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题名: Influence of carbon sources on nutrient removal in A(2)/O-MBRs: Availability assessment of internal carbon source
作者: Xu, Rongle; Fan, Yaobo; Wei, Yuansong; Wang, Yawei; Luo, Nan; Yang, Min; Yuan, Xing; Yu, Rong
刊名: JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期: 2016-10-01
卷号: 48, 期号:0, 页码:59-68
关键词: Carbon source ; Nutrient removal ; Mass balance ; Cost analysis
DOI: 10.1016/j.jes.2015.12.031
部门归属: 水污染控制实验室
英文摘要: Both internal carbon source and some external carbon sources were used to improve the nutrient removal in Anaerobic-Anoxic-Oxic-Membrane Bioreactor (A(2)/O-MBRs), and their technical and cost analysis was investigated. The experimental results showed that the nutrient removals were improved by all the carbon source additions. The total nitrogen and phosphorus removal efficiency were higher in the experiments with external carbon source additions than that with internal carbon source addition. It was found that pathways of nitrogen and phosphorus transform were different dependent on different carbon source additions by the mass balance analysis. With external carbon source addition, the simultaneous nitrification and denitrification occurred in aerobic zone, and the P-uptake in aerobic phase was evident. Therefore, with addition of C-MHP (internal carbon source produced from sludge pretreatment by microwave-H2O2 process), the denitrification and phosphorus-uptake in anoxic zone was notable. Cost analysis showed that the unit nitrogen removal costs were 57.13 CNY/kg N of C-acetate addition and 54.48 CNY/kgN of C-MHP addition, respectively. The results indicated that the C-MHP has a good technical and economic feasibility to substitute external carbon sources partially for nutrient removal. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36234
Appears in Collections:水污染控制实验室_期刊论文

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Recommended Citation:
Xu, Rongle,Fan, Yaobo,Wei, Yuansong,et al. Influence of carbon sources on nutrient removal in A(2)/O-MBRs: Availability assessment of internal carbon source[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,48(0):59-68.
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