하수 슬러지를 이용한 수은제거용 첨착 흡착제 제조

초록

Ocean dumping of sewage sludge has been prohibited since 2012. Therefore, various methods to recycle sewage sludge are studied And the adsorption is used to remove mercury released to the atmosphere. Chlorine and Iodine impregnated adsorbent is used to remove mercury in the flue gas. In our study, we studied the method to recycle sewage sludge and brewers grain as an adsorbent to remove mercury. Thermal treating time and temperature, and mixing ratio of sewage sludge and brewers grain are discussed for the preparation of adsorbent. According to the results, the optimal condition of temperature, time and mixing ratio was 400oC, 45 min and 7 : 3 of sewage sludge/brewers grain, respectively. The impregnation of I is needed to keep the concentration of KI above 7%. I and Cl are dispersed uniformly in prepared adsorbent.

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