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treatment coal passive

Jun 16 2010 The Anna S coal mine complex in Tioga County PA produces drainage with a pH of 2836 containing 336 mgL Al 136 mgL Fe and 69 mgL Mn In 2003 the Babb Creek Watershed Association installed two systems that passively treat three discharges from the mine complex Both systems contain four parallel vertical flow ponds followed by aerobic wetlands

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