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waste gas treatment Applications

  • Waste gas treatment for the LED industry

    Market analysts predict sustained growth in demand in the LED industry. After LED backlighting for the small LC displays of mobile phones and the LC displays of larger screens in the television market, the next potential growth market is the lighting industry: Sales of LEDs in this market in 2012 are almost USD 3.5 billion – thus nearly doubling since 2010. Analysts are expecting a growth of more than USD 7 billion in 2014 and believe that the total market for LEDs should peak at USD 17.7 billion.* A mass market of this scale for LEDs also means increasing emissions that need to be abated by specific waste gas treatment systems at the point of use. In the manufacture of products based on innovative light emitting diode (LED) technology, ammonia and hydrogen are used in large quantities as process gases. The environmental engineers at DAS have recognised this market trend and developed new solutions such as LARCH for waste gas treatment in MOCVD processes.

    By DAS Environmental Expert GmbH based in Dresden, GERMANY.

  • Waste gas treatment for the semiconductor industry

    In the early 1990s no appropriate and comprehensive technical solution had been available for waste gas treatment in the semiconductor industry. Back then as well as today many industrial and research production procedures use process gases and generate waste gases. These waste gases, considered greenhouse gases, are toxic and/or highly flammable and very often pose a significant risk to production facilities and the environment. The semiconductor industry, for instance, uses perfluorocarbons, whose global warming potential is extremely high and therefore requires an efficient waste gas treatment. Combining and transporting different gases into a fab’s central waste gas system might produce highly flammable and highly explosive gaseous mixtures, which in the past has occasionally caused the total loss of entire production facilities. Particles contained within gases may also cause exhaust blockages. To eliminate these risks, process waste gases need to be treated at the “Point-of-Use” (POU) where harmful exhausts are abated immediately.

    By DAS Environmental Expert GmbH based in Dresden, GERMANY.

  • Waste Treatment for Polluted Sediment

    Recognised for the durability and longevity of its equipment, MENART is sought after by petroleum groups and other specialised companies.

    By MENART based in Dour, BELGIUM.

  • Waste gas treatment for the TFT industry

    Manufacturing TFT/LCD displays requires waste gas treatment as well. Processes that produce large scale Thinfilm Transistors (TFT) on glass substrates, for instance, use Chemical Vapour Deposition – CVD – to separate the thin films onto the material. The process requires cleaning the process chamber periodically and usually employs etching with NF3. Etching of the separated thin films typically utilises CF4, SF6 and chlorinated gases, which release large amounts of waste gas mixtures.

    By DAS Environmental Expert GmbH based in Dresden, GERMANY.

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    Hazardous waste treatment solutions for oil and gas industry

    There are a wide amount of applications for our VacuDry® process within the oil and gas industry. A large variety of wastes and by-products that are generated in the oil & gas production chain can be treated effectively and sustainably. In past decades, numerous thermal desorption processes have been implemented worldwide, using a variety of heating chamber designs to separate hydrocarbons from the mineral solids. Such standard TDUs work under atmospheric pressure which can lead to safety risks, high energy consumption, larger emissions and limited flexibility regarding altering feed materials. Due to its unique design, the complications outlined above are avoided throughout the VacuDry® process. When it comes to treating standard oily wastes, mercury-containing waste streams, NORM, and especially for the recovery of highly valuable drilling fluids from drill cuttings; our vacuum thermal desorption process (i.e. vacuum distillation) is economically unbeatable.

    By econ industries GmbH based in Starnberg, GERMANY.

  • Waste gas & wastewater treatment for the solar industry

    Generating solar energy is considered `green technology`, even though the production of solar cells based on silicon predominantly uses process stages that have been common practice in the semiconductor industry for many years. As in the semiconductor industry the production of solar cells employs dangerous and environmentally harmful substances, which require abatement according to legal provisions. The production of photovoltaic cells therefore is subject to strict requirements for treatment of waste gases and wastewater. Solutions need to be easy and cost-effective. The contaminated wastewaters and waste gases should, under no circumstances, lower performance, endanger the health and safety of humans, or otherwise negatively affect the availability of production facilities. The safety of the production line must be guaranteed at every step and in every operating situation.

