期刊
ENVIRONMENTAL TECHNOLOGY
卷 37, 期 8, 页码 1008-1017出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2015.1096962
关键词
response surface methodology; nitrate; Microbial fuel cells; bioelectrical reactor
资金
- National Natural Science Foundation of China (NSFC) [21307117, 41440025]
- Research Fund for the Doctoral Programme of Higher Education of China [20120022120005]
- Beijing Excellent Talent Training Project [2013D009015000003]
- Beijing Higher Education Young Elite Teacher Project [YETP0657]
- Fundamental Research Funds for the Central Universities [2652015172]
Factors influencing the performance of a continual-flow bioelectrical reactor (BER) intensified by microbial fuel cells for groundwater nitrate removal, including nitrate load, carbon source and hydraulic retention time (HRT), were investigated and optimized by response surface methodology (RSM). With the target of maximum nitrate removal and minimum intermediates accumulation, nitrate load (for nitrogen) of 60.70 mg/L, chemical oxygen demand (COD) of 849.55 mg/L and HRT of 3.92 h for the BER were performed. COD was the dominant factor influencing performance of the system. Experimental results indicated the undistorted simulation and reliable optimized values. These demonstrate that RSM is an effective method to evaluate and optimize the nitrate-reducing performance of the present system and can guide mathematical models development to further promote its practical applications.
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