Zhang Shao-hui, Zheng Ping, Hua Yu-mei
Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China.
J Environ Sci (China). 2005;17(6):1030-3.
Anaerobic ammonia oxidation(Anammox) process is a novel and promising wastewater nitrogen removal process. The feasibility of transition of Anammox from denitrification and the performance of lab-scale Anammox biofilm reactor were investigated with sludge dewatering effluent. The results showed that Anammox process could be successfully started up after cultivation of denitrification biofilm and using it as inoculum. The transition of Anammox from denitrification was accomplished within 85 d. Anammox process was found suitable to remove ammonia from sludge dewatering effluent. The effluent ammonia concentration was detected to be 23.11 mgN/L at HRT of 28 h when influent ammonia concentration was fed 245 mgN/L, which was less than that for the national discharge standard II (25 mgN/L) of China. Volumetric total nitrogen loading rate was up to 584.99 mg TN/(L x d) at HRT of 17 h, while influent concentrations were kept 243.25 mg NH4(+) -N/L and 288.31 mg NO2(-) -N/L.
厌氧氨氧化（Anammox）工艺是一种新型且有前景的废水脱氮工艺。利用污泥脱水出水，研究了Anammox从反硝化转变的可行性以及实验室规模Anammox生物膜反应器的性能。结果表明，在培养反硝化生物膜并将其用作接种物后，Anammox工艺能够成功启动。Anammox从反硝化的转变在85天内完成。发现Anammox工艺适合从污泥脱水出水中去除氨。当进水氨浓度为245 mgN/L，水力停留时间（HRT）为28小时时，检测到出水氨浓度为23.11 mgN/L，低于中国国家二级排放标准（25 mgN/L）。当HRT为17小时，进水浓度保持在243.25 mg NH4(+) -N/L和288.31 mg NO2(-) -N/L时，容积总氮负荷率高达584.99 mg TN/(L·d)。
