氢自养反硝化细菌对纳米铁沉降性能的影响

doi:10.11894/iwt.2018-0828

工业水处理 ›› 2019, Vol. 39 ›› Issue (10): 41-44. doi: 10.11894/iwt.2018-0828

氢自养反硝化细菌对纳米铁沉降性能的影响

刘瑞阳¹(),岳俊杰^1,*(),韩温诺¹,安毅²

1. 天津理工大学环境科学与安全工程学院, 天津 300384
2. 农业部环境保护科研监测所产地环境监测与预警创新团队, 天津 300191

收稿日期:2019-07-30 出版日期:2019-10-20 发布日期:2019-10-29
通讯作者: 岳俊杰 E-mail:liuruiyang0903@163.com;yue_junjie@163.com
作者简介:刘瑞阳(1994-),硕士研究生。电话:13072296717, E-mail:liuruiyang0903@163.com
基金资助:
国家自然科学基金项目(41573107)

Effect of hydrogenotrophic bacteria on sedimentation of nanoscale zero-valent iron

Ruiyang Liu¹(),Junjie Yue^1,*(),Wennuo Han¹,Yi An²

1. School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
2. Innovative Team of Monitoring and Precaution for Cropland Environment, Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin 300191, China

Received:2019-07-30 Online:2019-10-20 Published:2019-10-29
Contact: Junjie Yue E-mail:liuruiyang0903@163.com;yue_junjie@163.com
Supported by:
国家自然科学基金项目(41573107)

摘要/Abstract

摘要：

通过静态沉降实验，考察了氢自养反硝化细菌（HTB）在不同水质条件下对纳米零价铁（nZVI）沉降性能的影响。结果表明：当体系中腐殖酸（HA）质量浓度为10 mg/L时，1/3HTB对nZVI沉降性的抑制作用最明显。K⁺和Ca²⁺对nZVI的沉降有促进作用；K⁺浓度为3、6 mmol/L时，HTB对nZVI的沉降性有抑制作用，在不同浓度Ca²⁺条件下，HTB对nZVI的沉降性均有促进作用，可加速nZVI的沉降。

关键词: 纳米零价铁, 氢自养反硝化细菌, 腐殖酸, 沉降性

Abstract:

Static sedimentation experiments were conducted to investigate the effects of hydrogenotrophic bacteria (HTB) on the sedimentation of nZVI under different water quality conditions. The experimental results showed that when the concentration of HA in the system was 10 mg/L, 1/3HTB had the most obvious inhibitory effect on the sedimentation of nZVI. Both K⁺ and Ca²⁺ promoted the sedimentation of nZVI. When the concentration of K⁺ in the system was 3 or 6 mmol/L, HTB inhibited the sedimentation of nZVI. However, when Ca²⁺ was present in the system, HTB accelerated the sedimentation of nZVI.

Key words: nanoscale zero-valent iron, hydrogenotrophic bacteria, humic acid, sedimentation

中图分类号:

X523

刘瑞阳, 岳俊杰, 韩温诺, 安毅. 氢自养反硝化细菌对纳米铁沉降性能的影响[J]. 工业水处理, 2019, 39(10): 41-44.

Ruiyang Liu, Junjie Yue, Wennuo Han, Yi An. Effect of hydrogenotrophic bacteria on sedimentation of nanoscale zero-valent iron[J]. Industrial Water Treatment, 2019, 39(10): 41-44.

https://www.iwt.cn/CN/Y2019/V39/I10/41

图/表 6

图1 氢自养反硝化细菌培养箱示意

图2 不同浓度HTB对nZVI沉降性的影响

图3 不同浓度HA对nZVI沉降性的影响

图4 HTB在不同浓度HA下对nZVI沉降性的影响

图5 不同浓度K⁺（a）和Ca²⁺（b）对nZVI沉降性能的影响

图6 HTB在不同浓度K⁺（a）、Ca²⁺（b）条件下对nZVI沉降性能的影响

参考文献 12

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