    By DAS Environmental Expert GmbH based in Dresden, GERMANY.

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    Oily Waste

    Wherever oil is produced, processed, transported or stored, our clients face large amounts of oily waste in many different forms. Our VacuDry® technology allows efficient and environmentally friendly treatment of all oily waste streams within a single plant. Due to the conditions under which the waste is treated (low temperature, vacuum and nitrogen blanketing), the recovered oil can then be reused after treatment. Find more information and the benefits of VacuDry® oily waste plants on

    By econ industries GmbH based in Starnberg, GERMANY.

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    Waste to Energy

    We can treat the air streams from waste management plants, MBT (Mechanical Biological Treatment) reception and composting areas, Waste Water Treatment Plants (WWTP), Refuse Derived Fuel (RDF) Plants, gasification of waste, syngas, torrefaction, gas engines and biogas upgrading. In waste management plants and WWTP, we remove the odors that may be causing a nuisance to neighbors, with bioreactors using Biomass to degrade odorous components and where odors are particularly intractable or VOC emissions higher, thermal oxidizers to meet prescribed emission limits and odor levels. In RDF Plants, Syngas, Gasification, Gas Engine and Biogas Upgrading applications, we employ thermal oxidizers, particulate removal and DeNOX systems, for the control of VOC, NOx, CO and particulates to prescribed emission limits.

    By Babcock & Wilcox MEGTEC based in De Pere, WISCONSIN (USA).

  • Gas detection analyzers for wastewater treatment industry

    Regulations prohibit facilities from discharging flammable or explosive wastes from their processes into the wastewater collection system. These wastes are not only a fire and explosion hazard but they can also effect the efficient and effective operation of the treatment facility. PrevEx Flammability analyzers are used to continuously monitor the waste stream for flammable gases and vapors. Their unique design and operating technology make them the ideal analyzers for the harsh conditions found in the sewer environment.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).




  • Oxygen Generating Systems for Waste Gas Treatment in the Semiconductor, PV and LED Industries

    Waste gas treatment is an often overlooked but important function of Semiconductor, PV and LED fabrication. Several serious accidents have taken place in factories where no abatement was installed. Even today waste treatment is often seen as a cost rather than a safety issue. There are three main reasons why waste gas treatment is installed in factories: health and safety, environmental factors, and quality control.

    By Oxygen Generating Systems Intl. (OGSI) based in North Tonawanda, NEW YORK (USA).

  • Wastewater treatment plants burning digester methane gas

    Superior boilers have hundreds of installations at waste water treatment plants burning digester methane gas. With hundreds of installations across North and South America, you can trust that your Superior Boiler will be sized correctly to safely burn a very useable, inexpensive fuel.

    By Superior Boiler Works, Inc. based in Hutchinson, KANSAS (USA).

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    Flow measurement instrumentation for waste water treatment flow solutions

    With its high turndown and direct mass flow, our immersible thermal meters are the instrument of choice for measuring aeration basin air flow and monitoring digester gas. Our vortex meters are used to measure steam in the cogeneration processes, while our ultrasonic flowmeters are used for influent and effluent measurement.

    By Sierra Instruments, Inc. based in Monterey, CALIFORNIA (USA).

  • Petrochemicals, Waste Water Treatment, Gold Refinery, Gasification

    We like to introduce ourselves as leading manufacturers of granular activated carbon used in water and waste water treatment. We have modern plant to manufacture this product to Indian & International specification. We are an ISO9001-2008 company duly certified by BVQI. Over 70% of our production ( 3000 tpy) is being exported to Europe, US, Gulf countries, African countries, far east (Korea) & South America. Our clients include Calgon, Chemviron, Desotec, ESLI, HSC, CarboTech, ect. In India we are exclusive suppliers to Reliance Industries Ltd to their various refining complexes. We manufacture over twenty grades for various applications besides water and waste water treatment like in gold recovery, catalyst support, gas mask carbons, impregnated carbons, NBC carbons, condensate polishing carbon, etc. We request you to register our names for your requirement of activated carbon and send us your valued enquiries. Kindly visit us at

    By Gowrishankar Chemicals Pvt Ltd based in Tumkur, INDIA.

