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Using Tall Fescue to Remove Nutrients from Renovated Turkey Processing Wastewater

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  131583354,  2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131583354) @2013
Authors:   Jie Xu, Karen M. Mancl, Olli H. Tuovinen
Keywords:   Waste water treatment Grasses Nitrogen Phosphorus.

Abstract. The aim of this study was to use commercially valuable ornamental plants, such as tall fescue, for wastewater treatment without decreasing the overall treatment efficiencies of a laboratory-scale hydroponic system. The wastewater, from a turkey processing plant, was treated in a sand bioreactor system. Nitrate and phosphorus were measured in wastewater influent and effluent to evaluate the nutrient removal performance of the laboratory-scale hydroponic system. Tall fescue was cultured on media consisting of perforated plastic plates and one layer burlap. The plate/fabric/grass cells were tested at different hydraulic retention times. Two days of retention achieved 53% NO3--N removal and 68% PO43--P and was considered optimal for nutrient removal at 22-28 days of growth.

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