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RECIPROCATING CONSTRUCTED WETLANDS FOR TREATING HIGH STRENGTH ANAEROBIC LAGOON WASTEWATER
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 113-123 in the Ninth International Animal, Agricultural and Food Processing Wastes Proceedings of the 12-15 October 2003 Symposium (Research Triangle Park, North Carolina USA), Publication Date 12 October 2003. 701P1203.(doi:10.13031/2013.15241)
Authors: L. Behrends, E. Bailey, W. Ellison, L. Houke, P. Jansen, C. Shea, S. Smith, and T. Yost
Keywords: Ammonia, CAFO, CBOD5, constructed wetlands, odor
Innovative wastewater treatment systems are needed for removing nutrients, noxious odors,
dissolved organic matter, and pathogens from high strength agricultural and processing
wastewater. A novel reciprocating subsurface-flow constructed wetland, consisting of four cells
totaling 3570 m2 (1.5 m deep), has been treating anaerobic lagoon wastewater from a
commercial-scale confined swine feeding operation since November, 2000. The system, located
near Aliceville, Alabama, has been monitored for twenty-one months. Hydraulic loading rates
(HLR), from the anaerobic lagoon to the wetlands treatment system averaged 107 and 208 m3/day
for years I and II respectively.