1.北京工业大学教育部传热强化与过程节能重点实验室,北京 100124
2.国家发展与改革委员会能源研究所, 北京 100038
3.重庆大学工程热物理研究所,重庆 400030
陈稳稳(1990—),女,博士研究生,chenwenwen@emails.bjut.edu.cn
刘中良(1958—),男,博士,教授,liuzhl@bjut.edu.cn
收稿:2019-04-26,
修回:2019-05-01,
纸质出版:2019-09-05
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陈稳稳, 刘中良, 姜克隽, 侯俊先, 娄晓歌, 李艳霞, 廖强, 朱恂. 微生物燃料电池处理含柠檬酸钠废水的研究[J]. 化工学报, 2019, 70(S2): 322-328
CHEN Wenwen, LIU Zhongliang, JIANG Kejun, HOU Junxian, LOU Xiaoge, LI Yanxia, LIAO Qiang, ZHU Xun. Study of wastewater containing sodium citrate degraded by microbial fuel cell[J]. CIESC Journal, 2019, 70(S2): 322-328
陈稳稳, 刘中良, 姜克隽, 侯俊先, 娄晓歌, 李艳霞, 廖强, 朱恂. 微生物燃料电池处理含柠檬酸钠废水的研究[J]. 化工学报, 2019, 70(S2): 322-328 DOI: 10.11949/0438-1157.20190428.
CHEN Wenwen, LIU Zhongliang, JIANG Kejun, HOU Junxian, LOU Xiaoge, LI Yanxia, LIAO Qiang, ZHU Xun. Study of wastewater containing sodium citrate degraded by microbial fuel cell[J]. CIESC Journal, 2019, 70(S2): 322-328 DOI: 10.11949/0438-1157.20190428.
柠檬酸钠由于其优良的性质被广泛应用于食品、医药、化工等诸多领域,越来越广泛的应用导致工业和市政污水中柠檬酸钠的含量升高,加剧了水体的富营养化。将柠檬酸钠作为微生物燃料电池(microbial fuel cell
MFC)阳极底物,研究得到了柠檬酸钠单独作为混合菌种MFC底物时的产电性能。结果显示,与乙酸钠和葡萄糖相比,以柠檬酸钠为底物的MFC(Na
3
C
6
H
5
O
7
-MFC)获得的最大功率密度为742.96 mW·m
-2
,是乙酸钠(NaAc-MFC)和葡萄糖(Glu-MFC)的1.77倍和1.12倍。NaAc-MFC和Glu-MFC的启动时间分别约为Na
3
C
6
H
5
O
7
-MFC(57 h)的1.8倍和2.9倍。同时,Na
3
C
6
H
5
O
7
-MFC对COD的去除率为87.65%,与NaAc-MFC和Glu-MFC相差不大。Na
3
C
6
H
5
O
7
-MFC的库仑效率高达61.31%,明显优于NaAc-MFC和Glu-MFC。实验结果表明MFC可以有效地降解柠檬酸钠,能够处理含柠檬酸钠废水,并为柠檬酸钠单独作为底物应用于MFC提供了依据。
Sodium citrate (Na
3
C
6
H
5
O
7
) is widely used for food
medicine
chemical industry and many other fields due to its excellent performance. The extensive application has resulted in an increase of sodium citrate in industrial and municipal sewage and it aggravates the eutrophication of the water body. In this study
sodium citrate is applied as substrate for the anode electricigens and with which microbial fuel cell (MFC) represents good electricity generation performance. The results show that Na
3
C
6
H
5
O
7
-MFC achieves a maximum power density of 742.96 mW·m
-2
which is 1.77 and 1.12 times of that of sodium acetate (NaAc-MFC) and glucose (Glu-MFC)
respectively. The start-up time of NaAc-MFC and Glu-MFC are about 1.8 and 2.9 times of that of Na
3
C
6
H
5
O
7
-MFC (57 h). The Coulombic efficiency of Na
3
C
6
H
5
O
7
-MFC is 61.31%
which is obviously superior to NaAc-MFC and Glu-MFC. This indicates that MFC can degrade sodium citrate in wastewater effectively
which provides a possibility of sodium citrate alone as substrate for MFC research.
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