Long term fluctuations of groundwater mine pollution in a sulfide mining district with dry Mediterranean climate: Implications for water resources management and remediation

Manuel A. Caraballo; Francisco Macias; Jose Miguel Nieto; Carlos Ayora

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Long term fluctuations of groundwater mine pollution in a sulfide mining district with dry Mediterranean climate: Implications for water resources management and remediation

机译：地中海气候干燥的硫化矿区地下水矿山污染的长期波动：对水资源管理和修复的意义

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Water resources management and restoration strategies, and subsequently ecological and human life quality, are highly influenced by the presence of short and long term cycles affecting the intensity of a targeted pollution. On this respect, a typical acid mine drainage (AMD) groundwater from a sulfide mining district with dry Mediterranean climate (Iberian Pyrite Belt, SW Spain) was studied to unravel the effect of long term weather changes in water flow rate and metal pollutants concentration. Three well differentiated polluting stages were observed and the specific geochemical, mineralogical and hydrological processes involved (pyrite and enclosing rocks dissolution, evaporitic salts precipitation-redisolution and pluviometric long term fluctuations) were discussed. Evidencing the importance of including longer background monitoring stage in AMD management and restoration strategies, the present study strongly advise a minimum 5-years period of AMD continuous monitoring previous to the design of any AMD remediation system in regions with dry Mediterranean climate.

机译：短期和长期周期的存在会严重影响水资源的管理和恢复策略，进而影响生态和人类的生活质量，从而影响目标污染的强度。在这方面，研究了来自地中海气候干燥的硫化矿区（西班牙西南伊比利亚黄铁矿带）的典型酸性矿井排水（AMD）地下水，以揭示长期天气变化对水流量和金属污染物浓度的影响。观测到了三个高度分化的污染阶段，并讨论了涉及的特定地球化学，矿物学和水文过程（黄铁矿和围岩溶解，蒸发盐的沉淀-再溶解和比重法长期波动）。鉴于在AMD管理和恢复策略中包括更长的背景监测阶段的重要性，本研究强烈建议在地中海气候干燥地区设计任何AMD补救系统之前，至少要进行5年的AMD连续监测。

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来源
《The Science of the Total Environment》 |2016年第1期|427-435|共9页
作者
Manuel A. Caraballo; Francisco Macias; Jose Miguel Nieto; Carlos Ayora;
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作者单位

Geology Department, University of Huelva, Campus 'El Carmen', Av. 3 de Marzo s, E-21071 Huelva, Spain,Mining Engineering Department, University of Chile, Avda. Tupper 2069, 8370451 Santiago, Chile,Advanced Mining Technology Center, University of Chile, Avda. Tupper 2007, 8370451 Santiago, Chile;

Geology Department, University of Huelva, Campus 'El Carmen', Av. 3 de Marzo s, E-21071 Huelva, Spain;

Geology Department, University of Huelva, Campus 'El Carmen', Av. 3 de Marzo s, E-21071 Huelva, Spain;

Institute of Environmental Assessment and Water Research, IDAEA - CSIC Jordi Girona 18, 08034 Barcelona, Spain;

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正文语种 eng
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关键词
Acid mine drainage; Evaporitic salts; Passive treatment systems; Climate change;

机译：酸性矿山排水;蒸发盐;被动治疗系统;气候变化;

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Long term fluctuations of groundwater mine pollution in a sulfide mining district with dry Mediterranean climate: Implications for water resources management and remediation

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