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Updated: Feb 11, 2026
10:05
Metal Corrosion and the Efficiency of Corrosion Inhibitors in Less Conductive Media
Published on: November 3, 2018
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Ranking media for multi-pollutant removal efficiency in bioretention
Summary
Selecting the optimal bioretention medium is crucial for urban stormwater management. This study used a fuzzy synthetic evaluation model to rank sand media, identifying Media I as the most effective for pollutant removal and infiltration.
Area of Science:
- Environmental Engineering
- Water Management
- Sustainable Urban Development
Background:
- Bioretention systems are vital for managing urban stormwater runoff.
- Effective selection of bioretention media is key to maximizing pollutant removal.
- Existing methods for media selection lack comprehensive evaluation criteria.
Purpose of the Study:
- To develop and apply a novel fuzzy synthetic evaluation model for assessing bioretention media.
- To rank various sand-based media based on their pollutant removal capacities.
- To provide guidance for selecting optimal bioretention media for urban stormwater treatment.
Main Methods:
- Application of fuzzy set theory and the improved analytic hierarchy process (IAHP).
- Development of a fuzzy synthetic evaluation model for comprehensive efficiency assessment.
- Ranking of seven different sand media based on pollutant removal performance.
Main Results:
- The fuzzy synthetic evaluation model proved effective for bioretention media selection.
- Media were ranked by pollutant removal capacity: Media III > Media V > Media I > Media VI > Media II > Media VII > Media IV.
- Media I exhibited the highest comprehensive removal efficiency and infiltration rate, with excellent removal of Cd2+, Zn2+, and Pb2+.
Conclusions:
- The fuzzy synthetic evaluation model is a rational approach for selecting bioretention media.
- Media I is recommended for its superior performance in pollutant removal and infiltration.
- While heavy metals and ammonia nitrogen removal varied, nitrate and total phosphorus removal showed no distinct differences among the tested media.
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