An assessment of the physico-chemical parameters of Oran sebkha basin
An assessment of the physico-chemical parameters of Oran sebkha basin
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DOI：
10.1007/s13201-013-0149-3
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发表时间：
2014-03
影响因子：
5.5
通讯作者：
Boualla Nabila;B. Ahmed;M. Kacem
中科院分区：
文献类型：
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作者：
Boualla Nabila;B. Ahmed;M. Kacem
人口增长和工业化程度提高导致生活水平提高，从而导致水质量下降，并可能通过损害水质量和水文预算对天然水体造成压力。这项研究旨在确定奥兰塞卜卡盆地地下水化学元素的来源。 Belkhiri 等人应用逆地球化学模型来推导水化学变化的来源。 （doi：10.1016/j.geoderma.2010.08.016，2010）。 2011年7月，从Oran sebkha盆地的不同地点抽取了55个水样进行采样，并现场测量了pH值和电导率等物理化学参数。此外，实验室还测量了氯化物、硫酸盐、碱度、钙、镁、钠和钾。使用 PHREEQC 开发了统计组的逆地球化学模型，以阐明控制水化学的化学反应。反地球化学模拟表明，导出该地区的水化学所需的阶段相对较少。从广义上讲，该地区水化学演化的反应可分为三类：（1）蒸发岩矿物的溶解； (2)碳酸盐矿物的沉淀； (3) Belkhiri 等人的硅酸盐矿物的风化反应。 （doi：10.1016/j.geoderma.2010.08.016，2010）。在当前研究地点获得的水的物理化学参数的高值表明物理化学参数的变化表明需要相对较少的阶段来获得该地区的水化学。值范围为 pH (5.1–7.6)、电导率 (720–15,820 μS cm−1)、氯化物 (994–7,810 mg l−1)、硫酸盐 (6.1–112.4 mg l−1)、碱度 (421–19,962 mg l−1)、钙 (80–680 mg l−1)、镁（212.4–4,525 mg l−1）、钠（124.2–4,687.4 mg l−1）和钾（0.9–42.5 mg l−1）。
Growing populations and increasing industrialization cause increase in living standard, which result in decrease in the quality of water and may put stresses on natural waters by impairing both the quality of the water and the hydrological budget. This research aims at determining the origin of the chemical elements of groundwater from the Oran sebkha basin. It applies the inverse geochemical modeling to derive the sources of variation in the hydrochemistry by Belkhiri et al. (doi: 10.1016/j.geoderma.2010.08.016 , 2010). Fifty-five water samples were selected from different point in Oran sebkha basin for sampling purpose in July 2011. Physico-chemical parameters such as pH and electric conductivity were measured in situ. Moreover, chloride, sulfate, alkalinity, calcium, magnesium, sodium and potassium were measured in the laboratory. Inverse geochemical models of the statistical groups were developed using PHREEQC to elucidate the chemical reactions controlling water chemistry. The inverse geochemical modeling demonstrated that relatively few phases are required to derive water chemistry in the area. In a broad sense, the reactions responsible for the hydrochemical evolution in the area fall into three categories: (1) dissolution of evaporite minerals; (2) precipitation of carbonate minerals; and (3) weathering reactions of silicate minerals by Belkhiri et al. (doi: 10.1016/j.geoderma.2010.08.016 , 2010). The high values of the physico-chemical parameters of water obtained in the present study sites indicate a variation in the physico-chemical parameters demonstrated that relatively few phases are required to derive water chemistry in the area. Range of values was found as pH (5.1–7.6), conductivity (720–15,820 μS cm−1), chloride (994–7,810 mg l−1), sulfate (6.1–112.4 mg l−1), alkalinity (421–19,962 mg l−1), calcium (80–680 mg l−1), magnesium (212.4–4,525 mg l−1), sodium (124.2–4,687.4 mg l−1) and potassium (0.9–42.5 mg l−1).