permeation tube Articles

  • Choose among membranes for RO desalination - Varied construction options available

    A wide variety of membrane types, sizes, construction options and techniques are available for removing salt from water. There are basically two types of commercial membranes used in RO applications today: cellulose acetate (CA) and thin film (TF). The former is considered an integral membrane, the latter a composite membrane. The following is basic criteria to compare one type to the other: ...


  • Industrial reverse osmosis system design

    Reverse osmosis (RO) is currently used in various applications ranging from small, undersink drinking water units to large industrial systems. The technology is widely used and accepted as it removes both dissolved ionic and organic impurities. This article will focus on the reverse osmosis technology in industrial applications and will discuss factors that differentiate industrial RO from ...


    By Agape Water Solutions, Inc.

  • Laser induced release of encapsulated noble gas in SCHOTT receiver

    Thermo oil based parabolic through technology is limited to operational temperatures close to 400°C due to the decomposition of the heat transfer fluid and accompanying hydrogen permeation into the vacuum annulus. The presence of hydrogen in the annulus leads to an increase of thermal losses and a decrease in thermal efficiency. In order to overcome this so-called ‘hot tube ...

  • Features of Reverse Osmosis (RO)

    1. Removal of dissolved salts  Reverse osmosis can stably and effectively remove dissolved salts, dissolved organic substances (trihalomethane, its precursors, agricultural chemicals, etc.), and micro fine particles (living germs, dead germs, and many other micro fine particles) from water. Thus it is ideal for a wide area of applications ranging from production of ultra pure water to ...


    By Toray Membrane Europe

  • 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

  • Spiral-Wound Sepralators: The Range of Options

    Introduction Spiral-wound membrane elements (sepralators) were used mainly for basic water purification until the mid to late 1970s, when broader uses began to receive attention. New applications often required special consideration such as; sanitary construction for the dairy industry, high temperature for food processes and waste streams, and high pressure capability for desalination. In ...


  • Genwest silverhawk power plant in nevada to install brine concentrator system

    The Facility The 570-Megawatt Silverhawk Power Station is a natural gas-fired combined cycle electric generating station located in Clark County 20 miles north of Las Vegas, Nevada. In order to meet the permitting requirements and conserve water, the facility uses a dry cooling arrangement. The project was constructed by Lockwood Greene acting as EPC under the project management ...

  • Zhuhai --a membrane based water treatment plant

    The Facility At the time it was built, the Guangdong Zhuhai Power Station set a number of firsts for China. Not only was it the largest thermal power plant in terms of unit size , it was the first to use Reverse Osmosis Water Treatment and it was the first to be financed without a multilateral or government guarantee. Zhuhai was also EPC Mitsubishi Heavy Industries’ first turnkey ...

  • Application of Membrane Technology for the Recovery and Reuse of Water

    Abstract As water and sewer costs are expected to increase over the next decade, membrane technology will continue to be a viable and economical option in the recovery and reuse of water. This paper describes the mechanism of membrane effected separation (specifically reverse osmosis, ultrafiltration and microfiltration), membranes commercially available, membrane element configurations, and how ...


  • Dialysis with a semipermeable membrane – a new sample-preparation technique for determination of Polybrominated Diphenyl ethers in fatty matrices

    Summary Dialysis with a low-density polyethylene semipermeable membrane (SPM) is an efficient means of removal of lipids in the determination of bioaccumulative, persistent, halogenated organic compounds. In this study an SPM was used for preconcentration of polybrominated diphenyl ethers (PBDE) from food samples. The method is useful for determination of PBDE and other halogenated ...


    By Exposmeter AB

  • Research papers: safe use of Microbubbles for removal of RO Membrane Fouling - Case Study

    For full downloadable report Abstract The authors have shown a dramatic improvement in cleaning efficiency when effervescent cleaning reagents are used in conjunction with bubbles created using a specially designed microbubble generator. One potential problem associated with this new technique ...

  • How Accurate is Your Monitor?

    When you consider the many regulations and guidelines that health and safety officers and first responders are faced with, it is amazing they maintain the ability to detect such a wide variety of hazardous pollutants and toxic agents.  There is no lack of regulations governing how to monitor chemical compounds, and the list grows longer all the time.  New standards for portable gas ...

  • Membrane Bioreactors for RO Pretreatment

    ABSTRACTCurrently, treated municipal wastewater is typically discharged to the environment in most parts of the world. It is, however, a potential water resource from which high quality water for reuse can be produced. Reuse applications include both non-potable applications such as irrigation and production of industrial process water, and indirect potable reuse including aquifer recharge. For ...

  • The future for desalination in the UK

    Documento sin título In this feature article, Anthony Bennett, Technical Director at Clarity, reports on developments in the application ...


    By Clarity Authoring

  • Economy in car-making - powder metallurgy

    Powder metallurgy (PM) has made a major contribution to the technology of automotive manufacture over the past 70 years. It has been and is still the fastest-growing metalworking technology. Today, on average, it provides about 10kg of the total components of a car — more in the US, where cars are larger and use automatic transmissions in nearly all units sold and less in Europe and Japan, ...

  • Controlling Bacteria In a Clean Room Environment

    Maintaining the integrity of a cleanroom is a constant battle. The first step to deciding which method, or combination of methods, to employ is to identify the prime sources of contamination. There are three prime sources of contamination through which the integrity of a cleanroom might be breached. First, there is the human element. While many processes might be automated, many situations remain ...


    By GVS Filter Technology

  • 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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