dispersant system Articles

  • Advancements in Scaling Calculations and an in depth look at Antiscalant dosing for stressed waters and high recovery systems

    Abstract Over the past few decades the Reverse Osmosis (RO) industry has observed an increase in applications in challenging waters. Water sources that were never considered suitable for RO are now commonplace, including municipal waste streams, industrial waste, and even mining waste. Furthermore, regulatory restrictions, environmental obligations, solid waste expenses, and water supply ...


    By Avista Technologies

  • Regulatory dispersion modelling in Finland

    We present a review of regulatory atmospheric dispersion models and their application to environmental impact assessment (EIA) in Finland. The following regulatory models are available: the urban dispersion modeling system, models for dispersion of vehicular pollution, the air pollution information system, and the dispersion model for odorous compounds. All of these models are connected to a ...


    By Inderscience Publishers

  • Particle Dispersion for Size Analysis

    Panicle size analysis is a vital analytical tool in the pharmaceutical industry. The results can be used to meet safety and quality specifications and provide information for product development and manufacturing. Modern techniques have made determining the particle size of a material quick and convenient, but many factors can influence the quality of data obtained. While particle size analysis ...


    By Particle Technology Labs

  • Bioethanol dispersing – world challenge

    Bioethanol dispersing finds broad application in a national economy as solvent, also it is applied in production of a butadiene, as fuel for rocket engines, car engines, antifreeze, etc., it is an important intermediate product of organic synthesis (in production of esters, celluloid, artificial silk, ethyl aldehyde, acetic acid, chloroform, ethyl oxide and other products). Ethanol contains ...


    By GlobeCore GmbH

  • Development of an integrated system for air pollutant dispersion modelling

    A complex expert system for air pollutant dispersion modeling (ScalEx) is currently being developed at Faculty of Technology and Metallurgy in Belgrade. The project goal is to develop a powerful software system as an engineering toolbox for modelling air pollutant dispersion under various conditions and terrain configurations. ScalEx is planned to be an integrated software system of the new ...


    By Inderscience Publishers

  • Any liquid dispersing without foliation

    Dispersion is a process when small parts of one substance are distributed in thin liquid of another substance, without being dissolved in it. Such fluid call dispersing. In dispersion it is thin parts of substance is distributed in liquid part over time is depositing, and there comes the partial foliation. Therefore components of dispersion should be passed through GlobeCoreblending system ...


    By GlobeCore Blending

  • Any liquid dispersing without foliation

    Dispersion is a process when small parts of one substance are distributed in thin liquid of another substance, without being dissolved in it. Such fluid call dispersing. In dispersion it is thin parts of substance is distributed in liquid part over time is depositing, and there comes the partial foliation. Therefore components of dispersion should be passed through GlobeCoreblending system ...


    By GlobeCore Blending

  • Biodiesel dispersion replaces diesel fuel

    Is that possible to find substitution to traditional diesel fuel? Until recently these question were asked by ecologists and diesel cars owners who are taking hard time in periodic rises in price of fuel. With the event of the biodiesel development the situation cleared up. It became clear to all that cheap, qualitative and environmentally friendly biodiesel was born and started winning surely ...


    By GlobeCore Blending

  • Biodiesel dispersion replaces diesel fuel

    Is that possible to find substitution to traditional diesel fuel? Until recently these question were asked by ecologists and diesel cars owners who are taking hard time in periodic rises in price of fuel. With the event of the biodiesel development the situation cleared up. It became clear to all that cheap, qualitative and environmentally friendly biodiesel was born and started winning surely ...


    By GlobeCore Blending

  • Validation of the Demokritos dispersion modelling system based on the Indianapolis experiment

    To assess the ability of a model to simulate atmospheric dispersion, its performance must be tested using data from real field experiments. This paper presents the results of a validation study of the atmospheric dispersion model Dispersion over Complex Terrain (DIPCOT) against data from the Indianapolis field experiment. Three different modules of the dispersion code are examined a puff model, a ...


