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

被引：5
作者：
Chen Xi [1 ]
Xiang Zhuangzhuang [2 ]
Huang Xiao [3 ]
Rong Huimin [2 ]
Bai Jie [2 ,4 ]
Zhao Yangguo [2 ,4 ]
机构：
[1] Ocean Univ China, Coll Marine Life Sci, Qingdao 266003, Peoples R China
[2] Ocean Univ China, Coll Environm Sci & Engn, Qingdao 266100, Peoples R China
[3] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing 210044, Peoples R China
[4] Ocean Univ China, Minist Educ, Key Lab Marine Environm & Ecol, Qingdao 266100, Peoples R China
来源：
JOURNAL OF OCEAN UNIVERSITY OF CHINA | 2021年 / 20卷 / 04期
关键词：
mariculture wastewater; C; N ratio; A; O-MBBR process; EPS; EXTRACELLULAR POLYMERIC SUBSTANCES; MEMBRANE BIOREACTOR; ACTIVATED-SLUDGE; MICROBIAL COMMUNITY; FOULING MITIGATION; BIOFILM REACTORS; CARBON SOURCE; COD/N RATIO; PERFORMANCE; DENITRIFICATION;
D O I：
10.1007/s11802-021-4748-6
中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
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.
引用
收藏
页码：879 / 885
页数：7
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