The design and operation of Yongin feces and livestock wastewater complex treatment system in Korea

The feces and livestock wastewater is characterized with complicated and high level in pollutant and foul odor, great change with loading. Humus activated sludge process with anaerobic-intermittent aeration mode were adopted to treat feces and livestock wastewater complex. The design and operation result showed that the process could remove effectively high concentration organic matter, TN,TP and SS, no foul gas release in residual sludge and during operation, the system has strong tolerance to the high hydraulic load through adjusting aeration period and reflux ratio. The feces and livestock treatment in China can draw lessons from the Yongin feces and livestock wastewater complex treatment system in Korea.