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

• 试验研究 • 上一篇    下一篇

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. 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 Yue1,*(),Wennuo Han1,Yi An2   

  1. 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:

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: