In this paper factors influencing the thermal regeneration of carbon adsorbents were studied, namely ⅰ) the surface chemistry of the carbon adsorbent, ⅱ) the pH of the solution, ⅲ) the method of pH setting. All these factors were found to influence the surface area of the carbons recovered after the thermal treatment. Results from a predominantly microporous carbons (APET and APETOX) and from a commercial carbon (F400) designed for wastewater treatment were compared.1. Regenerated carbons exhibit different surface morphology from the initial ones. The modification in the morphology depends on the surface properties of the initial carbon and the aquatic medium of the loading solution.2. The initial properties are best conserved in case of the APETOX sample.3. The yield was between 78 and 88%, the yield was usually lowest in case of APETOX due to the elevated O-content. The yield also depends on the initial properties of the carbon and the aquatic medium of the loading solution.
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