| http://www.w3.org/ns/prov#value | - ???Adsorbent??? or ???adsorbent materials??? as used herein means one or more of granular activated carbon, including granular activated carbon that has been treated to provide affinity to predetermined chemical species, metals or other compounds found to be present in the wastewater that is to be treated; granular iron-based compounds, e.g., iron oxide composites; synthetic resins; and granular a
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