The development of a reverse anammox sequencing partial nitrification process for simultaneous nitrogen and COD removal from wastewater

详细信息    查看全文

• 作者：Xiaochen Xu^a ; ¹ ; ^{wanggw@dlpu.edu.cn" class="auth_mail} ; Yuan Xue^b ; Dong Wang^a ; Guowen Wang^c ; ¹ ; Fenglin Yang^a
• 关键词：Simultaneous nitrogen and COD removal ; Anammox ; Partial nitrification ; MBR
• 刊名：Bioresource Technology
• 出版年：March, 2014
• 年：2014
• 卷：155
• 期：Complete
• 页码：427-431
• 全文大小：1064 K

文摘

In order to achieve simultaneous removal of nitrogenous and organic pollutants, a novel reverse anammox-partial nitrification nitrogen removal process was developed. During steady operation, the maximum nitrogen and COD (chemical oxygen demand) removal efficiencies were over 90%, with influent -N and COD concentrations of 300 and 100 mg L^鈭?. The optimum recycle ratio of Membrane bioreactor (MBR for partial nitrification) and fixed bed reactor (anammox) for this process was recommended as 3 due to increasingly larger recycle ratio caused slight increase in TN (total nitrogen) removal efficiency. Additionally, the steady nitrogen removal rate was obtained at 0.92-1.03 kg N m^鈭? day^鈭?. Considering its great potential in nitrogen removal, this reverse process will be revealing for the study of anammox technique.