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filter sand Applications

  • Dust monitoring and Sand Storm Monitoring

    The frequency and intensity of dust and sand storms in many parts of the world are steadily increasing due to droughts and climate change. The severity of such storms is anticipated to increase over the coming years. These dust storms may last hours or days and cause huge damage and imposed a heavy toll on society with its physical effects, such as visibility reduction, heavy winds, red sky, hailstone and severe lightning. Such Dust storms, have a negative impact on human health, and industrial products and activities. They reduce visibility, layer on skin and cloths, infiltrate buildings and find their way into food and drinking water leaving a permanent sandy feeling in your mouth. Traditional dust monitoring instruments whether they be purely filter based gravimetric samplers or continuous monitors utilising Tapered Element Oscillating Microbalance (TEOM) or Beta Attenuation (BAM) simply are unable to cope with the high dust loads created by these storms. The filters on these instruments are quickly clogged and no further measurements are possible until a service technician visits to replace filters and filter tapes. In dust storm events this is impossible. Therefore, over the past few years a need for alternate technology which are non filter based, can cope with extremely high dust loads, require minimal maintenance and can operate off solar power has been employed in regions such as the Gobi Desert of China for the continuous monitoring of dust storm events. These instruments have demonstrated that an instrument can measure dust storm events with maintenance performed only once every 12 months. That it is possible to communicate remotely and that these systems can not only provide an early warning for dust events but have the accuracy and sensitivity to be an extremely useful tool in gauging hourly changes of visibility. Infact such instruments have been utilised by a number of EPAs around the world, including all Australian EPAs for the purpose of measuring ambient visibility as well as providing an accurate indication of rising dust events.

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

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    Municipal wastewater solutions for tertiary treatment industry

    From continuous backwash sand filters to ultrafiltration membranes, WesTech will help you achieve reuse-quality effluent. Offering more than one type of treatment allows WesTech to provide the right design for your specific application.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA).

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    WEDA Underwater cleaning robots in lagoons and large fountains

    The new Weda YT-5000 with a five (5) meter wide suction nozzler speeds up the cleaning process considerably. Estimated cleaning speed is up to 3000 sq. meters/hour. The cleaner removes efficiently bottom sedimentation (sand, algae etc.) from the bottom surface and pumps it to a selected discharge point (filter, waste etc).

    By Weda AB based in Södertälje, SWEDEN.

  • Activated carbons for drinking water industry

    Carbon Activated Corp. is one of the major suppliers of activated carbon to the drinking water industry. Our carbon is used for numerous applications such as the manufacture of filter cartridges and RO systems and dialysis treatment. We provide carbon services to some of the largest municipalities in the US for ground water/potable water filtration. We also supply other types of filter media such as anthracite, sand and gravel and supply various types of filtration systems.

    By Carbon Activated Corporation based in Compton, CALIFORNIA (USA).

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