Water quality impact of mining in the Wolmyoung area of Korea, and its short-term changes

Jin Kyoo Kang, Yungoo Song, Ji W. Moon, Hi S. Moon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The water quality of a stream affected by mining activities was investigated on the basis of a mineralogical study for the related solids, and their subsequent changes were monitored for a year, so as to clarify the impact of the acid mine drainage (AMD) to the stream. The mine-affected stream was classified into Ca-Mg and sulfate type, and the concentrations of its major constituents ranged from tens to hundreds times higher than those of the background stream. This was most likely due to acid-generating reactions involving the oxidation of sulfides in the mineralized zone, and subsequent neutralizations involving calcite and chlorite as possible sources of Ca and Mg, respectively. This interpretation is consistent with the thermodynamic and mass-balance calculations. The concentrations of the dissolved constituents changed seasonally, depending largely on rainfall in the mine-affected stream. However, the dramatic decrease in the ratio of Mg/Ca, independent of rainfall, indicates that some changes did occur in sources, including the heterogeneous distribution of main source materials, the change in chemical conditions, especially in pH, pe(Eh), and PCO2, in the reacting fluid, and the consequential solubility changes in sources. In spite of the limitations of short-term monitoring, it does provide some meaningful information in order to construct a long-term monitoring program.

Original languageEnglish
Pages (from-to)349-367
Number of pages19
JournalWater, Air, and Soil Pollution
Volume129
Issue number1-4
DOIs
Publication statusPublished - 2001 Jul 28

Fingerprint

Water quality
water quality
Rain
Acids
Calcium Carbonate
Monitoring
Calcite
Sulfides
Sulfates
Drainage
Solubility
rainfall
Thermodynamics
acid mine drainage
neutralization
monitoring
Oxidation
Fluids
chlorite
mass balance

All Science Journal Classification (ASJC) codes

  • Atmospheric Science
  • Earth-Surface Processes
  • Environmental Science(all)
  • Environmental Chemistry
  • Pollution
  • Water Science and Technology

Cite this

Kang, Jin Kyoo ; Song, Yungoo ; Moon, Ji W. ; Moon, Hi S. / Water quality impact of mining in the Wolmyoung area of Korea, and its short-term changes. In: Water, Air, and Soil Pollution. 2001 ; Vol. 129, No. 1-4. pp. 349-367.
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Water quality impact of mining in the Wolmyoung area of Korea, and its short-term changes. / Kang, Jin Kyoo; Song, Yungoo; Moon, Ji W.; Moon, Hi S.

In: Water, Air, and Soil Pollution, Vol. 129, No. 1-4, 28.07.2001, p. 349-367.

Research output: Contribution to journalArticle

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