在城市含水层 (伊朗阿尔博兹省) 中使用多参数方法识别地下水中酸盐来源
Abdulhalim Zaryab1, Farshad Alijani2, Kay Knoeller3
1Engineering Geology and Hydrogeology, Faculty of Geology and Mines, Kabul Polytechnic University, District 5, Kabul, Afghanistan.
Environmental geochemistry and health
|February 26, 2024
概括
卡拉吉城市水库中的酸盐污染严重,主要来自城市污水. 综合方法准确地确定了污染源,以更好地管理水资源.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 地质化学 地质化学
背景情况:
- 水中的高酸盐 (NO3) 度对人类健康和生态系统构成风险.
- 有效管理酸盐污染需要确定其来源和涉及的过程.
研究的目的:
- 确定酸盐来源并量化它们对伊朗卡拉吉城市水层污染的贡献.
- 评估酸盐来源分配的综合方法的有效性.
主要方法:
- 土地使用数据,水化分析和双稳定同位素的整合.
- 贝叶斯稳定同位素混合模型 (BSIMM) 的应用用于定量来源识别.
- 使用NO3̄/Cl ̅与Cl ̅图表来确认来源.
主要成果:
- 地下水样本显示,酸盐的含量明显超过了世卫组织标准 (39%在雨季,52%在干旱季节).
- 城市污水被确定为主要的酸盐来源 (78.2%干季,87.5%潮季),其次是土壤有机和化学肥料.
- 化是占主导地位的生物地球化学过程,化最小.
结论:
- 城市污水是Karaj城市水层中酸盐污染的主要驱动因素.
- 使用BSIMM和多参数分析的综合方法提高了酸盐来源识别的准确性.
- 这些发现支持卡拉吉地区的可持续地下水管理战略.
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