Höganäs AB has opened a new facility in Cary, N.C., that aims to improve water purification and soil remediation techniques. Höganäs has developed proprietary technology that uses highly porous iron particles to remove contaminants such as heavy metals from water and soil. This process has been shown to help rid groundwater and drinking water of contaminants like hexavalent chromium, arsenic, selenium, phosphates and radioactive isotopes.