stormwater runoff treatment Articles

  • Meeting New Demands: Treating Urban Runoff

    Dry weather runoff from urban creeks is a typical source of bacteria in coastal California. Beyond the Golden State, bacterial contamination of oceans, lakes and streams concerns many municipalities as well as they strive to reach increasingly stringent urban runoff and stormwater regulatory requirements. An innovative solution—ozone treatment for urban runoff—applied at two California beaches ...

  • The importance of wastewater treatment in shipbuilding industry

    There is a huge amount of wastewater outcome during the ship production and repair processes in shipyards. Especially production processes (blasting, welding, painting, machining and metalworking), repair processes (hull washing) and painting processes (paint removal) create a huge amount of wastewater. In addition to these, open area processes of ship repair and maintenance cause stormwater ...


    By Inderscience Publishers

  • Catchment `greening` using stormwater in Adelaide, South Australia

    ABSTRACTThe paper reviews the goals of stormwater management adopted in Adelaide and declares a focus on harvesting of stormwater to replace mains water in irrigating areas landscaped with grass, flower beds and shrubs. Four categories of catchments are recognised according to their levels of pollution production - roof runoff and 'low', 'medium' and 'high' pollution runoff surfaces. Four case ...


    By IWA Publishing

  • Application of a risk management framework to a drinking water supply augmented by stormwater recharge

    The Blue Lake is an important water resource for the city of Mount Gambier and the surrounding region, primarily as the drinking water supply source, but also as a tourist attraction. Mount Gambier’s stormwater is discharged directly via drainage wells into the unconfined, karstic Gambier Limestone aquifer, which in turn provides the majority of recharge to Blue Lake. Discharge of urban runoff to ...


    By IWA Publishing

  • In-situ performance of a passive treatment system for metal source control

    ABSTRACTUrban stormwater often contains high levels of traffic-generated metal elements and particulates. These constituents are transported by stormwater runoff to surficial soils, drainage systems and receiving waters. This paper summarizes the in-situ field-scale performance of a passive treatment system called a partial exfiltration trench (PET) for source control of these constituents. For ...


    By IWA Publishing

  • Brightwater treatment plant - Case Study

    Active Treatment and Certification To meet the stringent state stormwater run-off standards during construction of the Brightwater Conveyance and Wastewater Treatment Plant Project in Woodinville, WA one active treatment system using 1% ChitoVan Chitosan Acetate was needed. Dungeness Environmental worked alongside Northwest Construction to gain approval for CESF treatment through Ecology. ...

  • Physical design optimization of an urban runoff treatment system using Stormwater Management Model (SWMM)

    The study presented the application of Stormwater Management Model (SWMM) in determining the optimal physical design properties of an established low impact development (LID) system treating road runoff. The calibration of the model was based on monitored storm events occurring from May 2010 to July 2013. It was found that the total suspended solids was highly correlated with stormwater runoff ...


    By IWA Publishing

  • Improving sediment removal in standard stormwater sumps

    Standard sumps are an important component of our stormwater drainage system. Recently they have received significant attention as a stormwater pre-treatment device to remove sediment from stormwater runoff. The objective of this research is to explore some simple structures to be installed inside standard sumps to improve sediment removal efficiency. A number of structures were tested and two ...


    By IWA Publishing

  • Influence of the land use pattern on the concentrations and fluxes of priority pollutants in urban stormwater

    This paper presents the results of the concentrations (μg/L) and fluxes (g/ha) of priority substances in stormwater from three watersheds with different land use patterns (namely, residential, urban dense, high urban density). Samples were collected at the outlet of these watersheds. Thirteen chemical groups were investigated corresponding to 88 individual substances before treatment. Results ...


    By IWA Publishing

  • BNSF skykomish - Case Study

    Passive Pre-Treatment with ChitoVan Cartridges Followed by CESF with 1 % ChitoVan Cleanup of a former railway fuel and maintenance facility in Skykomish, WA is currently underway. Nearby environmentally sensitive waterways have increased the need for responsible management of contaminated waters. Two Chitosan-Enhanced Sand Filtration systems have been implemented by Clear Water Compliance ...

