2016
DOI: 10.30638/eemj.2016.247
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Pilot Field Demonstration of Woodchip Biofilters in the Treatment of Separated Pig Manure Digestate

Abstract: Three pilot-scale biofilters consisting of 1 m aerobic woodchip layers and 0.5 m submerged woodchip layers were constructed to treat the separated pig manure anaerobic digestate (SAD). Reductions of 54% dry matter, 80% of chemical oxygen demand (COD), 93% of 5-day biochemical oxygen demand (BOD5), 86% of total nitrogen (TN) and 79% of total phosphorus (TP) were achieved. The study results confirm the occurrence of nitrification in the aerobic woodchip layers and denitrification in the submerged layers. The woo… Show more

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