An array of inorganic removal systems is available from De Nora Water Technologies. The SORB 33 system removes arsenic to below 4 ppb in drinking systems, the SORB 09 system treats fluoride contamination in groundwater with capacities ranging from 100 to 3,000 gal per minute, the Omni-SORB filter removes iron and manganese, the SORB 07 system treats nitrate contamination in groundwater supplies and the TETRApHix system is ideal for use in drinking water applications requiring CO2 addition.