Effects of Solid-Phase Organic Carbon and Hydraulic Residence Time on Manganese(II) Removal in a Passive Coal Mine Drainage Treatment System

Fubo Luan; William D. Burgos

doi:10.1007/s10230-018-0548-7

Effects of Solid-Phase Organic Carbon and Hydraulic Residence Time on Manganese(II) Removal in a Passive Coal Mine Drainage Treatment System

Fubo Luan, William D. Burgos

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Passive treatment is a cost-effective method for Mn(II) removal from coal mine drainage via microbial oxidation and abiotic sorption/oxidation by Mn oxide (MnO _x ). Emplacement of solid-phase carbon within passive treatment systems to slowly release organic carbon has been proposed to enhance microbial Mn(II) removal. We tested the effects of wood chips as a solid-phase carbon source on Mn(II) removal efficiency. Both softwood (white pine) and hardwood (red oak) digestion solution (10 mg C/L) inhibited Mn(II) removal due to dissolution and coating of the reactive MnO _x surface. Our results indicate that wood chips would not be a suitable solid-phase organic amendment for Mn removal. A strong linear correlation was observed between hydraulic residence time and Mn(II) removal rate.

Original language	English (US)
Pages (from-to)	130-135
Number of pages	6
Journal	Mine Water and the Environment
Volume	38
Issue number	1
DOIs	https://doi.org/10.1007/s10230-018-0548-7
State	Published - Mar 6 2019

All Science Journal Classification (ASJC) codes

Water Science and Technology
Geotechnical Engineering and Engineering Geology

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title = "Effects of Solid-Phase Organic Carbon and Hydraulic Residence Time on Manganese(II) Removal in a Passive Coal Mine Drainage Treatment System",

abstract = " Passive treatment is a cost-effective method for Mn(II) removal from coal mine drainage via microbial oxidation and abiotic sorption/oxidation by Mn oxide (MnO x ). Emplacement of solid-phase carbon within passive treatment systems to slowly release organic carbon has been proposed to enhance microbial Mn(II) removal. We tested the effects of wood chips as a solid-phase carbon source on Mn(II) removal efficiency. Both softwood (white pine) and hardwood (red oak) digestion solution (10 mg C/L) inhibited Mn(II) removal due to dissolution and coating of the reactive MnO x surface. Our results indicate that wood chips would not be a suitable solid-phase organic amendment for Mn removal. A strong linear correlation was observed between hydraulic residence time and Mn(II) removal rate.",

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N2 - Passive treatment is a cost-effective method for Mn(II) removal from coal mine drainage via microbial oxidation and abiotic sorption/oxidation by Mn oxide (MnO x ). Emplacement of solid-phase carbon within passive treatment systems to slowly release organic carbon has been proposed to enhance microbial Mn(II) removal. We tested the effects of wood chips as a solid-phase carbon source on Mn(II) removal efficiency. Both softwood (white pine) and hardwood (red oak) digestion solution (10 mg C/L) inhibited Mn(II) removal due to dissolution and coating of the reactive MnO x surface. Our results indicate that wood chips would not be a suitable solid-phase organic amendment for Mn removal. A strong linear correlation was observed between hydraulic residence time and Mn(II) removal rate.

AB - Passive treatment is a cost-effective method for Mn(II) removal from coal mine drainage via microbial oxidation and abiotic sorption/oxidation by Mn oxide (MnO x ). Emplacement of solid-phase carbon within passive treatment systems to slowly release organic carbon has been proposed to enhance microbial Mn(II) removal. We tested the effects of wood chips as a solid-phase carbon source on Mn(II) removal efficiency. Both softwood (white pine) and hardwood (red oak) digestion solution (10 mg C/L) inhibited Mn(II) removal due to dissolution and coating of the reactive MnO x surface. Our results indicate that wood chips would not be a suitable solid-phase organic amendment for Mn removal. A strong linear correlation was observed between hydraulic residence time and Mn(II) removal rate.

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Effects of Solid-Phase Organic Carbon and Hydraulic Residence Time on Manganese(II) Removal in a Passive Coal Mine Drainage Treatment System

Abstract

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