sediment runoff Articles

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 ...

Mar. 14, 2016

By IWA Publishing

Rainwater harvesting (RWH) systems have the unique ability to contribute to stormwater management goals via mitigation of runoff volumes and peak flow rates. Additionally, collecting and storing runoff via RWH systems can potentially provide water quality benefits due to physical and chemical processes that occur within the storage tank. This study quantified the water quality improvement ...

Apr. 14, 2014

By IWA Publishing

Sedimentation structures are measures, which purify the surface runoff with the principle of sedimentation. The separation of solid from rainwater discharge (divided sewer system) can be carried out through: grit chamber rainwater sedimentation tank vortex separator system The dimensioning of plants, that work with sedimentation is done according to the allowed ...

May 30, 2012

By IWA Publishing

Received for publication January 16, 2009. Crop residue removal for expanded uses such as feedstocks for cellulosic ethanol production may increase loss of sediment and nutrients in runoff. We assessed on-farm impacts of variable rates of residue removal from no-till winter wheat (Triticum aestivum L.) and plow till grain sorghum [Sorghum bicolor (L.) Moench] on sediment, soil organic carbon ...

Dec. 1, 2009

By Soil Science Society of America

A hydro-environmental model chain in the Doam dam basin, Korea, was developed for an impact assessment under the Intergovernmental Panel on Climate Change's A1B scenario. The feasible downscaling scheme composed of an artificial neural network (ANN) and non-stationary quantile mapping was applied to the GCM (Global Climate Model) output. The impacts under climate and land use change scenarios ...

Oct. 28, 2016

By IWA Publishing

The present study has investigated the possibility to apply electrochemical oxidation in the treatment of polycyclic aromatic hydrocarbon (PAHs) pollutants in water. The reaction kinetics of naphthalene, fluoranthene, and pyrene oxidation have been studied in a batch recirculation experimental setup applying a commercial one-compartment cell of tubular design with Ti/Pt90-Ir10 anode. The rate of ...

Apr. 1, 2010

By IWA Publishing

Despite increased attention and demand for the adoption of agroforestry practices throughout the world, rigorous long-term scientific studies confirming environmental benefits from the use of agroforestry practices are limited. The objective of this study was to examine nonpoint-source pollution (NPSP) reduction as influenced by agroforestry buffers in watersheds under grazing and row crop ...

Feb. 22, 2011

By Soil Science Society of America

Untitled Document ...

Oct. 1, 2001

By Southern California Coastal Water Research Project Authority (SCCWRP)

A study was performed using a settling column to remove mercury (Hg) from road runoff. The emphasis was placed on the relationship between Hg removal and critical settling velocities, as well as the distribution of total suspended solids (TSS). The impact of rainfall characteristics and temperature on Hg removal was also discussed. Results indicated that Hg removal was significant within the ...

Jan. 1, 2012

By IWA Publishing

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)

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 ...

Mar. 21, 2016

By IWA Publishing

Little is known about pyrethroid fate and effects in estuarine and marine environments. In the present study, the extent and magnitude of pyrethroids in coastal embayments of the Southern California Bight (SCB), USA, were assessed. Using a stratified probabilistic design, 155 sediment samples were collected from four embayment habitats (estuaries, marinas, open bays, and ports) and analyzed for ...

May 3, 2012

By John Wiley & Sons, Ltd.

Received for publication December 18, 2008. The goal of this study was to construct a wetland that would detain runoff from a 162-ha watershed for the purposes of improving water quality. The volume of runoff that needed to be detained was determined to be that amount coming off the 162-ha watershed consisting of 146 ha of cultivated crop land and 16 ha of pasture that exceeded the amount that ...

Dec. 1, 2009

By Soil Science Society of America (SSSA)

These two words might make you sleepy: stormwater management. But they should make you scared. Or, if a new study can help shake things up, hopeful. Runoff carrying oil, salt, fertilizer, sediment and other pollutants is a top threat to lakes across the U.S., and several factors — including rising population, growing cities and changing climate — are ...

Nov. 27, 2015

By Ensia

Water pollution and water shortage are two of the most important environmental problems in Beijing, China. Water quality of rainfall from July to August 2011 and runoff from a felt roof and an asphalt road were analyzed chemically and further investigated because these are potential sources for augmenting city supplies. Results indicate that chemical oxygen demand (CODCr), total phosphorus (TP), ...

Apr. 10, 2014

By IWA Publishing

Excess phosphorus runoff and emissions from urban areas and croplands, animal feedlots, sewage treatment plants, and combustion of fossil fuels has been blamed for the dead zone in the Gulf of Mexico, toxic algal blooms in Lake ...

Aug. 27, 2015

By Ensia

ABSTRACTGrass swales are a vegetated stormwater management technology that can remove surface runoff contamination through sedimentation, filtration by the grass blades, infiltration to the soil, and likely some biological processes. Two full-scale grass swales in the median of a four-lane highway were monitored during 18 storm events to characterize the overall performance of grass swales as a ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Since 1990, construction sites larger than 5 acres and municipal separate storm sewer systems (MS4s) serving populations over 100,000 have had to  abide by the rules of the Environmental Protection Agency’s (EPA) National Pollutant Discharge Elimination System (NPDES) Storm Water Program. This program was put in place to protect the country’s waterways from sedimentation buildup. ...

May 24, 2016

By FINN Corporation

In this study, the separation behaviors of particles in highway rainfall runoff using a Ø7.5 cm hydrocyclone were examined. The volume fraction and the total suspended solids concentrations in the overflow and underflow from the hydrocyclone were analyzed. The results indicated that the overflow volume fraction increased with increasing operational pressure, but decreased with decreasing ratio of ...

Aug. 1, 2010

By IWA Publishing

Underground Stormwater Treatment Train at James Madison University Recreation Facility Harrisonburg, Virginia - James Madison University (JMU) serves 18,000 students on its 680-acre campus and has begun construction ...

Nov. 16, 2011

By Contech Engineered Solutions LLC