SYSTEM AND METHOD OF FILTERING USING STRATIFIED ACTIVATED CARBON

摘要

A stratified bed of activated carbon having regions of functionalized and non-functionalized activated carbon can be utilized to remove contaminants from fluids such as groundwater. The functionalized region has activated carbon particles comprising a cationic or anionic compound that can remove organic or inorganic anionic or cationic compounds from the fluid to be treated. The non-functionalized region comprises powdered or granular activated carbon or adsorbent media downstream of the functionalized region and captures any leaching species or compounds from the functionalized region.