Use of microbial community to evaluate performance of a wetland system in treating Pb/Zn mine drainage

Yu H. YU, Wei S. FENG, Yun F. SHEN, Zhi H. YE, Ming Hung WONG

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The performance of a wetland system in treating lead (Pb)/zinc (Zn) mine drainage was evaluated by using the polyurethane foam unit (PFU) microbial community (method), which has been adopted by China as a standardized procedure for monitoring water quality. The wetland system consisted of four cells with three dominant plants: Typha latifolia, Phragmites australis and Paspalum distichum. Physicochemical characteristics [pH, EC, content of total suspended solid (TSS) and metals (Pb, Zn, Cd, and Cu)] and PFU microbial community in water samples had been investigated from seven sampling sites. The results indicated that the concentrations of Pb, Zn, Cd, Cu, and TSS in the mine drainage were gradually reduced from the inlet to the outlet of the wetland system and 99%, 98%, 75%, 83%, and 68% of these metals and TSS respectively, had been reduced in concentration after the drainage passed through the wetland system. A total of 105 protozoan species were identified, the number of protozoa species and the diversity index (DI) gradually increased, while the heterotrophic index (HI) gradually decreased from the inlet to the outlet of the wetland system. The results indicated that DI, HI, and total number species of protozoa could be used as biological indicators indicating the improvement of water quality. Copyright © 2005 Springer Science+Business Media, Inc.

Original languageEnglish
Pages (from-to)842-848
JournalEnvironmental Management
Volume36
Issue number6
DOIs
Publication statusPublished - Dec 2005

Fingerprint

Zinc mines
mine drainage
Wetlands
Drainage
microbial community
zinc
wetland
Protozoa
diversity index
foam
Polyurethanes
Water quality
Foams
Zinc
water quality
metal
Metals
bioindicator
Lead
drainage

Citation

Yu, Y. H., Feng, W. S., Shen, Y. F., Ye, Z. H., & Wong, M. H. (2005). Use of microbial community to evaluate performance of a wetland system in treating Pb/Zn mine drainage. Environmental Management, 36(6), 842-848. doi: 10.1007/s00267-003-0276-y

Keywords

  • Ecological restoration
  • Microbial community
  • Receiving system
  • Wetland
  • PFU method