[1]王松波,唐欢,何香雨,等.含氧阴离子对MnO2催化氧化氨氮活化效果的影响[J].中国给水排水,2026,42(11):1-7.
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含氧阴离子对MnO2催化氧化氨氮活化效果的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第11期 页码: 1-7 栏目: 出版日期: 2026-06-01
Title:
Effect of Oxyanions on Activation of MnO2 for Catalytic Oxidation of Ammonia Nitrogen
作者:
王松波1,2,3， 唐欢1,2,3， 何香雨1,2,3， 高艺佩1,2,3， 黄廷林1,2,3
（1.西安建筑科技大学 环境与市政工程学院，陕西 西安 710055；2.陕西省环境工程重点实验室，陕西 西安 710055；3.西北水资源与环境生态教育部重点实验室，陕西 西安 710055）
Author(s):
WANG　Songbo1，2，3， TANG　Huan1，2，3， HE　Xiangyu1，2，3， GAO　Yipei1，2，3， HUANG　Tinglin1，2，3
（1. School of Environmental and Municipal Engineering， Xi’an University of Architecture and Technology， Xi’an 710055， China； 2. Shaanxi Key Laboratory of Environmental Engineering， Xi’an 710055， China； 3. Northwest China Key Laboratory of Water Resources and Environmental Ecology， Xi’an 710055， China）
关键词:
地下水;  二氧化锰;  氨氮;  催化氧化活性;  活化时间;  含氧阴离子
Keywords:
groundwater;  MnO2;  ammonia nitrogen;  catalytic oxidation activity;  activation time;  oxyanion
摘要:
在锰氧化物催化氧化去除氨氮工艺中，水源水条件下锰氧化物的活化及催化氧化活性的建立是实现该技术效能的关键。以MnO2为例，研究了水中碳酸氢根、硅酸根和磷酸氢根等常见的含氧阴离子对锰氧化物活性建立的影响。当单独加入一种含氧阴离子时，MnO2无法产生催化氧化活性，且碳酸氢根的加入会导致MnO2向MnOOH转化。含氧阴离子之间具有协同作用，碳酸氢根和磷酸氢根的同时存在是MnO2建立催化氧化氨氮能力的关键，当两者的浓度分别为2和0.002 mmol/L时，MnO2的催化氧化氨氮活性建立得最快，在此基础上加入硅酸根或提高碳酸氢根和磷酸氢根的浓度均会抑制MnO2催化氧化氨氮活性的产生。这些研究结果为优化水处理应用中基于锰氧化物的催化氧化系统提供了重要科学依据。
Abstract:
In catalytic oxidation processes for ammonium removal using manganese oxides, the activation of Mn oxides under source-water conditions and the subsequent establishment of their catalytic activity are critical for determining treatment performance. Using MnO2 as a representative catalyst, this study systematically examined the roles of common aqueous oxyanions—including bicarbonate, silicate, and phosphate—in regulating MnO2 activation. The results demonstrated that the presence of a single oxyanion was insufficient to induce catalytic activity in MnO2, and bicarbonate alone even promoted its transformation into MnOOH. Notably, a synergistic interaction between oxyanions was identified: the coexistence of bicarbonate and phosphate was indispensable for establishing the catalytic activity of MnO2 toward ammonium oxidation. The most rapid development of catalytic activity was achieved at bicarbonate and phosphate concentrations of 2 mmol/L and 0.002 mmol/L, respectively. In contrast, the addition of silicate or elevated concentrations of bicarbonate and phosphate suppressed the activity. These findings provide fundamental mechanistic insights and practical guidance for optimizing Mn oxide?based catalytic oxidation systems in water treatment applications.

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更新日期/Last Update: 2026-06-01