Abstract：The pulsed-SBR process was used to achieve the advanced nitrogen removal via nitrite pathway from landfill leachate. The effect of feed frequency on the process characteristic of pulse-SBR was discussed theoretically and nitrogen removal efficiency formula was established. The operation of the SBR under alternating aerobic-anoxic conditions was optimized by process control. The experimental results showed that up to 95.8% NH4+-N and 90.0% TN were eliminated via nitrite from leachate in the pulsed-SBR and advanced nitrogen removal was successfully obtained. The accurate on-line process control was main factor of the achievement and stabilization of partial biological nitrogen removal. With increasing feed frequency, the external carbon source dosage decreased obviously. Therefore, the objectives of saving external carbon source dosage and achieving advanced nitrogen removal were obtained when pulsed-SBR was used to treat landfill leachate.
孙洪伟, 尤永军, 彭永臻, 王淑莹. 脉冲式SBR处理垃圾渗滤液短程深度脱氮工艺特性[J]. 中国环境科学, 2014, 34(5): 1139-1144.
SUN Hong-Wei, YOU Yong-Jun, PENG Yong-Zhen, WANG Shu-Ying. The process characteristics of the pulsed-SBR for advanced nitrogen removal via nitrite pathway from landfill leachate. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(5): 1139-1144.
