Effect of Step Feed on Denitrifying Phosphorus and Nitrate Removal in a Modification of the Two Sludge A 2 /O-BAF System

• Published in: Huanjing kexue Vol. 39; no. 4; p. 1704
• Main Authors: Nan, Yan-Bin, Peng, Yong-Zhen, Zeng, Li-Yun, Zhao, Zhi-Chao, Liu, Hong, Li, Hui, Chen, Yong-Zhi
• Format: Journal Article
• Language: Chinese
• Published: China 08.04.2018
• Subjects: Bioreactors - microbiology; Denitrification; Nitrates - isolation & purification; Nitrogen; Phosphorus - chemistry; Sewage; Waste Disposal, Fluid - methods; denitrifying phosphorus and nitrate removal; low C/N; ratio of step feed; material balance; utilization of carbon sources

A modification of the two sludge A /O-BAF system was used to treat low C/N real domestic sewage. In order to improve the utilization of the carbon source, the effects of two step feeds (pre-anoxic zone and anoxic zone) on denitrifying phosphorus and nitrate removal were studied. According to the for...