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论文类型：期刊论文

发表时间：2020-03-01

发表刊物：PROCESS BIOCHEMISTRY

收录刊物：SCIE

卷号：90

页面范围：148-155

ISSN号：1359-5113

关键字：ANAMMOX; Sludge; Microbial fuel cell; Nitrogen removal; Electricity generation

摘要：In this study, ANAMMOX sludge was used as anode microbial catalysts to drive electrocatalytic reduction of nitrate in the SnCu-Pd/CFC catalytic cathode with total nitrogen (TN) removal efficiency of ANAMMOX as well as generate electricity without additional carbon and energy source. The system operation with 1.74 Kg.N/m(3).d as nitrogen loading rate (NLR) exhibited a TN removal efficiency of 96.3% and obtained the highest nitrogen removal rate (NRR, 1.69 Kg.N/m(3).d), increased by 14.9% and 0.30 Kg.N/m(3).d compared with open circuit (control group), respectively. Maximum voltage (39.8 mV) and power density (21.20 +/- 0.05 mW/m(3), standardized to anode surface area) were also observed. Additionally, microbial community analysis revealed community structure of S2(anode) had an obvious disparity compared with others as the predominant ANAMMOX bacteria (AnAOB) closed to anode surface was evolved from Candidatus_Kuenenia to Candidatus_Brocadia.