scaling Articles

  • [Technical Paper] Biomass Evolution in Full-Scale Drinking Water Filters

    After nearly two-years of work, we could advance our understanding of ATP measurement in drinking water biofilters. I will describe some of the background and key results from the study below – more information is provided in the Journal AWWA December 2016 article. Background of the ...


    By LuminUltra Technologies Ltd.

  • 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

  • London Hotspots for Noise Nuisance Complaints [Infographic]

    As we continues our quest to build up a noise nuisance map of the UK, we recently turned our attention to our fair Capital, London. With 33 boroughs in Greater London, it was always going to be something of a time-consuming task to get the noise complaints data via Freedom of Information (FOI) requests. However, we were pleasantly surprised by the London Local Authorities efficiencies. The vast ...


    By Cirrus Research plc

  • Mechanisms of scale deposition and scale removal in porous media

    Calcium sulfate scaling and scale removal have been studied experimentally and theoretically in a well-defined unconsolidated porous medium. The effects of injection rate, scale concentration and temperature on the rate of scale formation and the rate of its removal are investigated. The results of the experiments are used to develop mechanistic models for the prediction of the scaling process in ...


    By Inderscience Publishers

  • Large-scale application

    Type      HOFGAS®- Ready 2500 (2x) Commissioning      2002 Client      Cleanaway (Pitsea, GB) Situation The 2.8km2 big Pitsea landfill is located 50km east of London. It takes 2 to 3 years until the process of a landfill releases constantly gas. To compensate the initial unsteadiness, the 2 compact units ...


    By Hofstetter BV

  • Large Scale Groundwater Modelling

    The hydrological model LISFLOOD is a spatially-distributed, partially physically-based rainfall-runoff model that has been devised to simulate the hydrological behaviour in large European catchments, with emphasis on predicting floods and droughts. In the model the groundwater component is represented by two interconnected linear reservoirs, with the outflow in some unit of time being ...


  • Scale removal - Case Study

    Water Cooling Towers Operate at Better Efficiency and Lower Maintenance Costs with KDF Water Filter Media "As Seen in Water Quality Products" At TowerKlean™ LLC... KDF Water Filter Media Help with Scale, Algae, Chlorine and Heavy Metal Removal from Water Scale... it's a vicious never-ending problem that can kill the overall efficiency of water-cooling systems or ...


    By KDF Fluid Treatment, Inc.

  • Scale up factory

    Spire Corporation is a leading global solar company providing turnkey solar factories and equipment to manufacture photovoltaic modules and cells. With over 40 years and $100 million in R+D and PV, our years of experience and technical depth put us in a unique position to ensure the success of our customers. Applying this expertise across all product lines, Spire has a rich heritage of utilizing ...


    By Spire Corporation

  • Small-Scale Biosolids Composting

    Cambridge, Ohio retrofitted a portion of its vacuum assisted drying beds into a covered composting facility, processing about 300 dry tons/year of biosolids and wood chips. Like many small communities in an agricultural area, the City of Cambridge, Ohio (pop. 14,000) managed biosolids generated by its 2.25 mgd Water Pollution Control Center (WPCC) via land application on farm fields. “Then ...


    By BioCycle Magazine

  • ADMS–Urban: developments in modelling dispersion from the city scale to the local scale

    Many countries perform national air quality assessments using grid–based numerical air dispersion models, generally referred to as 'regional' models. Advantages of these models include the ability to use temporally and spatially varying meteorology and model chemical reactions over large temporal and spatial scales. These models usually perform reasonably well against rural and urban background ...


    By Inderscience Publishers

  • Sustainability and the local scale: squaring the peg?

    This paper examines the causes of the failure by the Region of Waterloo (Ontario, Canada) to meet its objectives on sustainability. The analysis shows that in such macro matters as sustainability, scale does indeed matter, as do numerous other factors including the degree of trust in interrelations, perceptions and convictions, conflicting interests and competing agendas, the manner in which ...


    By Inderscience Publishers

  • Fragmentation in small-scale confined blasting

    Design of sub-level blasting rounds and optimisation has become more important now when the sizes of the blasting rings get larger. Sufficient fragmentation is one of the key factors, and in confined blasting as in sub-level caving, this influences the mobilisation of the blasted ring. Model scale tests have been made to understand the mechanisms of rock breakage and therefore fragmentation under ...


    By Inderscience Publishers

  • Scaling-up investments in natural infrastructure

    Wetlands occur wherever water meets land. These deltas, marshes, rivers, lakes and watersheds are the water systems that link the natural world and human societies, and make it possible to clean, store and provide water to grow food and run businesses. As we prepare to participate in ...


    By Wetlands International

  • Controlling Scale Deposition and Industrial Fouling

    It costs US industry billions of dollars a year to control and remove the limescale that builds up in industrial equipment such a heat exchangers, evaporative coolers, boilers, chillers and other water fed equipment. Oil wells, for example, face significant scaling problems from the highly mineralized water that are extracted with the oil. Limescale not only increases downtime, maintenance ...

  • A solution for scale removal case study

    The Brookfields Restaurant chain consists of three large eateries located in and around Sacramento, Calif. Like many others, Brookfields Restaurants were equipped with water softeners to control lime scale on their hot water equipment, which consists of hot water heaters, dishwashers, steamers, coffeemakers and espresso machines. Even with the softeners, Brookfields Restaurants managers reported ...


    By HydroFLOW USA

  • A comment on the independence of allocation, distribution and scale

    There has been considerable debate about the independence of the three policy goals of allocative efficiency, distributional equity, and ecological sustainability since Daly's (1992) paper on the subject (Prakash and Gupta, 1994; Daly, 1994; Stewen, 1998; Daly, 1999; Stewen, 1999). I would like to weigh in here, if I may, because I think it is a key policy issue requiring further discussion. ...


    By Inderscience Publishers

  • Scale-up of the MIEX® DOC Process for Full Scale Water Treatment Plants

    The MIEX® DOC Process is a new process developed by Orica Watercare, South Australian Water Corporation and the CSIRO for the removal of dissolved organic carbon (DOC) from drinking water. Results from scale up of the process to a 170m3/day pilot plant have been reported previously (Nguyen, 1997). The process has now been successfully scaled up and trialed on a 1000m3/day pilot plant located at ...


    By IXOM Watercare

  • Research on the synthesis and scale inhibition performance of a new terpolymer scale inhibitor

    A new terpolymer named β-CD-MA-SSS was produced using free-radical polymerization of β-cyclodextrin (β-CD), maleic-anhydride (MA) and sodium-styrene-sulfonate (SSS) as monomers, with potassium persulfate (KPS) as initiator. Its performance as a scale inhibitor to prevent deposition of calcium carbonate (CaCO3) has been investigated. Experimental results demonstrated that β-CD-MA-SSS performed ...


    By IWA Publishing

  • Atomic-scale silicon device fabrication

    The driving force behind the microelectronics industry is the ability to pack ever more features onto a silicon chip, by continually miniaturising the individual components. However, after 2015 there is no known technological route to reduce device sizes below 10 nm. In this paper we demonstrate a complete fabrication strategy towards atomic-scale device fabrication in silicon using phosphorus as ...


    By Inderscience Publishers

  • Preventing scale in recreational vehicles and motorhomes

    Over 80% of North America is affected by hard water, which is a major problem for the owners of RVs and Motorhomes.  Consequently, whatever State you are visiting in your RV, or if you have a motorhome permanently located in a hard water area, limescale will clog pipes, ruin appliances, destroy faucets and cloud glassware. The award-winning, patented, Scalewatcher water-conditioner, from ...

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