water permeation analyzer Articles

  • Prediction of permeate flux decline in crossflow membrane filtration

    Microfiltration (MF) and ultrafiltration (UF) are pressure-driven membrane processes which are widely used in order to remove colloidal particles and microorganisms in water and waste water treatment systems. The filtration performance is, however, often hampered by the buildup of retained particulate matters on the membrane surfaces, which causes the deleterious permeate flux decline. ...


    By Toray Chemical Korea

  • Testing the barrier performance of metallized polymer films for permeation of oxygen and water vapour

    General Vacuum in Lancashire, now part of the Bobst Group have been designing and building large industrial vacuum roll coaters for use in optical, electrical and general packaging applications since 1996. Aluminium metallized polymer films can be used in packaging applications where there are a number of requirements including barrier protection (WVTR, OTR etc.).  This type of packaging has ...


    By Systech Instruments Ltd

  • Water vapour permeation measurement for PV Solar Cell packaging

    With fears of carbon dioxide causing global warming and diminishing supplies of fossil fuels, a looming energy crisis is affecting all countries.  As a consequence, a great deal of world-wide effort is going into the development of alternative energy technologies.  At present, wind, hydro and geothermal are becoming well established with more niche roles for tidal and solar. The latter ...


    By Systech Instruments Ltd

  • Contact Lens Permeation Testing from Systech Illinois

    A contact lens design using a particular material will require the measurement of Oxygen Permeation.  Materials with higher permeation rates together with thinner lenses will perform better, providing greater comfort during use.  However, simply choosing the material with the highest permeation rate and making the lens thin is not an easy option.  The lens shape and thickness ...


    By Systech Instruments Ltd

  • R&D Testing of PET bottles using Oxygen Permeation Analyser

    Constar International is a global leader in the development and manufacturing of PET (Polyethylene Terephthalate) plastic packaging, with over 50 years of development and manufacturing know how.  A world leader in the soft drinks packaging industry, Constar has been at the forefront of technological advancement in multi-layer and monolayer PET barriers.  Constar continue to expand, ...


    By Systech Instruments Ltd

  • Case study - Sievers 900/5310 C series TOC analyzers — calibration

    Synopsis The Sievers* 900 and 5310 C Series TOC Analyzers incorporate a number of new features and options designed toimprove the accuracy and linearity of the TOC measurements. Three new calibration options are available in the Analyzers: automatic conductivity offset, automatic TOC autozero, and single- or multipoint calibration of the TC and IC channels Conductivity ...


    By GE Analytical Instruments

  • Membrane process for spring water treatment in the Tula Valley: assessment of physicochemical and microbiological parameters in a non-conventional water source

    A nanofiltration (NF) membrane pilot plant was tested to treat water from a spring located in the Tula Valley. Conventional physicochemical parameters and the pathogenic content were analyzed at the inlet and outlet (permeate) of the process. Ninety-five per cent removal of heterotrophic bacteria was obtained by the membrane and complete removal of all other pathogens was achieved. The membrane ...


    By IWA Publishing

  • Sea Water Desalination - Technical Article

    Sea Water Desalination is a specific process involving molecular separation via membrane technology to reduce the dissolved salt and mineral content of sea water to a level suitable for human and animal consumption, commercial/industrial and irrigation uses. This process involves three water streams namely sea water as the intake source, Product / Permeate water of potable drinking water quality ...

  • Using magnetic powder to enhance coagulation membrane filtration for treating micro-polluted surface water

    The magnetic enhanced coagulation membrane filtration (MECMF) process was introduced into micro-polluted surface water treatment. The process was conducted by adding magnetic powder (MP) for enhancing coagulation. By contrasting the water quality parameters including dissolved organic carbon (DOC), UV254 and turbidity of permeates of MECMF and coagulation/flocculation membrane filtration ...


    By IWA Publishing

  • Mechano-chemical ageing of PES/PVP ultrafiltration membranes used in drinking water production

    In water treatment by microfiltration and ultrafiltration, a major concern is the integrity loss or failure of membrane induced by onsite operations, potentially leading to permeate water contamination. This study aims to provide a better understanding of the phenomena responsible for membrane damage by analyzing its causes and effects. The role of sodium hypochlorite exposure conditions and the ...


    By IWA Publishing

  • 12 strategies for moving from water scarcity to abundance

    How did a country that’s 60 percent desert achieve water security? In about 10 years, beginning shortly after the new century, Israel went from scarcity of water and fear of drought to abundance and independence from climate conditions. This dramatic change was made possible by the 70 years that preceded it in which a cadre of often brilliant engineers, scientists and ...


    By Ensia

  • Barrier Quality of Pharmaceutical Blister Packaging measured using Systech Illinois WVTR and OTR instruments

    Since 1967 Tekni-Plex, Inc, has provided solutions for innovative packaging and tubing products.  For their clients in the pharmaceutical and medical industries, the company has specialized in the development and manufacture of blister films offering superior barrier against ingress and egress of moisture and oxygen. In 2011 Tekni-Plex set up a Global Technology Center in Holland, Ohio, ...


    By Systech Instruments Ltd

  • RO filtration of biologically treated textile and dyeing effluents using ozonation as a pre-treatment

    Bench-scale experiments were conducted to investigate the application of ozonation pre-treatment for biologically treated textile and dyeing wastewater to improve performance of the RO process. Based on ozonation experiments, four specific ozone consumptions (SOC), 0, 0.3, 0.6, 4.0 mg O3/mg DOC0 were chosen for study of the effects of ozonation on the reverse osmosis (RO) process. Membrane flux ...


    By IWA Publishing

  • The whey to renewable energy

    When Tom Wilson with the Pennsylvania State University Cooperative Extension set out to study the feasibility of a community-based anaerobic digester in Mercer County, he initially analyzed processing manure collected from area dairies and food wastes gathered from the local college, nearby prisons and industrial food processors. But the economics of transporting the materials just did not make ...


    By BioCycle Magazine

  • A Trace of Arsenic

    The cans of baby formula invaded Brian Jackson’s Dartmouth College lab late in 2010. His team picked up an armful of popular brands at the food co-op in Hanover, N.H. Then another armload. Eventually Jackson had a cabinet full of the brightly labeled canisters. Today, he still keeps a few in his office. Not as clutter — that’s not his style. He just likes to keep his toxicology ...


    By Freytech Inc.

  • Sizing the clean economy: a national and regional green jobs assessment

    The "green" or "clean" or low-carbon economy-defined as the sector of the economy that produces goods and services with an environmental benefit-remains at once a compelling aspiration and an enigma. As a matter of aspiration, no swath of the economy has been more widely celebrated as a source of economic renewal and potential job creation. Yet, the clean economy remains an enigma: hard to ...


    By GLOBE Foundation

  • A comparison of two solid phase extraction methods for the analysis of Polyaromatic Hydrocarbons in butter

    Background Polyaromatic hydrocarbons (PAHs) are ubiquitous in the environment, resulting from both natural and manmade sources of combustion. Farm animals, such as cows, can become exposed to them through both consumption of contaminated feed and water, and inhalation of contaminated atmosphere ...


    By Sigma-Aldrich Co., LLC

  • Analysis of Polychlorinated Biphenyls in Fish Oil Using Supelclean EZ-POP NP, Silica Gel SPE, and an SLB-5ms GC Column

    Polychlorinated biphenyls (PCBs) were once widely used in many industrial and commercial applications such as insulating fluids, dielectrics, and lubricants. This included their extensive use in electrical transformers. PCB use has been banned in many countries, and the Stockholm Convention currently prohibits their production and use ...


    By Sigma-Aldrich Co., LLC

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