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ARS Home » Southeast Area » Florence, South Carolina » Coastal Plain Soil, Water and Plant Conservation Research » Research » Publications at this Location » Publication #359795
Research Project: Improvement of Soil Management Practices and Manure Treatment/Handling Systems of the Southern Coastal Plain

Location: Coastal Plain Soil, Water and Plant Conservation Research

Title: Recovery of phospates from swine lagoon sludge using quick wash process and geotextile filtration

Author
item Szogi, Ariel
item Vanotti, Matias
item Shumaker, Paul

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 2/28/2019
Publication Date: 5/7/2019
Citation: Szogi, A.A., Vanotti, M.B., Shumaker, P.D. 2019. Recovery of phospates from swine lagoon sludge using quick wash process and geotextile filtration. In: Proceedings of the SIGERA VI International Symposium on Management of Agricultural and Agroindustrial Residues, May 7-9, 2019, Florianopolis, Brazil. p.226-228. Available: http://sbera.org.br/pt/wp-content/uploads/2019/05/sigera_vi_anais_2019_final.pdf

Interpretive Summary: A widespread, low-cost method of dewatering anaerobic swine lagoon sludge in U.S. farms is the use of geotextile bag filtration. Because of typically high phosphorus (P) contents in lagoon sludge, the dewatered sludge is eventually hauled to distant fields to reduce the environmental risk of excess P in land nearby the lagoon. The inclusion of a P recovery approach, called “Quick Wash” (QW), along with the geotextile bags could eliminate or reduce hauling costs of dewatered sludge and produce a nitrogen-rich organic soil amendment and a valuable recovered P product for use as fertilizer. The QW process uses a novel combination of acid, base, and organic polyelectrolytes to selectively extract and recover P from manure solids. The objective of this study was to evaluate the potential advantage and technical feasibility of combining the QW process and geotextile dewatering in a system to extract and recover P from lagoon sludge.

Technical Abstract: A widespread, low-cost method of dewatering anaerobic swine lagoon sludge in U.S. farms is the use of geotextile bag filtration. Because of typically high phosphorus (P) contents in lagoon sludge, the dewatered sludge is eventually hauled to distant fields to reduce the environmental risk of excess P in land nearby the lagoon. The inclusion of a P recovery approach, called “Quick Wash” (QW), along with the geotextile bags could eliminate or reduce hauling costs of dewatered sludge and produce a nitrogen-rich organic soil amendment and a valuable recovered P product for use as fertilizer. The QW process uses a novel combination of acid, base, and organic polyelectrolytes to selectively extract and recover P from manure solids. The objective of this study was to evaluate the potential advantage and technical feasibility of combining the QW process and geotextile dewatering in a system to extract and recover P from lagoon sludge.