Mine Water Treatment in Hongai Coal Mines

Phuong Thao Dang,Vu Chi Dang,M Borowski,J Jarzyna,T Lipecki

doi:10.1051/e3sconf/20183501007

Phuong Thao Dang, Vu Chi Dang + Show 3 more

Open Access

https://doi.org/10.1051/e3sconf/20183501007

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Abstract

Acid mine drainage (AMD) is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine drainage treatment in Hongai coal mines. In addition, selection and criteria for the design of the treatment systems have been presented.

Highlights

Coal mining can have negative impacts on the environment in surrounding area and one of these problems is acid mine drainage (AMD)
Acid mine drainage (AMD) is the result of sulfide minerals, typically pyrite in coal seams, where the pyrite is exposed to oxidising conditions in coal mining to produce sulphuric acid (H2SO4) and metal precipitates such as Fe oxyhydroxides (Equation 1) [1]
Coal mining has a long history in Hongai area, mining activities are associated with acid drainage problem that can cause a harmful affect on the natural ecosystem of rivers

Summary

Introduction

Coal mining can have negative impacts on the environment in surrounding area and one of these problems is acid mine drainage (AMD). Acid mine drainage (AMD) is the result of sulfide minerals, typically pyrite in coal seams, where the pyrite is exposed to oxidising conditions in coal mining to produce sulphuric acid (H2SO4) and metal precipitates such as Fe oxyhydroxides (Equation 1) [1]. Mine drainage must be treated in order to protect stream and to help prevent any problem that can cause pollution in the area. Until 2009, mine drainage in Hongai area was allowed to discharge into rivers the sea. Drainage treatment systems have been installed to better manage the waste water from coal mines in Hongai area

Study area

Materials and methods

Findings

Conclusion