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现代地质 ›› 2022, Vol. 36 ›› Issue (02): 563-573.DOI: 10.19657/j.geoscience.1000-8527.2021.176

• 水资源与环境地质 • 上一篇    下一篇

地下水硝酸盐污染源解析及氮同位素分馏效应研究进展

于璐1,2(), 郑天元1,3, 郑西来1,3()   

  1. 1. 中国海洋大学 环境科学与工程学院,山东 青岛 266100
    2. 青岛大学威海创新研究院 生态环境研发中心,山东 威海 264200
    3. 中国海洋大学 海洋环境与生态教育部重点实验室,山东 青岛 266100
  • 收稿日期:2021-09-30 修回日期:2022-03-03 出版日期:2022-04-10 发布日期:2022-06-01
  • 通讯作者: 郑西来
  • 作者简介:郑西来,男,教授,1959年出生,环境工程专业,主要从事水文地质及环境污染与防治研究。Email: zhxilai@ouc.edu.cn
    于璐,女,博士,1987年出生,环境规划与管理专业,主要从事地下水污染与防治研究。Email: yulu1229@qq.com
  • 基金资助:
    国家自然科学基金重点项目(41731280);国家自然科学基金-山东联合基金项目(U1806210);国家自然科学基金面上项目(51978348)

Review of Nitrate Source Apportionment and Nitrogen Isotope Fractionation in Groundwater

YU Lu1,2(), ZHENG Tianyuan1,3, ZHENG Xilai1,3()   

  1. 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao, Shandong 266100, China
    2. Ecological Environment Research and Development Center, Weihai Innovation Institute, Qingdao University, Weihai, Shandong 264200, China
    3. Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, Shandong 266100, China
  • Received:2021-09-30 Revised:2022-03-03 Online:2022-04-10 Published:2022-06-01
  • Contact: ZHENG Xilai

摘要:

地下水硝酸盐污染已成为世界范围内最严重的环境地质问题之一。全面并准确识别硝酸盐污染源,对地下水的有效管理及污染防治具有重要的指导意义。从地下水硝酸盐来源、同位素检测方法、污染源同位素特征、定量解析模型构建、硝酸盐主要转化过程及同位素分馏效应等方面进行总结,比较不同解析方法在硝酸盐溯源中的应用与发展,建议采用多学科、多方法相结合的方式,提高对硝酸盐污染源的全面理解。同位素富集系数是定量解析硝酸盐污染源的重要参数,在源解析过程中探讨硝酸盐转化及同位素分馏机制,能够更好地诠释地下水硝酸盐来源和迁移转化过程,提高源解析的准确性,为地下水硝酸盐污染的准确溯源与有效防治提供参考。

关键词: 硝酸盐, 源解析, 氮循环, 同位素, 同位素分馏

Abstract:

Groundwater nitrate (N O 3 -) pollution has become one of the world’s most serious geoenvironmental problems. Comprehensive and accurate identification of N O 3 - sources has important guiding significance for effective groundwater management and pollution prevention. In this study, we reviewed the N O 3 - sources in groundwater, isotope measurement methods, isotope features of pollution sources, quantitative analytical model, N O 3 - transformation process and isotope fractionation. By comparing the development and application of various N O 3 - source apportionment methods, we invoked that comprehensive and multidisciplinary understanding of N O 3 - sources is needed. Isotope enrichment factor is an important parameter to quantify the contribution of N O 3 - sources. The study of isotopic fractionation effect can better interpret the N O 3 - sources and transformation process in the groundwater, and provide reference for accurate tracing and effective prevention of groundwater N O 3 - pollution.

Key words: nitrate, source apportionment, nitrogen cycle, isotope, fractionation

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