【摘要】 研究了腐植酸溶液超声声化学降解过程中近紫外光谱在190-320 nm间的变化,证明超声波对腐植酸有明显的降解作用,并测定了降解过程中不同pH值条件下TOC的变化,对降解过程的自由基氧化历程进行了分析。更多还原

【Abstract】 The changes of ultraviolet spectra in the range of 190-320 nm of the humic acid sonochemical degradation process were studied. The experimental results show that the ultrasound has a high degradability to humic acid. The TOC removel rates in different pH ranges were 896-15%. In the low pH condition, the TOC removel rate is low, however, in the high pH condition, the TOC removel rate is higher. Futhermore, the free radical oxidation process was analyzed.更多还原