Inhibition of nitrification of ammonia-rich wastewater in immobilized nitrifiers system

摘要：

Inhibition of ammonia oxidation and nitrite oxidation was studied in an immobilized biomass system. Ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) suffered different inhibition in ammonia-rich wastewater. NOB started to be inhibited when FA (free ammonia) was 2mg/L, and was totally inhibited when FA was 8mg/L. AOB started to be inhibited when FA was 22mg/L, and tended to lose activity when FA was higher than 170mg/L. Inhibition kinetics of ammonia oxidation and nitrite oxidation could be described by Haldane model. Immobilization alleviated inhibition of FA to nitrifiers, maintaining high activity even at high strength ammonia solution. Partial nitrification could be achieved by varying degrees of inhibition of FA to AOB and NOB.

作者: LI Zhirong ZHANG Zhi ZHANG Zhenjia

作者单位: School of Environmental Science & Engineering, Shanghai Jiaotong University, Shanghai, China,200240 School of Environmental Science & Engineering, Shanghai Jiaotong University,Shanghai, China,200240

会议类型: 国际会议

会议名称: 2011 International Conference on Environmental Biotechnology and Materials Engineering(2011年环境生物技术与材料工程国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 197-200

在线出版日期: 2011-03-26（万方平台首次上网日期，不代表论文的发表时间）