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地化学建模和水化学分析用于确定矿井排水区周围的水质
Gregory Udie Sikakwe1, Godswill Abam Eyong2, Samuel Adebayo Ojo3
1Department of Geology and Geophysics, Faculty of Physical Sciences, Alex Ekwueme Federal University Ndufu-Alike, Abakaliki, Nigeria.
概括
矿山排水影响水质,度,和超过安全饮用限值. 虽然有些水适合灌和工业用途,但饮用应用需要进一步处理.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 评估水质水质的评估.
背景情况:
- 矿井排水严重降低了矿区的水质,改变了天然的水化条件.
- 评估矿井排水对水源的影响对于了解污染动态和确保水安全至关重要.
研究的目的:
- 评估受矿井排水影响的水源的水化特性和水质.
- 确定化学物种的来源并评估它们的流动性和潜在风险.
- 确定水是否适合饮用,灌和工业用途.
主要方法:
- 对各种参数的水样进行水化学分析,包括pH值,度,重金属 (Pb,Cd) 和主要离子.
- 规格建模和和指数,以了解化学形式和矿物相互作用.
- 多变量统计分析 (相关性,主要成分分析) 以确定污染源.
- 水质指数 (WQI) 的计算,以评估水的整体适用性.
主要成果:
- , (Pb) 和 (Cd) 的平均度超过了世界卫生组织 (WHO) 和饮用水质量国家标准 (NSDWQ) 的饮用水.
- 多变量分析表明,检测到的化学物种具有地质 (自然) 和人为 (人为) 的起源.
- 化学物种化表明,大多数是可溶的,移动的自由离子形式,除了 (Cr).
- 和指数显示了几个矿物质的低和,包括无水化物,石和石.
- 水质指数值表明适用于灌和工业用途,适用于饮用水的程度各不相同.
结论:
- 受矿井排水影响的水源表现出高水平的,和,对人类健康构成风险.
- 水质一般更适合用于灌和工业应用,而不是直接饮用.
- 综合水化学和统计方法有效预测地下水污染物,并为水污染管理策略提供信息.
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