Electrolytic Treatment of Synthetic Acid Mine Drainage Containing High Concentrations of Ferric Iron

The formation of acid mine drainage (AMD) is a serious environmental problem in areas with mining and processing industries worldwide. Their generation is associated with chemical and biological processes of oxidation of sulfide minerals, mainly pyrite. Sources of AMD can be deposits of sulfide minerals and coal with a high content of pyrite sulfur, mining waste and some tailings. The impact of AMD on surface and groundwater in mining areas continues for decades after the cessation of extraction. An example of the negative impact of generated acid mine drainage on the state of surface waters is in the region of Madzharovo. Years after the cessation of mining, the waters at the discharge points "Momina Skala", "Harman Kaya" and "Pandak Dere" are characterized by low pH values and high concentrations of iron, copper, zinc, cadmium, lead and manganese.

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Treatment of synthetic acid mine drainage using rice wine waste as a carbon source

Environmental Earth Sciences ◽

10.1007/s12665-013-2852-7 ◽

2013 ◽

Vol 71 (10) ◽

pp. 4603-4609 ◽

Cited By ~ 6

Author(s):

Gyoung-Man Kim ◽

Dae-Hoon Kim ◽

Jung-Seock Kang ◽

Hwanjo Baek

Keyword(s):

Carbon Source ◽

Acid Mine Drainage ◽

Mine Drainage ◽

Rice Wine ◽

Acid Mine ◽

Synthetic Acid

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A Review of Technologies Used in Handling The Acid Mine Drainage Challenge: Perspectives on Using Green Liquor Dregs As a Sustainable Option For Treatment of Acid Mine Drainage

The Journal of Solid Waste Technology and Management ◽

10.5276/jswtm/2021.1 ◽

2021 ◽

Vol 47 (1) ◽

pp. 1-18

Author(s):

Keolebogile R. Sebogodi ◽

Jonas K. Johakimu ◽

B. Bruce Sithole

Keyword(s):

Acid Mine Drainage ◽

Mine Drainage ◽

Current Trend ◽

Dissolved Metals ◽

Green Liquor ◽

Acid Mine ◽

Treatment And Prevention ◽

Green Liquor Dregs ◽

High Concentrations ◽

By Products

Acid mine drainage (AMD) is one of the repercussions that result from earth-moving activities around the sulfide-bearing mineral hosts. The detrimental effects associated with this AMD are driven by its characteristics, which include low pH and high concentrations of sulfate and toxic dissolved metals. Traditionally, the prevention and treatment of AMD are achieved by using technologies that use, amongst other, naturally occurring soils and carbonates. However, the continual use of these materials may eventually lead to their depletion. On the other hand, industrial by-products have been proven to occupying land that could have otherwise been used for profitable businesses. Additionally, the handling and maintenance of landfills are costly. In this current trend of a circular economy that is driven by industrial symbiosis, scientists are concerned with valorizing industrial by-products. One such by-product is the green liquor dregs (GLD) from Kraft mills. The neutralizing and geotechnical properties of these wastes have prompted the research pioneers to seek their potential use in handling the challenges associated with AMD. In this review, the formation AMD, trends in technologies for treatment and prevention of AMD are critically analyzed. This includes the feasibility of using GLD as an alternative, promising sustainable material.

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