Effect of zinc on anammox activity and performance of simultaneous partial nitrification, anammox and denitrification (SNAD) process

Achlesh Daverey, Yi Chian Chen, Shihwu Sung, Jih-Gaw Lin*

*此作品的通信作者

研究成果: Article同行評審

65 引文 斯高帕斯(Scopus)

摘要

In the present study, short-term effects of zinc on anammox activities and long-term effect of zinc on the performance of simultaneous partial nitrification, anammox and denitrification (SNAD) process were evaluated. The anammox activity decreased with increasing zinc concentration and exposure time in short-term tests. The IC50 value of zinc was found to be 6.9mg/L. However, the presence of zinc (<10mg/L) in wastewater stimulated the microbial activities and nitrogen removal performance of SNAD process in sequencing batch biofilm reactor (SBBR). At first, inhibition of SNAD process was observed when influent zinc concentration increased to 20mg/L. The system recovered immediately, suggesting the acclimatization of microbial communities of SNAD process. The results showed that SBBR was well acclimatized under high zinc concentration (50-100mg/L) achieving 98% NH4 +-N, 96% TN and 87% COD removal efficiencies.

原文English
頁(從 - 到)105-110
頁數6
期刊Bioresource Technology
165
發行號C
DOIs
出版狀態Published - 1 1月 2014

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