UI engineers find switchgrass removes PCBs from soils
Ames IO (SPX) Feb 19, 2015 - University of Iowa researchers have found a type of grass that was once a staple of the American prairie can remove soil laden with PCBs, toxic chemicals once used for cooling and other industrial purposes. The researchers report that switchgrass successfully removed up to 40 percent of the PCBs from contaminated soils in lab experiments. When boosted by a PCB-oxidizing microorganism, the ... more

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