Negative entropy drive NH4+-N oxidation to N2 and hydrogen ion reduction to H2

被引：0

作者：

Cao, Zhanping ^{[1
,2
]}

Duan, Xinyue ^{[1
,2
]}

Liu, Yuxin ^{[1
,2
]}

Meng, Ye ^{[1
,2
]}

机构：

[1] Tiangong Univ, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China

[2] Tiangong Univ, Sch Environm Sci & Engn, Tianjin 300387, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 58卷

基金：

中国国家自然科学基金;

关键词：

Negative entropy; Nitrogen removal; Hydrogen production; Biological function anode; ANAEROBIC METHANE OXIDATION; MICROBIAL FUEL-CELLS; ELECTRON-TRANSFER; NITROGEN; AMMONIA; REMOVAL; CARBON;

D O I：

10.1016/j.ijhydene.2024.01.231

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This article describes the oxidation of NH4+-N to N2 by functional bacteria on the anode and the reduction of H+ to H2 on the cathode under the input of negative entropy for the first time. When the voltage is 0.3 V, 86.1 % of NH4+-N is converted to N2 and the volume ratio of H2 produced on the cathode and N2 on the anode is 1:2.93. As the voltage increased from 0.3 to 0.5 V, the ratio of NH4+-N oxidation to N2 decreased sharply from 86.1 % to 4.2 %. Anode potential is the key factor affecting the pathway of NH4+-N oxidation by functional microorganism on the anode. The oxidation of NH4+-N on the anode is closely related to functional microorganisms such as PHOSHE36, Anaerolineaceae, Gemmatimonadaceae, Hyphomonadaceae, and Nitrosomonadaceae. The negative entropy input drives the coupling process of NH4+-N oxidation to N2 on the anode and H+ reduction to H2 on the cathode.

引用

页码：495 / 499

页数：5

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