期刊文献+

饮用水基础设施中放射性物质吸附与解吸研究进展 被引量:1

A review on adsorption and decontamination of radiological agents from drinking water infrastructure
下载PDF
导出
摘要 随着核能的开发与利用,放射性污染对公众健康、经济、社会产生了显著影响。放射性物质在饮用水基础设施上的吸附引起人们的重视。本文总结了放射性物质在饮用水基础设施上吸附的持久性问题,并在相应的放射性物质去除技术基础上,重点探索了三种代表性放射性元素(铯、锶、钴)在饮用水基础设施上的吸附效应及相应地除污手段。在饮用水系统中,钴通过与铁氧化物和自由氯作用吸附在管壁铁氧化物表面,通过酸化去污技术可以得到有效的清除。锶与铁氧化物的吸附作用不持久,但通过水泥砂浆,可以增强其吸附作用。同时考察了在停滞的饮用水系统中,无流动水体状态下,铯对铁氧化物吸附效应。对饮用水基础设施中放射性物质吸附的发展方向进行了展望。扩大现有铯、锶、钴与其他常见饮用水基础设施的吸附持久性研究,特别是针对吸附于水泥砂浆的研究,进一步探索低p H法及其他可能方法对放射性物质的去除作用是未来的研究重点。 With the development and utilization of nuclear energy,radioactive contamination has imposed great impacts on public health and on socio- economy. The adsorption of radiological agents to drinking water infrastructures is obtaining more and more attention. This paper summarizes the current understanding on the persistence of adsorption of radioactive agents to drinking water infrastructure and explores decontamination options for three important radiological agents( cesium,strontium and cobalt),based on know- how on adsorption effects and relevant decontamination methods for radiological agents. In drinking water system,the adsorption of Cobalt is persistent due to its precipitation on iron pipe wall as the result of its reaction with iron oxidants and free chlorine. In that case,acidification is an effective decontamination method. The adsorption of Strontium in tap water is less persistent,but its adsorption is enhanced in cement- mortar system. Adsorption of Cesium is persistent in iron water infrastructure as the water flow is in static state. Future research should focus on expanding know- how on persistent adsorption of Cesium,Strontium and Cobalt to other common infrastructure materials,in particular the cement- mortar. And Low p H treatment is a prospective method for future decontamination studies.
作者 吴迪
出处 《环保科技》 2016年第3期55-59,共5页 Environmental Protection and Technology
关键词 饮水基础设施 吸附 净化 cesium strontium cobalt drinking water infrastructure adsorption decontamination
  • 相关文献

参考文献35

  • 1Panitskiy A, Lukashcnko S. Nature of radioactive con- tamination of components of ecosystems of streamflows from tunnels of Degelen massif [ J ]. Journal of environ- mental radioactivity, 2015, 144:32 - 40.
  • 2Matsui S, Kasahara S, Morimoto G, et al. Radioactive contamination of nest materials of the Eurasian Tree Spar- row Passer montanus due to the Fukushima nuclear acci- dent : The significance in the first year[ J ]. Environmen- tal Pollution, 2015, 206:159- 162.
  • 3Danevich F, Bailiff I, Kobychev V, et al. Effect of re- crystallisation on the radioactive contamination of CaWO 4 crystal scintillators [ J ]. Nuclear Instruments and Meth- ods in Physics Research Section A: Accelerators, Spec- trometers, Detectors and Associated Equipment, 2011, 631(1) :44 -53.
  • 4Bolsunovsky A, Dementyev D. Radioactive contamination of pine (Pinus sylvestris ) in Krasnoyarsk (Russia) fol- lowing fallout from the Fukushima accident [ J ]. Journal of environmental radioactivity, 2014, 138:87 - 91.
  • 5Hosten B, Rizzo - Padoin N, Scherrmann J - M, et al. Iode stable et prrvention de la contamination par les io- des radioactifs: donnres pharmacologiques et pharmaceu- tiques [ C ]. Annales Pharmaceutiques Franqaises: Elsevier, 2012:75 - 81.
  • 6Stockdale A, Bryan N D. The influence of natural organic matter on radionuclide mobility under conditions relevant to cementitious disposal of radioactive wastes: A review of direct evidence [ J ]. Earth - Science Reviews, 2013, 121 : 1 - 17.
  • 7Majidnia Z, Idris A. Evaluation of cesium removal from radioactive waste water using maghemite PVA - alginate beads[ J~. Chemical Engineering Journal, 2015, 262: 372 - 382.
  • 8Borai E, Breky M, Sayed M, et al. Synthesis, character-ization and application of titanium oxide nanocomposites for removal of radioactive cesium, cobalt and europium i- ons[J]. Journal of colloid and interface science, 2015, 450 : 17 - 25.
  • 9Rizzo P. Water and Wastewater Pipe Nondestructive Eval- uation and Health Monitoring : A Review [ J 1. Advances in Civil Engineering, 2010, 2010:13.
  • 10Silva - S Nchez N, Schofield J E, Mighall T M, et al. Climate changes, lead pollution and soil erosion in south Greenland over the past 700 years [ J ]. Quaternary Re- search, 2015, 84(2):159 - 173.

同被引文献8

引证文献1

二级引证文献9

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部