 01-03-2019