Evaluation of Chemical and Thermal Regeneration of Activated Carbon

Chemical regeneration of granular activated carbon: preliminary evaluation of alternative regenerant solutions

“…At saturation, or earlier if the filtrate quality is unacceptable, the GAC operation can no longer continue, and regeneration is carried out; this is a more cost-effective option to lengthen the carbon life rather than disposal and carbon replacement. 2 The presence of problematic, weakly adsorbable pesticides, such as metaldehyde 3 and clopyralid 4 (in the U. K.), causes early GAC bed exhaustion for these compounds, requiring more frequent GAC regeneration. The most common regeneration technique practised is thermal regeneration.…”