stormwater runoff treatment Articles

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 ...

Mar. 1, 2011

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 ...

Feb. 1, 1999

By IWA Publishing

Dynamic stormwater treatment unit model for micropollutants (STUMP) based on substance inherent properties

Modelling the removal of micropollutants (MPs) in stormwater treatment systems is essential in a context that is characterized by a general lack of measurements. This paper presents an innovative dynamic model for the prediction of the removal of MPs in stormwater treatment systems (Stormwater Treatment Unit model for Micro Pollutants—STUMP). The model, based on a conceptual model of ...

Aug. 1, 2010

By IWA Publishing

An application of Austrian legal requirements for CSO emissions

The Austrian standard for designing combined sewer overflow (CSO) detention basins introduces the efficiency of the combined sewer overflows as an indicator for CSO pollution. Additionally criteria for the ambient water quality are defined, which comprehend six kinds of impacts. In this paper, the Austrian legal requirements are described and discussed by means of hydrological modelling. This is ...

Jan. 1, 2011

By IWA Publishing

Dual Porosity Filtration for treatment of stormwater runoff: first proof of concept from Copenhagen pilot plant

Dual Porosity Filtration (DPF) is designed for sedimentation-based removal of suspended solids (SS) and adsorption-based removal of dissolved contaminants from stormwater runoff. It consists of shallow (10 mm) low-porosity layers for contaminant retention, interlaid with high-porosity layers for horizontal, gravity-driven flow. First proof of concept was obtained in a 10 m by 60 m pilot plant ...

Jan. 1, 2011

By IWA Publishing

Performance of a pilot-scale constructed wetland for stormwater runoff and domestic sewage treatment on the banks of a polluted urban river

To examine the performance of a constructed wetland system on stormwater runoff and domestic sewage (SRS) treatment in central east China, two parallel pilot-scale integrated constructed wetland (ICW) systems were operated for one year. Each ICW consisted of a down-flow bed, an up-flow bed and a horizontal subsurface flow bed. The average removal rates of chemical oxygen demand (CODCr), total ...

Apr. 10, 2014

By IWA Publishing

Balancing growth and conservation - Precast concrete manholes become part of the stormwater solution

When American Fork, Utah, decided to approve construction of a 175-acre commercial center, the city engineers had to consider the environmental effect it would have on a 45-acre wetland right next door. Under the EPA´s Phase II Storm Water Rules, adapted in late 1999, almost any city large enough to require a storm sewer system must balance growth with the environmental impacts of ...

Jan. 5, 2005

By BaySaver Technologies, 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 ...

Jan. 1, 2011

By IWA Publishing

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 ...

Jul. 24, 2015

By IWA Publishing

A tiered, integrated biological and chemical monitoring framework for contaminants of emerging concern (CECs) in aquatic ecosystems

The chemical‐specific risk‐based paradigm that informs monitoring and assessment of environmental contaminants does not apply well to the many thousands of new chemicals that are being introduced into ambient receiving waters. We propose a tiered framework that incorporates bioanalytical screening tools and diagnostic non‐targeted chemical analysis to more effectively monitor for contaminants ...

Oct. 1, 2015

By John Wiley & Sons, Ltd.

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 ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Modeling of Sedimentation in Stormwater Detention Basins

ABSTRACTTo minimize the non-point source pollution from roadway surface, the Texas Department of Transportation (TxDOT) initiated a research project for design of a small footprint non-proprietary detention basin, which consists of pipes and box culvert sections with specialized inlet and outlet system. A conceptual model was developed to estimate particle removal efficiency of the rectangular ...

Oct. 22, 2006

By Water Environment Federation (WEF)

The influence of particle size on the first flush strength of urban stormwater runoff

The presence of a first flush (FF) of suspended solids (SS) in stormwater runoff has important implications for the design of treatment facilities, as does the particle size of solids. Whilst numerous studies have examined the FF behaviour of SS, few have disaggregated FF trends by particle size. In this study, the FF behaviour of SS was investigated in five size ranges, sampled from an urban ...

Jul. 3, 2017

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 ...

May 20, 2014

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 ...

Aug. 26, 2015

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. ...

Jan. 18, 2012

By Dungeness Environmental Solutions, Inc. (DESI)

With BOD, What You See is Often Not What You Get: The Difficulty with Accurate Testing for BOD in Industrial Stormwater Runoff.

Biochemical oxygen demand (BOD) is a measure of the amount of dissolved oxygen used by microorganisms to break down organic material in a sample of water. As they do so, these microorganisms deplete the amount of dissolved oxygen in the water, which can be deadly for aquatic species like fish that rely on dissolved oxygen to live. Because of this hazard to aquatic life, BOD is considered an ...

Mar. 18, 2020

By Newterra

Preliminary investigation into the pollution reduction performance of swales used in a stormwater treatment train

Permeable pavements have been shown to be effective stormwater treatment devices that can greatly reduce surface runoff and significantly improve the quality of stormwater runoff in urban areas. However, the potential problems with sediment clogging and consequent maintenance requirements have been identified as the main barriers to more widespread adoption of permeable pavements in urban ...

Mar. 13, 2014

By IWA Publishing

Full Scale Evaluation of UpflowTM Filter - A Catch Basin Insert for the Treatment of Stormwater at Critical Source Areas

ABSTRACTStormwater runoff from critical source areas, such as parking lots, vehicle fueling and maintenance stations, and public works storage areas, may contain pollutant loadings of hydrocarbons, toxic trace metals, nutrients, pathogens, and/or other toxicants and pollutants that are greater than the loadings of “normal” stormwater runoff (Bannerman, et al. 1993;Pitt, et al. 1995; Claytor and ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Near and Dear: Revitalizing Titusville - Case Study

Working in conjunction with the City of Titusville and Ramage Contracting of Mims, FL, EcoSense International (ESI) has designed a new DeNitra-Vault for the Titus Landings Shopping Center, which is currently under construction. The Titus Landing Shopping Center has had to overcome many snags on its road to fruition and the stormwater improvements incorporated into the design are no ...

Jul. 8, 2016

By EcoSense International

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