  • Integrated urban water management in commercial buildings

    Monitoring results are presented as an annual water balance from the pioneering Landcare Research green building containing commercial laboratory and office space. The building makes use of harvested roof runoff to flush toilets and urinals and irrigate glasshouse experiments, reducing the demand for city-supplied water and stormwater runoff. Stormwater treatment devices also manage the runoff ...


    By IWA Publishing

  • Wire manufacturing facility - Case Study

    Bench-Scale Stormwater Treatment Study A large wire manufacturer in Washington State asked Dungeness Environmental to perform a treatability study on their stormwater run-off. The run-off requires remediation prior to discharge for turbidity, zinc, copper and lead concentrations. Dungeness performed an initial screening test in the lab simulating a variety of water treatment techniques for ...

  • Maintenance of a Rainstore3 Stormwater Storage Chamber

    Invisible Structures, Inc. recommends that stormwater be pretreated prior to discharging into the chambers to avoid foreign matter accumlation inside the chamber. This can be accomplished by a variety of techniques or products. Some examples are: Short Term Storage (Detention Basin) “Zero” maintenance – the Preferred Method: Use a ...


    By Invisible Structures, Inc.

  • Inflow based investigations on the efficiency of a lamella particle separator for the treatment of stormwater runoffs

    The present design of stormwater tanks is based on the creation of storage volume to retain stormwater and the prevention or reduction of stormwater overflows. The treatment of stormwater is often improved with mechanical equipment. The general layout rules do usually not include the appropriate choice of design inflow related to the chosen treatment equipment. In the following investigations it ...


    By IWA Publishing

  • City of Santa Monica Airport Watershed Management Plan

     ABSTRACT The City of Santa Monica implements best management practices (BMPs) to address urban stormwater runoff and uses a “hierarchy” of BMPs to prioritize implementation based on the principles of protecting public safety and the environment, maximizing environmental benefits, and minimizing costs. The hierarchy of BMPs includes the following (in order of priority): 1) harvesting, ...

  • Understanding the factors influencing the removal of heavy metals in urban stormwater runoff

    In this research, an infiltration trench equipped with an extensive pretreatment and filter bed consisting of woodchip, sand and gravel was utilized as a low impact development technique to manage stormwater runoff from a highly impervious road with particular emphasis on heavy metal removal. Findings revealed that the major factors influencing the removal of heavy metals were the ...


    By IWA Publishing

  • Comparison of the treatment performance of hybrid constructed wetlands treating stormwater runoff

    This study was conducted to compare the treatment performance of two hybrid constructed wetlands (CWs) in treating stormwater runoff. The hybrid CWs were composed of a combination of free water surface (FWS) and horizontal subsurface flow (HSSF) CWs. Based on the results, strong correlation exists between potential runoff impacts and stormwater characteristics; however, the low correlations ...


    By IWA Publishing

  • Cytotoxic and genotoxic activities of waters and sediments from highway and parking lot runoffs

    The genotoxicity of water and sediment samples from stormwater treatment systems and water from urban highway runoff was tested in the Salmonella/microsome assays with Salmonella typhimurium, micronucleus assay (Trad-MN) with plants and with human-derived liver cells (HepG2), or comet assay with HepG2. Cytotoxicity of water samples was studied using either reactive oxygen ...


    By IWA Publishing

  • Improved wet weather wastewater influent modelling at Viikinmäki WWTP by on-line weather radar information

    Municipal wastewater treatment plant (WWTP) influent is typically dependent on diurnal variation of urban production of liquid waste, infiltration of stormwater runoff and groundwater infiltration. During wet weather conditions the infiltration phenomenon typically increases the risk of overflows in the sewer system as well as the risk of having to bypass the WWTP. Combined sewer infrastructure ...


    By IWA Publishing

  • Alkylphenols in atmospheric depositions and urban runoff

    A sampling campaign was conducted in order to determine alkylphenol (AP) concentrations in stormwater as well as potential AP sources in suburban environments. An analytical procedure was developed to quantify APs in bulk atmospheric deposition, building runoff, road runoff and stormwater. Both nonylphenols and octylphenols could be quantified in each sample. Median stormwater concentrations ...


    By IWA Publishing

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