hydraulic profiling Articles

  • Uncertainty in design flood profiles derived by hydraulic modelling

    The scientific literature has widely shown that hydraulic modelling is affected by many sources of uncertainty (e.g. model structure, input data, model parameters). However, when hydraulic models are used for engineering purposes (e.g. flood defense design), there is still a tendency to make a deterministic use of them. More specifically, the prediction of flood design profiles is often based ...


    By IWA Publishing

  • Ramah NM Project Profile 0409

    Background The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter (mg/L). ...

  • Geneseo Hills EPA Project Profile

    Background AdEdge Technologies Inc. (AdEdge) was selected in 2007 by the U.S. EPA and the host site in Round 2a Arsenic Demonstration Program to implement a turnkey arsenic treatment for the Geneseo Hills Community in Geneseo, Il. The Geneseo Hills water system is served by one well with a design flow of 200 gpm, with a backup well. The well provides potable water for a community with 190 ...

  • Hydraulic modeling and water quality monitoring

    Untitled Document The 2004 IMTech conference held in Baltimore, Maryland, April 18-20, attracted hundreds of water professionals interested in the application of IT solutions in water supply and distribution ...


    By Innovyze

  • Shredder for solid and thick-walled profiles and pipes

    NEUE HERBOLD Maschinen- und Anlagenbau GmbH, Sinsheim, (www.neue-herbold.com), extends their machinery range by a new 4-shaft shredder with force feeding system. The 4-shaft shredder type HZR 1300/4 is able to size-reduce solid chunks and start-up lumps, as well as thick-walled profiles and pipes up to a diameter of 1200 mm x 1200 mm and up to a length of 6000 mm. The size ...

  • Measuring the Dispersion Coefficient with Acoustic Doppler Current Profilers

    Abstract: A method is evaluated for estimating the longitudinal dispersion coefficient K from velocities and bathymetry measured with an acoustic Doppler current profiler #1;ADCP. If shear dispersion controls the mixing, the dispersion coefficient can be estimated from measurements of velocity and depth in a cross section. The dispersion coefficient has typically been measured by costly and ...


    By Teledyne RD Instruments

  • Integrating GIS and Hydraulic Modelling in Urban and Rural Applications

    Overview In the UK, numerical Hydraulic Modelling of the urban environment, water networks and rivers plays a vital role in providing the UK Water Industry with solutions for protecting the environment, meeting UK Government and European Regulations, meeting OPEX and CAPEX business targets, and improving the efficiency of Water Companies in managing their assets. Similarly, the UK water ...


    By Innovyze

  • Numerical analysis of hydraulic jumps using OpenFOAM

    The present paper deals with a hydraulic jump study, characterization and numerical modeling. Hydraulic jumps constitute a common phenomenon in the hydraulics of open channels that increases the shear stress on streambeds, so promoting their erosion. A three-dimensional computational fluid dynamics model is proposed to analyze hydraulic jumps in horizontal smooth rectangular prismatic open-air ...


    By IWA Publishing

  • Project profile - City of Wellman, Texas arsenic treatment system

    Background The City of Wellman, Texas (Wellman) applied to the U.S. Environmental Protection Agency (USEPA) to participate in the arsenic treatment demonstration program for Round 2 and was selected. Wellman has five water-supply wells which pump water to a 110,000 gallon storage tank. Water-quality analyses revealed that arsenic concentrations exceeded the new maximum contaminant level ...

  • Project profile - quail ridge prescott, AZ arsenic treatment system

    Background The Quail Ridge Community owns and operates the Quail Ridge Community water system located near Prescott, AZ. The water system is served by two wells that provide drinking water for the community’s residents at a maximum of 160 gallons per minute (gpm) with an approximate arsenic concentration of 13 parts per billion (ppb). After a successful pilot, the site was able to ...

