a Department of Civil Engineering , University of British Columbia , Vancouver , British Columbia , Canada.
J Environ Sci Health B. 2018;53(12):824-830. doi: 10.1080/03601234.2018.1505084. Epub 2018 Sep 10.
The microwave enhanced advanced oxidation process (MW-AOP) was used to treat dairy manure in a continuous-flow 915 MHz microwave wastewater treatment system. The treatment efficiency increased with an increase in temperature, as well as hydrogen peroxide dosage. The settling property was also improved in all treated sets, regardless of temperature applied. The system operated at temperatures >100 °C had a much higher soluble chemical oxygen demand than at temperatures <100 °C. The highest soluble carbonaceous compounds, orthophosphate and ammonia were obtained at 110 °C and 0.6%HO per % of total solids content. The process should be operated at higher temperatures and higher hydrogen peroxide dosages for maximizing solids disintegration, nutrient release and energy efficiency. An energy fingerprint correlating the cumulative energy consumption and temperature rise was developed. The results demonstrated that the custom designed MW-AOP system is suitable for the effective treatment of dairy manure. The system can readily be scaled up and integrated into a dairy farm manure treatment and resource recovery system.
微波强化高级氧化工艺 (MW-AOP) 被用于在 915MHz 微波废水处理系统中连续处理奶牛粪便。处理效率随温度和过氧化氢剂量的增加而提高。无论应用的温度如何，所有处理组的沉降性能都得到了改善。在温度高于 100°C 的系统中，可溶性化学需氧量比温度低于 100°C 的系统高得多。在 110°C 和 0.6%HO 每总固体含量的 %下，获得了最高的可溶性含碳化合物、正磷酸盐和氨。为了最大限度地实现固体分解、养分释放和能源效率，该工艺应在较高的温度和较高的过氧化氢剂量下运行。开发了一个与累积能耗和温升相关的能量指纹。结果表明，定制设计的 MW-AOP 系统适用于有效处理奶牛粪便。该系统可以很容易地扩大规模，并集成到奶牛场粪便处理和资源回收系统中。
