Bioresource Technology 214 (2016) 284–291 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Nitrogen removal from wastewater and external waste activated sludge reutilization/reduction by simultaneous sludge fermentation, denitriﬁcation and anammox (SFDA) Bo Wang, Yongzhen Peng , Yuanyuan Guo, Mengyue Zhao, Shuying Wang Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China highlights graphical a bstract Simultaneous sludge fermentation, denitriﬁcation and anammox was demonstrated. Long-term stable operation was observed with domestic wastewater as inﬂuent. Efﬁcient nitrogen removal was achieved by synergy of anammox and denitriﬁcation. Accidental introduction of air into the system only caused limited negative effect. External WAS reutilization promoted nitrogen removal and realized sludge reduction. ar ti c l e i nf o ab stra ct Article history: This work demonstrates the feasibility of simultaneous nitrogen removal and external waste activated Received 23 January 2016 sludge (WAS) reutilization/reduction by using the synergy of sludge fermentation, denitriﬁcation and Received in revised form 10 April 2016 anammox processes in up-ﬂow reactors (SFDA). Pre-treated domestic wastewater and synthetic wastew- Accepted 16 April 2016 ater (containing nitrite 20 mg/L, ammonium 10 mg/L in
Bioresource Technology – Elsevier
Published: Aug 1, 2016
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