Evaluation on the suspended solids and heavy metals removal mechanisms in bioretention systems
Franz Kevin F. Geronimo,Marla C. Maniquiz-Redillas,Jungsun Hong,Lee-Hyung Kim
Abstract
Application of bioretention systems in Korea is highly considered due to its minimal space requirements, appropriateness as small landscape areas and good pollutant removal and peak hydraulic flow reduction efficiency. In this study, the efficiency of two lab-scale bioretention types having different physical properties, media configuration and planted with different shrubs and perennials was investigated in reducing heavy metal pollutants in stormwater runoff. Type A bioretention systems were planted with shrubs whereas type B were planted with perennials. Chrysanthemum zawadskii var. latilobum (A-CL) and Aquilegia flabellata var. pumila (A-AP) respectively were planted in each type A bioretention reactors while Rhododendron indicum linnaeus (B-RL) and Spiraea japonica (B-SJ), respectively were planted in each type B bioretention reactors. Results revealed that the four lab-scale bioretention reactors significantly reduced the influent total suspended load by about 89 to 94% (p
Key Words
bioretention; heavy metal; low impact development; nature-based solution; stormwater management
Address
Franz Kevin F. Geronimo, Jungsun Hong and Lee-Hyung Kim — Department of Civil and Environment Engineering, Kongju National University, 1223-24 Cheonan-daero, Seobukgu, Cheonan city, Chungnam province, South Korea, 31080
Marla C. Maniquiz-Redillas — Civil Engineering Department., 2401 Taft Avenue, De La Salle University-Manila, Malate Manila, Philippines
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