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Updated: Jan 22, 2026

Mesocosm-Scale Constructed Wetland Design for Wastewater Treatment
Published on: May 2, 2025
Multiphasic assessment of effects of design configuration on nutrient removal in storing multiple-pond constructed
Dan Li1, Zhaosheng Chu2, Minsheng Huang3
1National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
Abstract:
As an important technology for purifying and recycling agricultural wastewater, storing multiple-pond constructed wetlands (SMCWs) are widely used in the treatment of non-point source pollution. However, the influences of design configuration (surface area, volume, flow path, aspect ratio, water depth, percent vegetation cover and planting pattern) on pollution mitigation in SMCWs are still underexplored. To improve the sustainability of constructed wetlands, the removal performances of four groups of SMCWs were assessed through multiphasic analyses. The maximum removal efficiencies of nitrogen and phosphorus were 63.7% and 64.0%, respectively. Higher mass removal rates per square meter (MRR) and mass removal rates per cubic meter (MRRV) were observed in ecological floating treatment wetlands (EFTWs). Compared with RE, the interception performances of deep-water SMCWs were more clearly described by using MRR and MRRV. EFTWs with good plant configurations (mixed planting, 60-80% plant cover) were recommended in deep-water SMCWs (water depth > 1.5 m).
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