Department of Civil Engineering, University of British Columbia, Vancouver, BC, Canada.
J Environ Sci Health B. 2009 Aug;44(6):606-12. doi: 10.1080/03601230903000693.
The microwave enhanced advanced oxidation process (MW/H(2)O(2)-AOP) was used to treat separated solid dairy manure for nutrient release and solids reduction. The MW/H(2)O(2)-AOP was conducted at a microwave temperature of 120 degrees C for 10 minutes, and at three pH conditions of 3.5, 7.3 and 12. The hydrogen peroxide dosage at approximately 2 mL per 1% TS for a 30 mL sample was used in this study, reflecting a range of 0.53-0.75 g H(2)O(2)/g dry sludge. The results indicated that substantial quantities of nutrients could be released into the solution at pH of 3.5. However, at neutral and basic conditions only volatile fatty acids and soluble chemical oxygen demand could be released. The analyses on orthophosphate, soluble chemical oxygen demands and volatile fatty acids were re-examined for dairy manure. It was found that the orthophosphate concentration for untreated samples at a higher % total solids (TS) was suppressed and lesser than actual. To overcome this difficulty, the initial orthophosphate concentration had to be measured at 0.5% TS.
微波强化高级氧化工艺（MW/H2O2-AOP）用于处理分离的固态乳制品粪便以释放营养物质和减少固体含量。MW/H2O2-AOP 在 120°C 的微波温度下进行 10 分钟，并在 3.5、7.3 和 12 三个 pH 值条件下进行。本研究中使用了约每 1%TS 2 毫升的过氧化氢剂量，相当于 0.53-0.75 g H2O2/g 干污泥。结果表明，在 pH 值为 3.5 时，可以将大量营养物质释放到溶液中。然而，在中性和碱性条件下，只能释放挥发性脂肪酸和可溶性化学需氧量。对乳制品粪便进行了正磷酸盐、可溶性化学需氧量和挥发性脂肪酸的分析。发现未经处理的高总固体（TS）样品中的正磷酸盐浓度受到抑制，且低于实际值。为了克服这一困难，必须在 0.5%TS 下测量初始正磷酸盐浓度。
