Srinivasan Asha, Liao Ping H, Lo Kwang V
a Department of Civil Engineering , University of British Columbia , Vancouver , British Columbia , Canada.
J Environ Sci Health B. 2016 Dec;51(12):840-846. doi: 10.1080/03601234.2016.1208464. Epub 2016 Aug 5.
A newly designed continuous-flow 915 MHz microwave wastewater treatment system was used to demonstrate the effectiveness of the microwave enhanced advanced oxidation process (MW/HO-AOP) for treating dairy manure. After the treatment, about 84% of total phosphorus and 45% of total chemical oxygen demand were solubilized with the highest HO dosage (0.4% HO per %TS). The reaction kinetics of soluble chemical oxygen demand revealed activation energy to be in the range of 5-22 kJ mole. The energy required by the processes was approximately 0.16 kWh per liter of dairy manure heated. A higher HO dosage used in the system had a better process performance in terms of solids solubilization, reaction kinetics, and energy consumption. Cost-benefit analysis for a farm-scale MW/HO-AOP treatment system was also presented. The results obtained from this study would provide the basic knowledge for designing an effective farm-scale dairy manure treatment system.
