Experimental and mathematical modelling study on clogging behaviour of bioretention systems Online publication date: Thu, 07-May-2015
by Monzur A. Imteaz; Thien Nguyen; Kelvin Kuok
International Journal of Hydrology Science and Technology (IJHST), Vol. 5, No. 1, 2015
Abstract: This paper presents investigations on clogging effect of bioretention systems within a semi-longer period. Two bioretention systems were selected within Melbourne metropolitan area; one being recent and the other about 6 years old. Peak discharge reduction capabilities of the bioretention systems were assessed through measuring discharges of water inflow and outflow to and from the systems. It was found that the average peak discharge reduction capacity of the new system is 86%, whereas for the old system it is 89%. Model for urban stormwater improvement conceptualisation (MUSIC) models were developed to replicate the discharge measurements and it was found that the MUSIC's estimations are very close to the measurements. MUSIC simulations regarding expected pollutants generations from the associated catchments and pollutants removals through both the bioretention systems are presented in details.
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