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Updated: Jan 29, 2026
08:24
Mesocosm-Scale Constructed Wetland Design for Wastewater Treatment
Published on: May 2, 2025
921
Improved test to determine design parameters for optimization of free surface flow constructed wetlands
Changqiang Guo1, Yuanlai Cui1, Yuanzhi Shi2
1State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China.
Bioresource Technology
|February 18, 2019
Summary
Optimizing constructed wetland design is key for effective wastewater treatment. Key parameters like water depth and flow rate significantly impact both hydraulic and treatment performance, leading to improved pollutant removal.
Area of Science:
- Environmental Engineering
- Water Treatment Technologies
Background:
- Constructed wetlands are crucial for wastewater treatment.
- Understanding design parameter impacts is vital for optimizing performance.
Purpose of the Study:
- To assess how design parameters affect constructed wetland hydraulic and treatment performance.
- To identify optimal design configurations for integrated performance.
Main Methods:
- Orthogonal tests were employed to systematically evaluate design parameter effects.
- Key parameters investigated included water depth, inlet/outlet layout, flow rate, aspect ratio, and plant spacing.
Main Results:
- Water depth, inlet/outlet layout, flow rate, and aspect ratio primarily influenced hydraulic performance.
- Water depth, plant spacing, and inlet/outlet layout significantly impacted treatment performance.
- Optimal conditions achieved 27.2% TN, 16.3% TP, and 30.7% TSS removal.
Conclusions:
- Specific design parameters significantly influence either hydraulic or treatment performance, but not always both.
- Strong correlations exist between hydraulic indicators, purification indicators, and mass removal capacity.
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