Effect of C/N Ratio on Nitrogen Removal of A/O-MBBR Process for Treating Mariculture Wastewater

被引：0
|
作者：
Xi Chen
Zhuangzhuang Xiang
Xiao Huang
Huimin Rong
Jie Bai
Yangguo Zhao
机构：
[1] Ocean University of China,College of Marine Life Science
[2] Ocean University of China,College of Environmental Science and Engineering
[3] Nanjing University of Information Science and Technology,Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control
[4] Ministry of Education,Key Laboratory of Marine Environment and Ecology (Ocean University of China)
来源：
Journal of Ocean University of China | 2021年 / 20卷
关键词：
mariculture wastewater; C/N ratio; A/O-MBBR process; EPS;
D O I：
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中图分类号：
学科分类号：
摘要：
In order to explore the effect of carbon and nitrogen (C/N) ratio on the performance of anoxic/aerobic-moving bed bio-film reactor (A/O-MBBR) process for treating mariculture wastewater, a laboratory-scale A/O-MBBR was conducted. The results showed that the reduction of C/N ratio was conducive to improving the removal efficiency of chemical oxygen demand (COD) and ammonia nitrogen (NH4+-N), while inhibiting that of nitrite nitrogen (NO2−-N) and nitrate nitrogen (NO3−-N). The extracellular polymeric substances (EPS) in anoxic zone were significantly higher in concentration than that in aerobic zone although they both declined with decrease of C/N ratio. The result provides solid support for better controlling the pollution of mariculture wastewater.
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页码：879 / 885
页数：6
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