    By Inderscience Publishers

  • Assessing meteorological uncertainties in dispersion forecasts using a NWP Ensemble Prediction System

    The use of ensembles of meteorological forecasts is explored in the context of dispersion modelling for emergency-response applications such as nuclear accidents or chemical releases. Specification of meteorology is often a major source of uncertainty in dispersion predictions. The ensemble methodology, routinely used in Numerical Weather Prediction (NWP), is followed in which multiple ...


    By Inderscience Publishers

  • The Atmospheric Dispersion Modelling System (ADMS): comparisons with data from the Kincaid experiment

    In order to test the ability of a model its results must be compared with experimental data; hence validation work is an essential part of the development of any model. This paper presents the results of a validation study of the UK Atmospheric Dispersion Modelling System (UK-ADMS) version 1.06, a short-range dispersion model, against the results of the Kincaid field experiment. Predictions of ...


    By Inderscience Publishers

  • Dispersion modelling: a tool for local air quality management

    A local air quality management system, and the use of dispersion modelling as a tool for the system, are described. The Turkish town of Gehze is used as a model.Keywords: air pollution, air quality management, dispersion modelling, ...


    By Inderscience Publishers

  • A new microturbine-based dispersed generation scheme

    Almost all of the commercial microturbine-based dispersed generation systems today are composed of a high-speed permanent-magnet alternator and a diode rectifier-PWM inverter pair. A dispersed generation scheme made up of a microturbine, an induction generator, and a diode rectifier-PWM inverter pair is introduced in this paper. A complete model for the self-excited squirrel-cage induction ...


    By Inderscience Publishers

  • Raman frequency dispersion studies of substituted polythiophene films

    Styryl substituted terthiophene species have been used to produce neutral polythiophene species which show distinct Raman frequency dispersion. The polythiophene line B band shows dispersion values of: -0.12, -0.07, -0.1 cm−1 nm−1 for the phenyl, para-methoxy phenyl and para-cyano phenyl systems respectively. This is smaller than the dispersion values reported for polythiophene presumably because ...


    By Inderscience Publishers

  • An urban scale model for pollutant dispersion in Rome

    A Gaussian model software (Atmospheric Dispersion Model System?ADMS-Urban) is used to forecast the carbon monoxide concentrations in the Urban Boundary Layer (UBL) of the city of Rome, Italy. The simulations refer to 14 days during 2002. Two data set inputs were considered in order to evaluate the urban background concentration and the effects of the main roads surrounding the monitoring ...


    By Inderscience Publishers

  • Comparison of the Polish regulatory dispersion model with AERMOD

    Implementation of the 96/62/EC air quality directive in Poland imposes new requirements that cannot be met by the present Polish regulatory climatological dispersion model that is mandatory in emission permit procedures. For use in the air quality management system, newer models have been recommended. This inevitably brings questions regarding consistency between models used for both the ...


    By Inderscience Publishers

  • Numerical model of urban aerodynamics and pollution dispersion

    For analysis of atmospheric processes in the urban environment, the microscale meteorological and dispersion model M2UE is suggested, which takes into account a complex character of aerodynamics in non-uniform urban relief. The three-dimensional version of the model includes a system of Reynolds equations, two-equation k-ε model of turbulence and the 'advection-diffusion' equation to simulate ...


    By Inderscience Publishers

  • Stable dispersions of single-walled carbon nanotubes

    The degree of dispersion of Single-Walled Carbon Nanotubes (SWCNTs) in different solvents is an issue in all studies where applications (in microelectronics, as well as in biological in vitro and in vivo systems) are envisaged. We performed long-term dispersion studies of SWCNTs in four different solvents: phosphate buffer solution (PBS), poly(sodium 4-styrene-sulfonate) (NaPSS), Gum Arabic (GA), ...


    By Inderscience Publishers

  • Modelling dispersion of smoke from wildfires in a Mediterranean area

    We present a modelling system for the estimation of forest fire emissions ( prebolchem-fire ) and their inclusion in the atmospheric composition model BOLCHEM. Emission fluxes have been estimated following the methodology proposed by Seiler and Crutzen (1980) and using MODIS ‘burned area product’. Then they are modulated following the WRAP approach (WRAP, 2005). This approach is also used for ...


    By Inderscience Publishers

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