Remediation and Management of Acidified Pit Lakes and Outflowing Waters

Abstract

Pit lakes are a common feature in a mining-dominated landscape composed of active and closed mine sites, along with large dump areas and surface and groundwater that are adversely affected by acid drainage. The generally accepted goal is to have a landscape with a balanced and healthy system of lakes, rivers, and groundwater. The chapter presents a critical review of the currently known approaches for the abatement of acidification and its consequences, including hydrological management, chemical and biological in-lake treatment, treatment of in- and out-flows, and prevention.