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

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    12648634_B2_2014 09 09 ICUD Conference - Pollutant Load Modelling.pdf (450.6Kb)
    Type of Content
    Conference Contributions - Published
    UC Permalink
    http://hdl.handle.net/10092/10946
    
    Publisher
    University of Canterbury. Civil and Natural Resources Engineering
    Related resource(s)
    http://www.13icud2014.com/programme.php
    Collections
    • Engineering: Conference Contributions [2307]
    Authors
    Charters, F.
    O'Sullivan, A.
    Cochrane, T.
    show all
    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 Engineering
    09 - Engineering::0905 - Civil Engineering::090509 - Water Resources Engineering
    Rights
    https://hdl.handle.net/10092/17651

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    • Stormwater Contaminant Load Monitoring (2016) and Modelling of the Heathcote Catchment and Six Representative Subcatchments 

      O'Sullivan AD; Cochrane TA; Charters F (University of Canterbury, 2017)
      Adverse effects from sediment and heavy metals have been observed in the Heathcote catchment, which is diverse in its land use activities. Stormwater management improvements are planned for the catchment through the Heathcote ...
    • Modelling stormwater management options for enhancing water quality of urban streams 

      Charters, F.; Cochrane, T.A.; O’Sullivan, A. (University of Canterbury. Civil and Natural Resources Engineering, 2014)
      The majority of Christchurch’s stormwater has historically been discharged untreated directly into urban surface waterways. These receiving waterways have become adversely affected by the contaminants carried in the ...
    • Predicting Event-Based Sediment and Heavy Metal Loads in Untreated Urban Runoff from Impermeable Surfaces 

      Charters, Frances J.; Cochrane, Thomas A.; O'Sullivan, Aisling D. (2020)
      Understanding the amount of pollutants contributed by impermeable urban surfaces during rain events is necessary for developing effective stormwater management. A process-based pollutant load model, named Modelled Estimates ...
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