Long term remediation of highly polluted acid mine drainage: a sustainable approach to restore the environmental quality of the Odiel river basin.
作者： Manuel A. Caraballo , Francisco Macías , Tobias S. Rötting , José Miguel Nieto , Carlos Ayora
DOI: 10.1016/J.ENVPOL.2011.08.003
关键词: Iberian Pyrite Belt 、 Drainage basin 、 Aeration 、 Geology 、 Clogging 、 Environmental remediation 、 Environmental engineering 、 Mining engineering 、 Schwertmannite 、 Acid mine drainage 、 Passive treatment system
摘要: Abstract During 20 months of proper operation the full scale passive treatment in Mina Esperanza (SW Spain) produced around 100 mg/L ferric iron aeration cascades, removing an average net acidity up to 1500 mg/L as CaCO3 and not having any significant clogging problem. Complete Al, As, Cd, Cr, Cu, Ti V removal from water was accomplished through almost entire time while Fe ranged between 170 620 mg/L. The system operated at a mean inflow rate 43 m3/day achieving acid load reduction 597 g·(m2 day)−1, more than 10 times higher generally accepted 40 g·(m2 day)−1 value commonly used designing criteria. high performance achieved by demonstrates that this innovative design is simple, efficient long lasting remediation option treat highly polluted mine drainage.
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