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综合空间绘图和修复,以改善Larkana的地下水质量

Asif Ahmed Shaikh¹, Abdul Ghaffar Memon¹, Iftikhar Ahmed Channa²

¹Department of Environmental Engineering, NED University of Engineering and Technology, 75270 Karachi, Pakistan.

|July 29, 2025

概括

巴基斯坦Larkana的地下水显示,尽管总体质量良好,但某些地区的含量令人担忧. 一个低成本的过器有效地去除,提高水安全.

科学领域:

环境科学环境科学
水资源管理水资源管理
公共卫生公共卫生

背景情况:

地下水质量对公共卫生和可持续发展至关重要.
饮用水中的污染对健康构成重大风险.
巴基斯坦的Larkana面临着地下水质量的挑战,需要进行评估.

研究的目的:

为了全面评估巴基斯坦Larkana的地下水质量.
识别污染热点及其与物理化学参数的相关性.
为了评估低成本的除过器的有效性.

主要方法:

系统的基于网格的采样 (n=112) 和标准化测试方法 (ASTM/APHA).
物理化学参数分析 (pH,度,EC,TDS) 和度测量.
地理信息系统 (GIS) 用于空间分析 (IDW,Getis-Ord Gi*) 和水质指数 (WQI) 计算.
一个新的坎素过器原型的评估.

主要成果:

地下水的pH值 (6.8-8.0),度 (0.14-13.03 NTU),EC (270-3593 μS/cm) 和TDS (136-1780 mg/L) 均进行了表征.
含量各不相同 (无法检测到48ppb),96%低于世卫组织的指导方针;然而,在Larkana东部确定了热点.
坎素过器实现了90-96%的去除,95-99%的度降低和显著的微生物减少.
地质信息系统的分析显示出明显的热点和与EC/TDS之间的负相关性.

结论:

拉卡纳的大部分地下水质量"好"或"优良",但局部污染需要注意.
坎过器是一个有前途的低成本解决方案,用于和度去除.
综合的地理信息系统和水质评估为管理影响的地下水资源提供了一个框架.

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