磷浓度对生物阴极微生物燃料电池脱氮产电的影响

储朋朋; 程建萍; 胡淑恒; 郭靖; 谢霄云; 汪家权

引用本文:	储朋朋,程建萍,胡淑恒,等.磷浓度对生物阴极微生物燃料电池脱氮产电的影响[J].灌溉排水学报,,():-.
	CHU Pengpeng,CHENG Jianping,HU Shuheng,et al.磷浓度对生物阴极微生物燃料电池脱氮产电的影响[J].灌溉排水学报,,():-.

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磷浓度对生物阴极微生物燃料电池脱氮产电的影响
储朋朋¹, 程建萍², 胡淑恒¹, 郭靖¹, 谢霄云¹, 汪家权¹
1.合肥工业大学资源与环境工程学院;2.合肥工业大学机械工程学院

摘要:

考虑废水中磷氮共存的因素,文章探究不同磷酸钾浓度下,生物阴极型微生物燃料电池(Microbial Fuel Cell, MFC)的脱氮产电性能。实验过程中,4组反应器阴极液中添加不同磷酸钾的浓度,实验结果表明,阴极液中添加的硝酸盐浓度固定为100 m.L_^-1,MFC阴极液中磷氮质量浓度比越大,MFC产电性能越差,脱氮效率越低。在添加85.68 m.L_^-1磷酸钾浓度条件下,即磷氮质量浓度比为1:8条件下,MFC的最高输出电压达到0.42 V,最大功率密度832.13 mW.m_^-_³,阴极硝酸盐去除率最大为87.86%。整个降解过程中总磷几乎没有变化,磷酸根质量浓度先减小后增大,磷酸根可能转化成其他形式的磷。

关键词: 生物阴极;MFC产电;硝酸盐;脱氮;磷酸钾浓度;

DOI：

分类号:X703.1

基金项目:国家自然科学基金资助项目(41372246)；安徽省自然科学基金资助项目(1808085MD102)

Effect of phosphorus concentration on nitrogen removal and electricity generation of biological cathode microbial full cell

CHU Pengpeng¹, CHENG Jianping², HU Shuheng¹, GUO Jing¹, XIE Xiaoyun¹, WANG Jiaquan¹

1.School of Resources and Environmental Engineering,Hefei University of Technology;2.School of Mechanical Engineering,Hefei University of Technology

Abstract:

Considering the coexistence of phosphorus and nitrogen in the waste water, this article explores the denitrification and electrical performance of Microbial Fuel Cell, MFC at different potassium phosphorus concentration. During the experiment, different concentrations of potassium phosphate are added to the cathode solution of the four groups of reactors. The experimental results show that the concentration of nitrate are added in the cathode solution is fixed at 100 mg.L_^-1. The large the mass concentration ratio of phosphorus and nitrogen in MFC cathode solution,the worse the electrical performance of MFC and the lower the nitrogen removal efficiency. Under the condition of add 85.68 mg.L_^-1potassium phosphate concentration,that is, the mass concentration ratio of phosphorus to nitrogen is 1:8, the maximum output voltage of MFC reaches 422.00 mV and the maximum power density is 832.13 mW.m_^-_³. During the whole degradation process, the total P hardly changed. the phosphate concentration first decreased and then increased, and the phosphate might be converted into other forms of phosphorus.

Key words: biological cathode;MFC to produce electricity;nitrate; denitrification;potassium phosphorus concentration