  • Project profile - Spring Canyon Ranch Quemado, New Mexico

    Background Spring Canyon Ranch, LLC operates a community water system located in Quemado, New Mexico. Two water supply wells provide potable water to approximately 120 service connections. Groundwater enters the treatment system at approximately 40 gallons per minute (gpm) with arsenic concentrations of about 137 parts per billion (ppb). The EPA MCL for arsenic requires ...

  • Project profile - Ramah Pine Hill water system Ramah, New Mexico

    Background The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter ...

  • Project profile - Yucca Mountain project, Nevada arsenic treatment system

    Background Wells J-12 and J-13 are located in Area 25 of the Nevada Test Site near Mercury, Nevada. These wells supply potable water for the Yucca Mountain Project. Water-quality analyses revealed that arsenic concentrations exceeded the new maximum contaminant level (MCL). Before choosing a technology, the site manager, Bechtel SAIC, contracted with Dr. Dennis A. Clifford, ...

  • Project profile - Mettawee Community School - arsenic treatment West Pawlet, Vermont

    Background In the summer of 2004, AdEdge Technologies, Inc. was selected by the Mettawee Community School to supply and install an arsenic treatment system for treating water serving the school and facilities. The elementary school site is located on the west side of the state near the New York border. This was the first system utilizing Granular Ferric Oxide (GFO) adsorption technology ...

  • Nakoma Brook flood & hydraulic analysis & engineering study Sloatsburg, New York

    Performed Hydrologic Studies and Hydraulic Engineering Investigations and Designs for the Nakoma Brook Watershed located in Western Rockland and Southeastern Orange Counties, encompassing over 8 square miles. The study area focus was in the Village of Sloatsburg, NY at the intersection of Route 17 and Eagle Valley Road. Flood Control analyses were conducted using USACOE's HEC-1 and HEC-2 computer ...


    By GEA ENGINEERING

  • Effect of urban waste compost application on soil near-saturated hydraulic conductivity

    Received for publication February 22, 2008. Compost application tends to increase soil fertility and is likely to modify soil hydrodynamic properties by acting on soil structural porosity. Two composts, a municipal solid waste compost (MSW) and a co-compost of green wastes and sewage sludge (SGW), have been applied every other year for 6 yr to cultivated plots located on a silt loam soil in the ...

  • Hydraulic modeling - Bethel Park Municipal Authority - Case Study

    Treatment plant hydraulics is often overlooked as one of the most important aspects of treatment plant design, especially in plant upgrade scenarios where retrofitting new equipment or processes into the existing treatment train will create additional hydraulic restrictions.  Many existing plants already have a minimal amount of head available for passing peak flows through the system, which ...


    By Innovative Hydraulics

  • Selective biodegradation of naphthenic acids and a probable link between mixture profiles and aquatic toxicity

    The toxicity of oil sands process‐affected waters (OSPW) from the Athabasca Oil Sands (AOS) in northern Alberta, Canada, is related to a relatively persistent group of dissolved organic acids known as naphthenic acids (NAs). Naphthenic acids are a complex mixture of carboxylic acids, with a general formula CnH2n+ZO2, where n indicates the carbon number and Z specifies the number of rings in ...


    By John Wiley & Sons, Ltd.

  • Measurement of flow velocity profiles in tank structures using the prototype device OCM Pro LR

    Generally, studies investigating the treatment efficiency of tank structures for storm water or waste water treatment observe pollutant flows in connection with conditions of hydraulic loading. Further investigations evaluate internal processes in tank structures using computational fluid dynamic (CFD) modelling or lab scale tests. As flow paths inside of tank structures have a considerable ...


    By IWA Publishing

  • Uncertainty and sensitivity analysis of water transport modelling in a layered soil profile using fuzzy set theory

    A methodology based on fuzzy set theory is presented to express imprecision of input data in a non-probabilitic sense. Imprecision may originate from indirect measurements, estimation routines, subjective interpretation, and expert judgement of available information. A numerical finite difference solution scheme was chosen to solve one-dimensional steady-state water flow in the unsaturated zone ...


    By IWA Publishing

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