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Statistical and Analytical Evaluation of Groundwater Quality in Al-Rawdhatain Field

机译:Al-Rawdhatain油田地下水水质的统计分析评估

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摘要

In the arid and semi-arid area, groundwater is a crucial source of water for agricultural and drinking purposes. This study examines the physicochemical parameters of Al-Rawdhatain groundwater wells (18 wells) between 1990 and 2009. For drinking water purposes, analysis shows that pH falls within the safe limits and Mg~(2+) and K~+ values for all tested wells fall within WHO'S (2004) permissible limits. In contrast, there were some exceedances in dissolved anions and cations, and almost all the samples tested exceeded the desirable limit of electrical conductivity (EC) and total dissolved solids (TDS), for drinking water purposes. The suitability of water for irrigation purposes has been assessed and analysis showed that 55-60% of the groundwater wells are suitable for agricultural purposes according to sodium adsorption ratio (SAR), Kelly's ratio (KR), sodium percentage (Na%), permeability index (PI), and total hardness (TH) indices. The correlation coefficient matrix between the hydro-chemical parameters was carried out using Pearson's correlation. Moderate-strong correlation was observed among the major elements, Na~+, Ca~(2+), Mg~(2+), Cl~- and EC, which clearly identifies the main elements contributing to the groundwater salinity and their tendency to follow a similar trend. In this study, a factor model was developed and results showed that three major processes control the hydrochemistry of ground-water resources in the area: weathering processes, evaporation of minerals from sedimentary rocks, and salination. The Gibbs's diagrams support the factor analysis results.
机译:在干旱和半干旱地区,地下水是用于农业和饮用目的的重要水源。本研究调查了1990年至2009年之间Al-Rawdhatain地下水井(18口井)的理化参数。出于饮用水的目的,分析表明,pH值均在安全范围内,所有测试的pH值均在Mg〜(2+)和K〜+值范围内井落在WHO(2004)的允许范围内。相反,溶解的阴离子和阳离子有一些超标,并且几乎所有测试样品都超出了饮用水的导电率(EC)和总溶解固体(TDS)的理想极限。评估了水对灌溉用途的适宜性,分析表明,根据钠吸附率(SAR),凯利比(KR),钠百分比(Na%),渗透率,有55-60%的地下水井适合农业用途指数(PI)和总硬度(TH)指数。水化学参数之间的相关系数矩阵是使用皮尔森相关性进行的。 Na〜+,Ca〜(2 +),Mg〜(2 +),Cl〜-和EC之间的主要元素之间存在中等程度的强相关性,从而清楚地确定了造成地下水盐度的主要元素及其趋势。遵循类似的趋势。在这项研究中,建立了一个因子模型,结果表明,三个主要过程控制着该地区的地下水水化学:风化过程,沉积岩中矿物的蒸发和盐碱化。吉布斯图支持因素分析结果。

著录项

  • 来源
    《Environmental Progress》 |2014年第3期|895-904|共10页
  • 作者单位

    Department of Environmental Technology Management, College for Women, College of Engineering and Petroleum,Kuwait University, Kuwait, Safat 13060, Kuwait;

    Department of Earth and Environmental Science, Faculty of Science, College of Engineering and Petroleum, Kuwait University, Kuwait, Safat 13060, Kuwait;

    Department of Civil Engineering, College of Engineering and Petroleum, Kuwait University, Kuwait, Safat 13060, Kuwait;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    groundwater quality assessment; irrigation and drinking water; correlation analysis; factor analysis; Gibbs's diagrams;

    机译:地下水水质评估;灌溉和饮用水;相关分析;因子分析;吉布斯的图;
  • 入库时间 2022-08-17 13:28:13

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