Please use this identifier to cite or link to this item: https://doi.org/doi.org/10.3390/w13131817
Title: Pilot and Field Studies of Modular Bioretention Tree System with Talipariti tiliaceum and Engineered Soil Filter Media in the Tropics
Authors: NEO TECK HENG 
FANG YEE LIM 
BRANDON LEE CHUAN YEE 
ONG SAY LEONG 
HU JIANGYONG 
GUO HUILING 
Keywords: urban runoff remediation; Talipariti tiliaceum; modular bioretention tree; field study; tree-pit
Issue Date: 30-Jun-2021
Publisher: MDPI
Citation: NEO TECK HENG, FANG YEE LIM, BRANDON LEE CHUAN YEE, ONG SAY LEONG, HU JIANGYONG, GUO HUILING (2021-06-30). Pilot and Field Studies of Modular Bioretention Tree System with Talipariti tiliaceum and Engineered Soil Filter Media in the Tropics. Water 13 (1817) : 1-29. ScholarBank@NUS Repository. https://doi.org/doi.org/10.3390/w13131817
Abstract: Stormwater runoff management is challenging in a highly urbanised tropical environment due to the unique space constraints and tropical climate conditions. A modular bioretention tree (MBT) with a small footprint and a reduced on-site installation time was explored for application in a tropical environment. Tree species used in the pilot studies were Talipariti tiliaceum (TT1) and Sterculia macrophylla (TT2). Both of the MBTs could effectively remove total suspended solids (TSS), total phosphorus (TP), zinc, copper, cadmium, and lead with removal efficiencies of greater than 90%. Total nitrogen (TN) removal was noted to be significantly higher in the wet period compared to the dry period (p < 0.05). Variation in TN removal between TT1 and TT2 were attributed to the nitrogen uptake and the root formation of the trees species. A field study MBT using Talipariti tiliaceum had a very clean effluent quality, with average TSS, TP, and TN effluent EMC of 4.8 mg/L, 0.04 mg/L, and 0.27 mg/L, respectively. Key environmental factors were also investigated to study their impact on the performance of BMT. It was found that the initial pollutant concentration, the dissolved fraction of influent pollutants, and soil moisture affect the performance of the MBT. Based on the results from this study, the MBT demonstrates good capability in the improvement of stormwater runoff quality.
Source Title: Water
URI: https://scholarbank.nus.edu.sg/handle/10635/200690
ISSN: 20734441
DOI: doi.org/10.3390/w13131817
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