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http://dx.doi.org/10.4491/KSEE.2013.35.6.407

Livestock Wastewater Treatment Using MBR/NF/RO and Application of Post-Denitrification and Air Flotation Process to Treat Excess Sludge and NF/RO Brine  

Na, Yumee (Coway)
Bae, Jongbok (Saehan Entech)
Moon, Taehun (Coway)
Hwang, Yunyoung (Coway)
Lee, Yangwoo (Coway)
Publication Information
Abstract
Full scale livestock wastewater treatment plant (100 t/d) was constructed and operated to develop compact and cost effective treatment process for public plant as well as individual farm. Liquid form of livestock wastewater after belt press filter was treated through MBR/NF/RO. NF/RO brine water was mixed with livestock wastewater sludge and treated using denitrification, coagulation and air flotation process. Mixed effluent of NF/RO and air flotation meet public livestock wastewater treatment standard, BOD, T-N and T-P, 30 mg/L, 60 mg/L, 8 mg/L below, respectively. Condensed sludge of air flotation returned belt press filter. Dewatered cake contained 90% water and could be used fertilizer after mixing sawdust.
Keywords
Livestock Wastewater Treatment; MBR; NF; RO; Post-Denitrification; Air Flotation; Sludge Treatment RO Brine Water Treatment;
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