Depollution benchmarks for capacitors,batteries and printed wiring boards from waste electrical and electronic equipment (WEEE) |
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Authors: | Daniel Savi Ueli Kasser Thomas Ott |
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Institution: | 1. Dipl. Environmental Sci. ETH, büro für umweltchemie, Zurich, Switzerland;2. Lic. Phil. Nat. (Chemist), büro für umweltchemie, Zurich, Switzerland;3. Dipl. Phys. ETH, Institute of Applied Simulation, Zurich University of Applied Sciences, Wädenswil, Switzerland |
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Abstract: | The article compiles and analyses sample data for toxic components removed from waste electronic and electrical equipment (WEEE) from more than 30 recycling companies in Switzerland over the past ten years. According to European and Swiss legislation, toxic components like batteries, capacitors and printed wiring boards have to be removed from WEEE. The control bodies of the Swiss take back schemes have been monitoring the activities of WEEE recyclers in Switzerland for about 15 years. All recyclers have to provide annual mass balance data for every year of operation. From this data, percentage shares of removed batteries and capacitors are calculated in relation to the amount of each respective WEEE category treated. A rationale is developed, why such an indicator should not be calculated for printed wiring boards. The distributions of these de-pollution indicators are analysed and their suitability for defining lower threshold values and benchmarks for the depollution of WEEE is discussed. Recommendations for benchmarks and threshold values for the removal of capacitors and batteries are given. |
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Keywords: | Waste electrical and electronic equipment WEEE Benchmarks Depollution Capacitors Batteries Printed circuit boards |
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