高氨氮制药废水短程生物脱氮
CIESC Journal
• 生物化学工程、制药、食品和天然产物加工 • 上一篇 下一篇
李勇智;彭永臻;王淑滢
哈尔滨工业大学市政环境工程学院,黑龙江 哈尔滨 150001;北京工业大学环境与能源工程学院,北京 100022
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NITROGEN REMOVAL FROM HIGH AMMONIA PHARMACEUTICAL WASTEWATER via NITRITE
LI Yongzhi;PENG Yongzhen;WANG Shuying
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Abstract: In this study, laboratory-scale experiments were conducted by using Sequencing Batch Reactor (SBR) activated sludge process to treat wastewater stream from a pharmaceutical factory. Biological nitrogen removal can be achieved via partial nitrification and denitrification and its efficiency was above 99% at 23℃±1℃. The experimental results indicated that the nitrite oxidizers were more sensitive than ammonia oxidizers to the free ammonia in wastewater. The ammonia was oxidized at pH 7 and 7.5 respectively, which suggested a critical free ammonia concentration of 0.2mg8226;L-1 at which the nitrite oxidizers were inhibited.
李勇智;彭永臻;王淑滢.
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https://hgxb.cip.com.cn/CN/Y2003/V54/I10/1482