负载型纳米Fe/Ni材料同步去除水中硝酸盐/磷酸盐

doi:10.11894/1005-829x.2017.37(5).053

工业水处理 ›› 2017, Vol. 37 ›› Issue (5): 53-57. doi: 10.11894/1005-829x.2017.37(5).053

负载型纳米Fe/Ni材料同步去除水中硝酸盐/磷酸盐

申战辉, 史嘉璐, 樊静

黄淮水环境与污染防治教育部重点实验室, 河南省环境污染控制重点实验室, 河南师范大学环境学院, 河南新乡 453007

收稿日期:2017-03-11 修回日期:2017-03-11 出版日期:2017-05-20 发布日期:2017-06-03
作者简介:申战辉(1985-),博士,副教授。E-mail:zhshen@htu.cn。
基金资助:
国家自然科学基金青年科学基金项目（21407043）；河南省教育厅科学技术研究重点项目（14A610003）；河南省高等学校重点科研项目应用研究（16A610009）

Fe/Ni bimetal supported nano-particle composite materials for the simultaneous removal of nitrate/phosphate from water

Shen Zhanhui, Shi Jialu, Fan Jing

Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang 453007, China

Received:2017-03-11 Revised:2017-03-11 Online:2017-05-20 Published:2017-06-03

摘要/Abstract

摘要：

水体的富营养化主要与硝酸盐和磷酸盐有关，但目前的处理方法大多只对其中一种污染物有去除效果。制备的负载型Fe/Ni双金属复合材料（DOW 3N-Fe/Ni）能实现NO₃^-和PO₄^3-的同步去除。当NO₃^--N为20 mg/L，PO₄^3--P为1 mg/L时，NO₃^-和PO₄^3-的去除率分别可达70%和99%。探讨了DOW 3N-Fe/Ni同步去除NO₃^-和PO₄^3-的机理，铁镍金属在还原NO₃^-的过程中被氧化为金属离子或金属氧化物及氢氧化物，并通过Lewis酸碱理论、静电作用及吸附作用去除PO₄^3-，实现NO₃^-和PO₄^3-的同步去除。

关键词: Fe/Ni双金属, 纳米颗粒, 硝酸盐, 磷酸盐, 同步去除

Abstract:

The eutrophication of water bodies is mainly in relation to nitrate and phosphate. However,most treatment methods at present can have removing effects only on one kind of the pollutants. The home-made bimetal Fe/Na supported composite materials(DOW 3N-Fe/Ni) can realize the simultaneous removal of nitrate/phosphate. When NO₃^-N is 20 mg/L,and PO₄^3-P 1 mg/L,the removing rates of NO₃^-and PO₄^3-can research 70% and 99%,respectively. The mechanisms of simultaneous removal of nitrate/phosphate by using DOW 3N-Fe/Ni are discussed. It is known that Fe/Ni metals in the reduction process of NO₃^-are oxidized as metallic ions or metallic oxidants and hydroxide. Based on Lewis acid-base theory,electrostatic effect,and adsorption effect on the removal of PO₄^3-,the simultaneous removal of NO₃^-and PO₄^3-is achieved.

Key words: Fe/Ni bimetallic nanoparticles, nanoparticle, nitrate, phosphate, simultaneous removal

中图分类号:

X703.1

申战辉, 史嘉璐, 樊静. 负载型纳米Fe/Ni材料同步去除水中硝酸盐/磷酸盐[J]. 工业水处理, 2017, 37(5): 53-57.

Shen Zhanhui, Shi Jialu, Fan Jing. Fe/Ni bimetal supported nano-particle composite materials for the simultaneous removal of nitrate/phosphate from water[J]. INDUSTRIAL WATER TREATMENT, 2017, 37(5): 53-57.

https://www.iwt.cn/CN/Y2017/V37/I5/53

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负载型纳米Fe/Ni材料同步去除水中硝酸盐/磷酸盐

Fe/Ni bimetal supported nano-particle composite materials for the simultaneous removal of nitrate/phosphate from water

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负载型纳米Fe/Ni材料同步去除水中硝酸盐/磷酸盐

Fe/Ni bimetal supported nano-particle composite materials for the simultaneous removal of nitrate/phosphate from water

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