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The need for hydrophytebased systems in the treatment of waste
Hydraulic characteristics of constructed wetlands at Richmond
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acid mine drainage adsorption aeration aerobic ammonia anaerobic aquatic plants Armstrong artificial wetlands average bacteria biomass Brix cells concentrations constructed wetlands convection denitrification depth dewatering discharge drainage effluent experimental Figure Frenchville gravel beds growth helophyte hydraulic conductivity hydraulic loading hydrophyte increased infiltration inflow influent and effluent inlet Kickuth lagoon layer loading rate macrophytes metal mg/L nitrate nitrification nitrogen nitrogen removal nutrient removal operation organic outlet oxidation oxygen demand performance period phosphate phosphorus phosphorus removal Phragmites australis plot Pollution pond potential purification RBTS reduced reed bed reed bed treatment Regstrup removal efficiency removal rates retention rhizome rhizosphere root zone samples Schoenoplectus Scirpus season sediment septic tank sewage treatment sludge species substrate surface water suspended solids Table treated treatment plant treatment system trench Typha unplanted uptake values vegetation wastewater treatment water level weed wetland systems