Hwang, I S Resource recovery and nitrogen removal from piggery waste using the combined anaerobic processes. [electronic resource] - Water science and technology : a journal of the International Association on Water Pollution Research 2006 - 229-36 p. digital Publication Type: Journal Article ISSN: 0273-1223 Standard No.: 10.2166/wst.2006.859 doi Subjects--Topical Terms: AnimalsBacteria, Anaerobic--metabolismBioreactorsFood IndustryHydrolysisIndustrial WasteKoreaMethane--metabolismNitrogen--isolation & purificationPhosphorus--isolation & purificationSwineWaste Disposal, Fluid--methods