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sand filter 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.

  • Algae control in water treatment plants

    Controlling algae, cyanobacteria and fouling efficiently with ultrasound to reduce taste and odor problems in the treatment plant. Prevent taste and odor problems. Control fouling in sand filters and clarifiers. Improve coagulation and flocculation processes.

    By LG Sonic based in Zoetermeer, NETHERLANDS.

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    Water treatment solutions for the mining industry

    Mining release large volumes of water with a high conductivity due to the mineral salts that it contains. These effluents must be be treated with sand filters or activated carbon filters to reduce the environmental impact. Our range of filters in fiberglass reinforced polyester is highly resistant to corrosion and is, therefore, suitable to withstand these aggresive conditions.

    By Poltank S.A.U. based in Sant Jaume de Llierca, SPAIN.

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    Water treatment solutions for the power industry

    Fossil fuel or solar-thermal power plants require clean water for their operation. Water used may contain several impurities such as calcium, magnesium or silica which can cause damages to turbines or heat exchangers. For this reason, water must be treated by ionic exchange or mechanical filtration. Also, the appropriate wastewater treatment for its reuse through sand filters in order to contribute to a sustainable water use is of vital importance.

    By Poltank S.A.U. based in Sant Jaume de Llierca, SPAIN.

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    Water treatment solutions for the industrial industry

    All the industries including pharmaceutical, food&beverage, chemical, textil, paper & pulp, etc. require big quantities of water. The water used in any industrial process as for example heating, cooling or if it is going to be consumed directly in the process like in food & beverage industry should be purified and softened. Our range of pressure vessels can treat these effluents through sand, multimedia or activated carbon filters according to the needs.

    By Poltank S.A.U. based in Sant Jaume de Llierca, SPAIN.

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    Water treatment solutions for the desalination

    Our Filters are Highly Resistant to Corrosivity. Reverse osmosis is one of the most widely applied desalination technologies. Previous to the process of separtion of water from salt and minerals, seawater or brackish wter requires the elimination of large size particles in order to assure a good performance of reverse osmosis membranes. Our sand filters facilitate the removal of these suspended solids to avoid membrane fouling. In addition, after reverse osmosis process, water has to be remineralized through calcite filters to increase the alcalinity and hardness of desalted water and reduce its corrosivity to fit for human consumption, domestic use, industrial or irrigation.

    By Poltank S.A.U. based in Sant Jaume de Llierca, SPAIN.

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    Water treatment solutions for the Drinking water & water reuse sector

    Water scarcity and the cost of water treatment has caused an increasing interest on water reuse for municipal and industrial reuse. Water treatment require mechanical filtration such as sand and anthracite filters to retain the particles that cause turbidity. Occasionally it is also necessary to reduce water hardness through ionic exchange or the adsortion of contaminants through the use of activated carbon. Our pressure vessels are suitable for any of type of filter media: sand, anthracite, silex, ionic exchange resings or activated carbon.

    By Poltank S.A.U. based in Sant Jaume de Llierca, SPAIN.

  • Activated carbons for water purification - Water and Wastewater - Drinking Water

    Carbon Activated is one of the major suppliers of activated carbon to the drinking water industry. Activated carbon is an efficient and cost-effective solution for removing a wide range of contaminants from industrial and municipal wastewater, contaminated ground and groundwater. 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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