Constructed Wetland
nounPronunciation: /kənˈstrʌktəd ˈwɛtlənd/
An engineered shallow basin or channel planted with aquatic vegetation and lined with permeable substrates (often limestone or organic materials) that treats contaminated water through biogeochemical processes. The wetland removes contaminants via plant uptake, microbial activity, adsorption to substrates, and chemical precipitation.
Plain English
A man-made wetland planted with aquatic plants that naturally filters and cleans contaminated mine water.
Etymology & History
Usage
"The Constructed Wetland successfully reduced iron concentrations from 150 mg/L to below 5 mg/L through biological treatment."
Style guide notes: Always capitalize when referring to a specific facility; use lowercase for general descriptive references.
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Frequently Asked Questions
What plants are typically used in Constructed Wetlands for mine treatment?
Cattails, bulrushes, and sedges are common; species selection depends on climate, water chemistry, and regional availability.
How long do Constructed Wetlands effectively treat mine drainage?
With proper design and maintenance, wetlands can function effectively for 20+ years, making them economical long-term solutions.
Why Test Candidates on This?
Important design component tested in reclamation engineering and environmental compliance examinations for mine closure.
Required skill level: Mid