研究论文

深层承压含水层人工回灌条件下地下水中硝酸根的衰减

  • 武显仓 ,
  • 赵琪 ,
  • 桓颖 ,
  • 张文静
展开
  • 1. 吉林大学环境与资源学院, 长春130021;
    2. 吉林大学水资源与环境研究所, 长春130021
武显仓,硕士研究生,研究方向为水文地球化学,电子信箱:wuxiancang@outlook.com

收稿日期: 2014-11-25

  修回日期: 2015-01-16

  网络出版日期: 2015-03-19

基金资助

国家自然科学基金项目(41472215)

Attenuation of nitrate in a deep confined aquifer during artificial recharge process

  • WU Xiancang ,
  • ZHAO Qi ,
  • HUAN Ying ,
  • ZHANG Wenjing
Expand
  • 1. College of Environment and Resources, Jilin University, Changchun 130021, China;
    2. Institute of Water Resources and Environment, Jilin University, Changchun 130021, China

Received date: 2014-11-25

  Revised date: 2015-01-16

  Online published: 2015-03-19

摘要

收集了某地深层承压含水层人工回灌从2012 年8 月13 日至2013 年1 月16 日的水质数据,研究了回灌过程中地下水中NO3- 的衰减。在深层承压含水层中,硝酸根的衰减主要受反硝化作用的影响。讨论了pH 值、电子供体、温度、溶解氧等影响因素,结果表明,在本次回灌过程中,pH 值、电子供体对NO3- 的衰减基本没有影响,硝酸根衰减主要受到地下水水温及溶解氧的影响。回灌过程中,由于地下水水温逐渐下降,溶解氧质量浓度逐渐上升,NO3- 衰减半衰期经历了一个先保持稳定而后迅速上升的过程。

本文引用格式

武显仓 , 赵琪 , 桓颖 , 张文静 . 深层承压含水层人工回灌条件下地下水中硝酸根的衰减[J]. 科技导报, 2015 , 33(4) : 28 -32 . DOI: 10.3981/j.issn.1000-7857.2015.04.004

Abstract

In recent years, excessive exploitation of groundwater has caused many environmental, geological and ecological problems, so artificial recharge has been adopted in many places. However, whether artificial groundwater recharge will lead to negative effects on groundwater environment needs further research. In this study, water quality data was collected from August 13, 2012 when the recharge began, to January 16, 2013 to study attenuation of nitrate in a deep confined aquifer during artificial recharge process. In this deep confined aquifer, the attenuation of nitrate was dominated by denitrification. The pH, electron donor, temperature, and dissolved oxygen (DO) which can affect denitrification were studied. The results showed that the pH and electron donor had basically no influence on nitrate attenuation, which was mainly influenced by water temperature and DO in this study. During the recharge process, because of decrease of water temperature and increase of DO, the half-life of nitrate increased rapidly after a stable period.

参考文献

[1] 李恒太, 石萍, 武海霞. 地下水人工回灌技术综述[J]. 中国国土资源经济, 2008, 21(3): 41-42. Li Hengtai, Shi Ping, Wu Haixia. Artificial recharge technology of groundwater[J]. Natural Resource Economics of China, 2008, 21(3): 41-42.
[2] 林学钰, 张文静, 何海洋, 等. 人工回灌对地下水水质影响的室内模拟实验[J]. 吉林大学学报: 地球科学版, 2012, 42(5): 1404-1409. Lin Xueyu, Zhang Wenjing, He Haiyang, et al. Experiment on impact of groundwater quality during artificial recharge process[J]. Journal of Jilin University: Earth Science Edition, 2012, 42(5): 1404-1409.
[3] Katou H, Clothier B E, Green S R. Anion transport involving competitive adsorption during transient water flow in an Andisol[J]. Soil Science Society of America Journal, 1996, 60(5): 1368-1375.
[4] Clay D E, Zheng Z, Liu Z, et al. Bromide and nitrate movement through undisturbed soil columns[J]. Journal of Environmental Quality, 2004, 33 (1): 338-342.
[5] Burt T P, Matchett L S, Goulding K W T, et al. Denitrification in riparian buffer zones: The role of floodplain hydrology[J]. Hydrological Processes, 1999, 13(10): 1451-1463.
[6] Parton W J, Mosier A R, Ojima D S, et al., Generalized model for N2 and N2O production from nitrification and denitrification [J]. Global Biogeochemical Cycles, 1996, 10(3): 401-412.
[7] Rivett M O, Buss S R, Morgan P, et al. Nitrate attenuation in groundwater: a review of biogeochemical controlling processes[J]. Water Research, 2008, 42(16): 4215-4232.
[8] Brettar I, Sanchez Perez J M, Trémolieres M. Nitrate elimination by denitrification in hardwood forest soils of the Upper Rhine floodplain-correlation with redox potential and organic matter[J]. Hydrobiologia, 2002, 469(1-3): 11-21.
[9] Gillham R W, Cherry J A. Field evidence of denitrification in shallow groundwater flow systems[J]. Water Pollution Research Journal of Canada, 1978, 13(1): 53-71.
[10] DeSimone L A, Howes B L. Nitrogen transport and transformations in a shallow aquifer receiving wastewater discharge: A mass balance approach[J]. Water Resources Research, 1998, 34(2): 271-285.
文章导航

/