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ISSN : 1225-0112(Print)
ISSN : 2288-4505(Online)
Applied Chemistry for Engineering Vol.20 No.1 pp.109-115
DOI :

Note : Development of a Carbonization Activator

Dong Hyun Jung

Abstract

The purposes of this study are to treat sewage sludge that has increasingly become an issue and to recycle it as the adsorbent. The adsorbent was produced by carbonization and simultaneous steam activation, and its characteristics were studied. Parametric screening studies were carried out for the preparation of good adsorbent. Optimum operating conditions were confirmed as input carbonization-activated temperature of 840 ℃, feed steam flow rate of 70 g/min, carbonization-activated time of 30 min and feed dried sludge of 10.8 ㎏/day, respectively. At this time, the iodine adsorptivity was maximized as 328.1 ㎎/g. Pore development, structure, element compound and content were confirmed by using nanoPOROSITY, SEM (Scanning electron microscope), and EDS (Energy dispersive spectroscopy). Through this result, it was known that the adsorbent derived from sewage sludge could be used for the treatment of leachate in a landfill, VOCs (Volatile organic compounds), and so on.

단신 : 하수슬러지 활성탄화로 개발

정동현,임문섭

초록

본 연구는 현재 크게 문제가 되고 있는 하수슬러지를 처리하고 흡착제로 재활용하기 위해 탄화와 수증기 활성화를 동시에 진행시켜 하수슬러지 흡착제를 제조하고 흡착특성을 파악하였다. 양질의 흡착제를 제조하기 위해 변수별 연구를 진행하였고, 그 결과 최적 탄화 수증기활성화 조건은 유입 탄화활성화 온도 840 ℃, 수증기량 70 g/min, 탄화활성화 시간 30 min, 건조슬러지 주입량 10.8 ㎏/d로 결정되었다. 이때 요오드 흡착능은 328.1 ㎎/g으로 나타났다. nanoPOROSITY, FE-SEM, EDS를 이용하여 각각의 세공 발달과 구조, 원소성분 및 함량을 확인하였다. 이를 통해 하수슬러지 흡착제의 경우 매립장 침출수 흡착제, VOCs 처리용 흡착제 등의 사용이 가능함을 확인할 수 있었다.

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