Department of Civil Engineering, University of British Columbia, Vancouver, BC, Canada.
J Environ Sci Health B. 2010 Nov;45(8):804-9. doi: 10.1080/03601234.2010.515474.
The microwave enhanced advanced oxidation process (MW/H(2)O(2)-AOP) was used to treat dairy manure for solubilization of nutrients and organic matters. This study investigated the effectiveness of the MW/H(2)O(2)-AOP under a continuous mode of operation, and compared the results to those of batch operations. The main factors affecting solubilization by the MW/H(2)O(2)-AOP were heating temperature and hydrogen peroxide dosage. Soluble chemical oxygen demand (SCOD) and volatile fatty acids (VFA) increased with an increase of microwave (MW) heating temperature; very high concentrations were obtained at 90°C. Insignificant amounts of ammonia and reducing sugars were released in all runs. An acidic pH condition was required for phosphorus solubilisation from dairy manure. The best yield was obtained at 90°C with an acid dosage of 1.0 %; about 92 % of total phosphorus and 90 % of total chemical oxygen demand were in the soluble forms. The MW/H(2)O(2)-AOP operated in a continuous operation mode showed pronounced synergistic effects between hydrogen peroxide and microwave irradiation when compared to a batch system under similar operating conditions, resulting in much better yields.
微波增强高级氧化工艺（MW/H₂O₂-AOP）用于处理奶牛粪便以溶解营养物质和有机物。本研究在连续操作模式下研究了 MW/H₂O₂-AOP 的有效性，并将结果与分批操作进行了比较。影响 MW/H₂O₂-AOP 溶解的主要因素是加热温度和过氧化氢用量。随着微波（MW）加热温度的升高，可溶解化学需氧量（SCOD）和挥发性脂肪酸（VFA）增加；在 90°C 时获得了非常高的浓度。在所有运行中，氨和还原糖的释放量都很少。从奶牛粪便中溶解磷需要酸性 pH 值条件。在 90°C 下，酸用量为 1.0%时，获得最佳产率；约 92%的总磷和 90%的总化学需氧量以可溶形式存在。与类似操作条件下的分批系统相比，MW/H₂O₂-AOP 在连续操作模式下表现出过氧化氢和微波辐射之间明显的协同作用，从而产生更好的产率。
