CAJ | 학술논문

采用微波无极灯(MEDL)光解甲硫醚气体，结果表明，随着进气浓度的增加，甲硫醚去除率相应降低，但其绝对处理量却相应增加；停留时间越长，去除率越大，停留时间为10 s时，降解率高达94.3%。微波无极光化学反应系统中主要产生直接光解、光诱导产生的激发态氧原子 O(1D)和羟基自由基的氧化作用，可将甲硫醚降解转化为硫酸盐、二氧化碳和水等无机化合物，其中激发态氧原子O(1D)的含量是影响甲硫醚降解的关键因素。
채용미파무겁등(MEDL)광해갑류미기체，결과표명，수착진기농도적증가，갑류미거제솔상응강저，단기절대처리량각상응증가；정류시간월장，거제솔월대，정류시간위10 s시，강해솔고체94.3%。미파무겁광화학반응계통중주요산생직접광해、광유도산생적격발태양원자 O(1D)화간기자유기적양화작용，가장갑류미강해전화위류산염、이양화탄화수등무궤화합물，기중격발태양원자O(1D)적함량시영향갑류미강해적관건인소。
Photolysis of dimethyl sulfide (DMS) by microwave electrodeless discharge lamp (MEDL) was conducted in this study. Removal efficiency decreased with increasing inlet concentration of DMS, but could be increased to 94.3% while residence time of DMS in the photo-reactor was kept at 10 s. Direct photolysis and indirect photo-oxidation by excited states of atomic oxygen O(1D) and radical·OH were regarded as the contribution to DMS degradation in MEDL, especially, O(1D) played the key role of oxidative species in mineralizing DMS to inorganic chemicals, such as SO42-, CO2 and H2O.