Bioregeneration of spent mercury bearing sulfur-impregnated activated carbon adsorbent
作者： Shen-Yi Chen , Hsing-Cheng Hsi , Min-Yu Shih
DOI: 10.1007/S11356-017-9321-X
关键词:
摘要: Among various adsorbents studied, sulfur-impregnated activated carbon is one of the most promising for mercury removal from flue gas. However, a large amount spent carbons containing high content are generated after adsorption. To make adsorption more viable option, regeneration and reuse should be considered. The purpose this study to develop novel technique bioregeneration gases by sulfur-oxidizing bacteria. optimal operating parameters process were studied using central composite design (CCD) response surface methodology (RSM). Results showed that sulfur oxidation rate was increased with increasing dosage. Furthermore, increase inoculum size only caused slight in bioregeneration. maximum efficiency than 50% obtained at 10% (w/v) dosage 20% (v/v) size. After process, Brunauer-Emmett-Teller (BET) area micropore volume due bio-oxidation bearing on carbons.
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