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Advanced treatment of swine wastewater by electrodialysis with a tubular ion exchange membrane
Author(s) -
FUKUMOTO Yasuyuki,
HAGA Kiyonori
Publication year - 2004
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/j.1740-0929.2004.00216.x
Subject(s) - electrodialysis , wastewater , chemistry , sewage treatment , activated sludge , pulp and paper industry , phosphorus , chromatography , nitrogen , ion exchange , waste management , membrane , environmental engineering , environmental science , ion , engineering , biochemistry , organic chemistry
To remove the excess nitrogen and phosphorus in swine wastewater, an electrodialysis technique was applied to an advanced treatment method. The laboratory‐scale swine wastewater treatment system constructed for the present study consisted of an activated sludge process, as the main treatment unit, and electrodialysis, as an advanced treatment unit. This system was operated for 200 days and the processing performance was evaluated. By electrodialysis, approximately 99% of NO 3 – and PO 4 3– in the activated sludge‐treated water (AT solution) was removed during operation. Furthermore, electrodialysis decreased the color density of the AT solution at a rate of 58%. The advanced treatment of swine wastewater by electrodialysis proved to be an efficient technique to remove excess nitrogen and phosphorus, and decrease color density.