A comparison of swine wastewater treatment using real-time and fixed-time two-stage sequencing batch reactors |
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Authors: | Lo Kwang Victor Cheuk William Wai Lun Tsai Ching-Tsan |
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Institution: | Department of Civil Engineering, University of British Columbia, Vancouver, British Columbia, Canada. kvlo@interchange.ubc.ca |
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Abstract: | This study compared the swine wastewater treatment of two identical lab-scale two-stage sequencing batch reactors (TSSBR) under similar conditions except that one was operated on a fixed-time mode and the other on a real-time mode. While both TSSBR systems performed very well, the real-time TSSBR performed far better then the fixed-time TSSBR, in every aspect of carbon, nitrogen, and phosphorous removal. The removals of COD, TOC, were at 97% and for BOD5 even at 99.7%. In terms of NH4-N and TKN removals, the real-time TSSBR achieved removal of over 98%. For phosphorus removals (Ortho-P and total P) the results from the real-time TSSBR was quite remarkable at 97.7%. |
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