CAJ | 학술논문

在 N2气氛下，对空干基污泥进行了低温热解实验，共检测到5种含硫气体，分别是 H2S、SO2、CS2、COS和CH3SH，其中H2S、SO2及CH3SH是主要成分。通过XPS测定污泥样品和焦中各形态硫的变化，发现热解温度低于350,℃时，主要是脂肪族硫分解，其他形态硫变化不大。在此基础上，向污泥中添加了两种脂肪族有机硫，以研究脂肪族硫对含硫气体释放的影响，添加后，发现 H2S 的释放量剧烈增大，SO2和 CH3SH 的增加量相对较少，同时H2S释放量的增加促进了COS和CS2的生成。
재 N2기분하，대공간기오니진행료저온열해실험，공검측도5충함류기체，분별시 H2S、SO2、CS2、COS화CH3SH，기중H2S、SO2급CH3SH시주요성분。통과XPS측정오니양품화초중각형태류적변화，발현열해온도저우350,℃시，주요시지방족류분해，기타형태류변화불대。재차기출상，향오니중첨가료량충지방족유궤류，이연구지방족류대함류기체석방적영향，첨가후，발현 H2S 적석방량극렬증대，SO2화 CH3SH 적증가량상대교소，동시H2S석방량적증가촉진료COS화CS2적생성。
The emission characteristics of sulfur-containing gases during low temperature pyrolysis of sewage sludge were studied in N2 atmosphere. Five sulfur-containing gases,H2S,SO2,CS2,COS and CH3SH,were detected, with H2S,SO2 and CH3SH as the main ingredients. The sulfur in raw sludge and chars was quantitatively analyzed using X-ray photoelectron spectroscopy(XPS). It was shown that there was a large decline in the level of aliphatic sulfur after pyrolysis,while the other sulfur forms in the chars remained almost unchanged. Therefore,two kinds of aliphatic sulfur were added to the sludge,aiming to study their impacts on the release of sulfur-containing gases. The results indicated a significant increase in the emission of H2S but a relatively small increase of SO2 and CH3SH. It was also indicated that the increase of H2S promotes the formation of COS and CS2.