Potential risks of effluent from acid mine drainage treatment plants at abandoned coal mines

Jaehwan Seo, Sung Wook Kang, Wonhyun Ji, Hun Je Jo, Jinho Jung

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The lethal and sublethal toxicity of effluent from three acid mine drainage treatment plants were monitored from August 2009 to April 2010 using Daphnia magna (reference species) and Moina macrocopa (indigenous species). Acute lethal toxicity was observed in Samma effluent due to incomplete neutralization of acid mine drainages by the successive alkalinity producing system (SAPS). Additionally, there was no significant difference in toxicity values (TU) between D. magna and M. macrocopa (p < 0.05). Toxicity identification results of the final effluent collected in January 2010 showed that Al and Zn were key toxicants in addition to acidic pH. Unlike the Samma effluent, both Hwangji and Hamtae effluent had pH values that were near neutrality and showed either no acute toxicity or toxicity values less than 1 TU. However, the feeding rates of D. magna and M. macrocopa were significantly reduced when compared to the control (p < 0.05). These findings suggest that the Hamtae and Hwangji effluent likely have a sublethal effect on aquatic organisms in receiving water bodies.

Original languageEnglish
Pages (from-to)990-996
Number of pages7
JournalBulletin of Environmental Contamination and Toxicology
Volume88
Issue number6
DOIs
Publication statusPublished - 2012 Jun 1

Fingerprint

Abandoned mines
Coal
Coal mines
Drainage
Toxicity
Effluents
Daphnia
Aquatic Organisms
Acids
Body Water
Therapeutics
Aquatic organisms
Alkalinity
Water

Keywords

  • Acid mine drainage
  • Acute toxicity
  • Feeding rate inhibition
  • Heavy metals
  • Toxicity identification Evaluation

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Toxicology

Cite this

Potential risks of effluent from acid mine drainage treatment plants at abandoned coal mines. / Seo, Jaehwan; Kang, Sung Wook; Ji, Wonhyun; Jo, Hun Je; Jung, Jinho.

In: Bulletin of Environmental Contamination and Toxicology, Vol. 88, No. 6, 01.06.2012, p. 990-996.

Research output: Contribution to journalArticle

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