Woodwaste leachate is generated when water, in the form of precipitation or groundwater supplies, comes in contact with refuse stored in woodwaste landfills. As the soluble constituents combine with water, it is therefore the landfill material which determines the parameter concentrations. Generally, leachate can be characterized by high concentrations of organics, high chemical and biochemical oxygen demand, the presence of metal ions, acidity, dark colouration, and oily surface and foaming. These characteristics are responsible for decreases in dissolved oxygen, iron precipitation from the soils, and changes in vegetation growth, all of which can lead to toxicity and effects on aquatic life, particularly fish. Two landfills were studied in the Port Alberni District - Mt. Fergie (PR-2227) and Pt. Alberni (PR-1751), both of which generate leachate.
Riley, Jody. 1993. The Environmental Impact of Woodwaste Leachate Generated from Two Landfills in the Port Alberni District. BC Ministry of Environment
Topic: Solid or Liquid Waste
Keywords: Mt. Fergie, Pt. Alberni, leachate generation, bioassay, water chemistry, toxicology, sampling
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