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electronic waste Applications

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    Shredding and crushing systems for electronic waste

    For optimal processing of electronic waste, it is especially important to yield secondary raw materials that are as pure as possible. For this purpose Mercodor, with its rugged, compact precision cutters, has exactly the right solution.

    By MERCODOR GmbH Sondermaschinenbau KG based in Frankfurt am Main, GERMANY.

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    Electronic scrap shredding for the electronic waste management industry

    One of the greatest challenges facing our society is the reclamation of valuable raw materials from electrical and electronic scrap. A global scrap volume exceeding 40 million tonnes a year – a figure forecast to double by 2025 – presents both a challenge and an opportunity. Since even in Germany only some 40% of scrap is currently fed into a waste management process, we may assume that the global rate of waste management is still substantially lower. With additional support from WEEE Directive legislation, this represents enormous growth potential for recycling companies in all consumer-oriented markets.

    By Erdwich Zerkleinerungssysteme GmbH based in Kaufering, GERMANY.

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    Waste Sorting - CRT Glass Sorting

    End of life TV sets and computer monitors require to be recycled to maximise the level of material recovery, and to meet the requirements of the EU WEEE Directive. CRT glass is the largest item by weight. However, because of the 2 different types of glass used in CRT manufacture, the glass fractions have to be sorted to achieve a separation of the 2 type of glass, i.e. panel glass sorted from funnel glass. X-TRACT separator is able to sort the panel glass from the funnel glass. It does it by comparing their different atomic densities, and analysing the data from the X-Rays using a bi-chromatic sensor system. X-TRACT is the first industrial application for any dry mechanical density sorting.

    By TOMRA Sorting (TITECH) based in Mülheim-Kärlich, GERMANY.

  • 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.

  • 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.

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    Recycling equipments for electronic waste recycling (WEEE)

    The content of WEEE (electrical and electronic waste) gives recyclers various initiatives for recycling. It contains hazardous substances, such as lead, mercury or certain flame retardants, as well as precious metals like gold and silver. In 2012 approx. 64,900.000 ton electronic goods where produced and 49.000.000 ton electrical and electronic waste (WEEE) was generated. As the amount of sold electronic goods rise, the amount of WEEE rises. It is vital that this waste is taken care of properly.

    By Eldan Recycling A/S based in Faaborg, DENMARK.

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    Shredding of electronic waste with Mercodor equipment

    For optimal processing of electronic waste, it is especially important to yield secondary raw materials that are as pure as possible. For this purpose Mercodor, with its rugged, compact precision cutters, has exactly the right solution.

    By MERCODOR GmbH Sondermaschinenbau KG based in Frankfurt am Main, GERMANY.

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    Metal Sorting - Electronic Scrap Sorting

    The recycling of disused and obsolete electrical and electronic equipment is gaining more and more importance world-wide. Waste electrical equipment is an incredibly rewarding source of raw materials. In Waste electrical equipment, up to hundreds of times more precious metals can be found per ton of material than in the primary source of raw material, ore. The goal for TITECH and the industry as a whole is to utilise electronic scrap recycling and sort out pollutants on one hand and profitable components in high purity on the other. For electronic recycling purposes, the EU classifies W??? into 10 categories. After separate collection of TVs, fridges and so on, they are processed and sorted in electronic scrap recycling systems. The average content of thus gained materials is as follows: metals (50%), plastics (30%), glass (10%) and other materials (10%).

    By TOMRA Sorting (TITECH) based in Mülheim-Kärlich, GERMANY.

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    Very large waste gas volumes with low contaminant concentration

    The CTP desorption allows for an especially high concentration factor which, in turn, reduces the cost of ownership and permits an auto-thermal operation (additional burner switched off) even when the contaminant concentration is low.

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    Thermal waste gas purification of siliceous organic compounds

    The cleaning problem of the heat exchangers was solved. The contaminants were destroyed efficiently and economically while steam for the production process was generated at no additional cost.

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    Industrial air pollution control for the electronics and electrical industry

    The world`s appetite for electronic devices - from simple household appliances to sophisticated computers - has led to rapid growth of both these industries. Typically for the electronics industry, there are large waste gas streams (up to 400,000 Nm³/h) with relatively low concentrations of different solvents. The waste gases mainly occur in coating, cleaning and etching processes during the production of semiconductors, CDs/DVDs, Blue-ray discs, DVTs, TFT-LCD and plasma displays. The electronics industry has important standards to meet regarding environmental protection. CTP complies with these requirements: From zero emission goals, to installations on the roofs of production facilities.

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    EH&S Regulatory Compliance Management for Electronics And Medical Devices

    Few industries face the mounting challenges and scrutiny of expanding environmental compliance requirements, ecological mandates, consumer expectations and NGO watch groups as much as electronics and medical device manufacturers. Even before the Sony PlayStation cadmium crisis, the entire supply chain has been inundated by an ever-expanding myriad of legislation, ranging from the EU Directives on waste electrical and electronic equipment (WEEE), the restriction of hazardous substances (RoHS) and the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) to US legislation on conflict minerals. The depth and amount of information that suppliers must access, evaluate, compile, integrate and disclose is growing exponentially.

    By 3E Company based in Carlsbad, CALIFORNIA (USA).

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    Shredders for Electric and Electronic Equipment (WEEE) and Refrigerators

    Electric and electronic waste (WEEE), are coming from technology products such as home appliances (washing machines, vacuum cleaners), computers and tools. An economy based on the consumption such as today, provides a continuous increase of WEEE, and determines an increasing risk of dropping out in the environment or in landfills, with the consequences of pollution of soil, air, water and health human repercussions. These products should be handled properly and used for the differential recovery of the materials they are made of, such as copper, iron, steel, aluminum, glass, silver, thus avoiding a waste of resources that can be reused to build new equipment in addition to the environmental sustainability.

    By SA Eng Soluzioni per l`Ambiente based in San Donà di Piave, ITALY.

  • 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).

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    Particulate matter, halogens and aerosols

    Without CTP's innovative upstream systems, regenerative thermal oxidation would not be possible, which would render the waste gas purification cost-intensive and inefficient. Continuous burning off in the RTOs eliminates the deposits which periodically clog the ceramic honeycomb blocks.

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    Water quality monitoring for semiconductor industry

    Water is fundamental to the manufacturing process in a semiconductor facility. Electronic components are rinsed or washed several times during the producing process with ultrapure water (UPW) to remove residue. Continuous monitoring of organic constituents (TOC) on the influent city water assist with UPW production. Good quality waste streams for the manufacturing process can also be monitored for reuse potential.

    By Real Tech Inc. based in Whitby, ONTARIO (CANADA).

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