Use of cattails in treating wastewater from a Pb/Zn mine

Chongyu Lan, Guizhu Chen, Liuchun Li, Ming Hung WONG*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

This article describes the use of a combined treatment system, which includes an aquatic treatment pond with Typha latifolia Linn. (Typhaceae) as the dominant species and a stabilization pond, to treat the wastewater from a Pn/Zn mine at Shaoguan, Guangdong Province, China. In 1983, it was noted that T. latifolia bloomed in areas affected by the wastewater emitted from the mine, hence a combined purification system was subsequently built. The influent contained high levels of total suspended solids (4635 mg/liter), chemical oxygen demand (14.5 mg/liter) as well as Pb (1.6 mg/liter) and Zn (1.9 mg/liter). The results of the effluent after treatment showed that the total suspended solids, chemical oxygen demand, Pb, and Zn had been reduced by 99%, 55%, 95%, and 80% respectively. The results of plant tissue analysis indicled that T. latifolia assimilated significant amounts of Pb and Zn, especially in the root portion. During 1986 several species of algae and fish were present in the pond, usually with a higher density in areas containing lower metal concentrations in the water.

Original languageEnglish
Pages (from-to)75-80
Number of pages6
JournalEnvironmental Management
Volume16
Issue number1
DOIs
Publication statusPublished - Jan 1992

Scopus Subject Areas

  • Global and Planetary Change
  • Ecology
  • Pollution

User-Defined Keywords

  • China
  • Hydrophytes
  • Pb/Zn mine waslewater
  • Treatment

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