Bogazici University, Institute of Environmental Sciences, Bebek, 34342 Istanbul, Turkey.
Bioresour Technol. 2013 Oct;146:126-134. doi: 10.1016/j.biortech.2013.07.043. Epub 2013 Jul 19.
Microwave-assisted hydrogen peroxide (MW/H2O2) treatment and microwave-assisted persulfate (MW/S2O8(2-)) treatment of biological waste sludge were compared in terms of simultaneous antibiotic degradation and sludge solubilization. A 2(3) full factorial design was utilized to evaluate the influences of temperature, oxidant dose, and holding time on the efficiency of these processes. Although both MW/H2O2 and MW/S2O8(2-) yielded ≥97% antibiotic degradation with 1.2g H2O2 and 0.87 g S2O8(2-) per gram total solids, respectively, at 160 °C in 15 min, MW/S2O8(2-) was found to be more promising for efficient sludge treatment at a lower temperature and a lower oxidant dosage, as it allows more effective activation of persulfate to produce the SO4(-) radical. Relative to MW/H2O2, MW/S2O8(2-) gives 48% more overall metal solubilization, twofold higher improvement in dewaterability, and the oxidation of solubilized ammonia to nitrate in a shorter treatment period.
微波辅助过氧化氢（MW/H2O2）处理和微波辅助过硫酸盐（MW/S2O8(2-））处理生物剩余污泥在同时降解抗生素和污泥溶解方面进行了比较。采用 2(3）完全析因设计来评估温度、氧化剂剂量和保持时间对这些过程效率的影响。尽管 MW/H2O2 和 MW/S2O8(2-)分别在 160°C 下 15 分钟内用 1.2g H2O2 和 0.87 g S2O8(2-)处理每克总固体物时，均能达到≥97%的抗生素降解率，但在较低温度和较低氧化剂剂量下，MW/S2O8(2-)更有利于有效处理污泥，因为它可以更有效地激活过硫酸盐以产生 SO4(-)自由基。与 MW/H2O2 相比，MW/S2O8(2-)可使总金属溶解增加 48%，脱水性能提高一倍，在较短的处理时间内将溶解的氨氧化为硝酸盐。