  • Environmental technology for water treatment industry

    In many fields of water treatment Körting ejectors are applied as gas introducing systems; Waste water aeration in aeration tanks and SBR-Plants. Introducing ozone or oxygen. Pressurised dissolved air flotation. Disinfection of potable water and de-acidification.  Further applications are: Diluting and conveying acids and lye during the process of regenerating ion exchangers.

    By Körting Hannover AG based in Hannover, GERMANY.

  • Biofiltration

    Biological Aerated Upflow Filtration (BAF) for high efficient Waste Water Treatment in Refinery Industry with more than 20 reference plants and more than 20 years of experience

    By AquaBiotec based in Paris, FRANCE.

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    Water treatment for power plants

    The process of electricity generation from fossil fuels such as coal, oil and natural gas is water-intensive. Between 40-50% of all water abstracted and used in developed countries is used in the generation of electricity. Thus, a reliable, abundant and predictable source of raw water supply to a power plant is a critical factor in site selection. Water supplies are required to provide various process waters for the following essential main purposes such as make-up water, cooling water for steam turbine condensers, and auxiliary plant cooling water.

    The primary application of modern water treatment technology is to maintain the integrity and performance of the power plant. Critical plant applications have water purity or conditioning requirements that must be adhered to for safe, reliable and efficient power generation.

    Experience has shown that integration of water technology treatments with power plant design can be very important in reducing operational problems and component failures 

    At power plant worldwide there are increasing limitations on water availability and environmental restrictions on discharges. This is expected to promote measures for water conservation and to have an increasing influence on water treatment decisions. At power plant, the recycling of internal wastewater streams can extend from the recovery of individual high-quality waste streams, which can be reused either directly or after only limited treatment, through to the development of fully integrated water/wastewater treatment systems for zero liquid discharge. However, the application of reuse schemes requires site-specific assessment, as not all waters may be viable options for recovery.

    By De Nora Water Technologies based in Colmar, PENNSYLVANIA (USA).

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    Water treatment chemicals for the steel and coke industry

    The many production facilities within the steel industry, e.g. the blast furnace, converter, continuous caster, hot and cold strip mills and the coke oven plant require immense quantities of water for the cooling circuits and for gas scrubbing. During the last few years, the majority of steel plants have managed to significantly reduce freshwater usage per ton of steel through water recycling and process optimization. However, the high water quality standards required for the water circuits and regulations for waste water remain unchanged, resulting in an increased demand for professional water treatment.

    By Kurita based in Ludwigshafen, GERMANY.

  • Biomass Furnace Dust Filtration

    Application: PPS (Ryton) Filter Bags are widely used in coal-fired boilers, waste incinerators, coking furnaces, kiln furnaces,Biomass Furnace ,chemical dry process of flue gas cleaning processes, also using, carbon black, powder collection, pneumatic conveying, cement industry, and more. When due to chemical attack and hydrolysis causes, Aramid cannot be used, PPS (Ryton) Filter Bag can be substituted.

    By Zhejiang Grace Envirotech Co., Ltd based in XIAOSHAN, CHINA.

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    Air Pollution Control Solution for the FGD - SO2

    Flue Gas Desulfurization (FGD) involves the removal of sulfur dioxide and other acids from flue gases. Typical sources of acid gases include fossil fuel boilers, waste combustors, and other industrial applications such as refining and smelting. The Macrotek wet and dry FGD systems can achieve over 99% acid removal by using a variety of reagents, including caustic, sodium carbonate, lime and limestone, and waste alkaline solids or liquids.

    By Macrotek Inc. based in Markham, ONTARIO (CANADA).

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