CAJ | 학술논문

采用管式反应器，以铁屑和活性炭为填料，溶液吸收结合铁碳微电解反应处理废气中二氯甲烷（DCM）。实验对比了采用铁屑、活性炭和铁屑-活性炭（Fe-C）混合填料3种条件下对 DCM 的去除效果，表明采用 Fe-C混合填料的DCM去除率要高于单独采用铁屑或活性炭作为填料的情况，同时发现Fe-C体系组成的溶液的氧化还原电位（ORP）从反应开始急剧下降，与其他两种条件下有明显的区别；降低溶液初始pH能提高Fe-C体系DCM的脱氯和降解效果，在pH=1.5的条件下，Cl-生成率达最大为2.85%。通过气相色谱仪对反应进出口气体的分析，发现反应后产物主要为甲烷。
채용관식반응기，이철설화활성탄위전료，용액흡수결합철탄미전해반응처리폐기중이록갑완（DCM）。실험대비료채용철설、활성탄화철설-활성탄（Fe-C）혼합전료3충조건하대 DCM 적거제효과，표명채용 Fe-C혼합전료적DCM거제솔요고우단독채용철설혹활성탄작위전료적정황，동시발현Fe-C체계조성적용액적양화환원전위（ORP）종반응개시급극하강，여기타량충조건하유명현적구별；강저용액초시pH능제고Fe-C체계DCM적탈록화강해효과，재pH=1.5적조건하，Cl-생성솔체최대위2.85%。통과기상색보의대반응진출구기체적분석，발현반응후산물주요위갑완。
The removal of dichloromethane by absorption combined with iron-active carbon micro-electrolysis in a tube reactor filled respectively with iron mash, activate carbon particle and combined iron-active carbon (Fe-C), was investigated. The result shows that removal of DCM is higher for Fe-C mixed packing than for iron mash or activate carbon one. Oxidation Reduction Potential(ORP) of solution in the reactor filled with Fe-C mixed packing rapidly drops, which can create a more reducing environment at around 180 mV, while for other two fillers there is significant difference. It was also found that removal and dechlorination of DCM can be enhanced when pH of aqueous solution decreases. After 300 min the Cl-concentration in solution is about 4 times higher at pH 1.5 than at pH 5, and the maximum rate of Cl- generation is 2.85%. The gaseous product from dechlorination of dichloromethane by Fe-C is mainly methane.