Modelling Stormwater Contaminant Loads in Older Urban Catchments: Effects of Climate Influences on Selecting Management Options (2014)

Type of Content
Conference Contributions - PublishedPublisher
University of Canterbury. Civil and Natural Resources EngineeringRelated resource(s)
http://www.13icud2014.com/programme.phpCollections
Abstract
An event-based contaminant load model was developed to identify spatial patterns of stormwater total suspended solids (TSS) and heavy metal loads and assess potential reductions in contaminants loads by implementing various stormwater management options. The GIS-Excel based model estimates contaminant loads from an individual storm event based on different contributing impervious surfaces and key climate characteristics (rainfall intensity, duration, pH and antecedent dry days (ADD)). It then calculates the reduction in contaminant loads that could be achieved through source reduction (e.g. green roofs, repainting) as well as from treatment (e.g. raingardens (bioretention basins), wet ponds) applied to different surfaces within the catchment. The model was run for a case study catchment in Christchurch, New Zealand, to identify where ‘hotspots’ occurred for each contaminant. Model simulations of targeted management options were run, which predicted effective reduction of both TSS and heavy metals could be achieved with a strategy of combined source reduction and downstream treatment.
Citation
Charters, F., O'Sullivan, A., Cochrane, T. (2014) Modelling Stormwater Contaminant Loads in Older Urban Catchments: Effects of Climate Influences on Selecting Management Options. Sarawak, Malaysia: 13th International Conference on Urban Drainage, 7-12 Sep 2014. Proceedings, 10pp.This citation is automatically generated and may be unreliable. Use as a guide only.
ANZSRC Fields of Research
09 - Engineering::0905 - Civil Engineering::090508 - Water Quality Engineering09 - Engineering::0905 - Civil Engineering::090509 - Water Resources Engineering
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