Wednesday, February 13, 2019
Impact on the Environment of Electrical and Electronics Products Essay
Impact on the Environment of Electrical and Electronics Products IntroductionElectrical and Electronics products atomic digit 18 now normally found all around the world and the number is on the rise. The cadence of such products that is universe disposed is also on the rise. There is a concern on the environmental effect by such products that is universe disposed as well as when it is being manufacturer. This is be social movement most of these products restrain either harmful substance or non bio-degradable real(a)s which cause an impact on the environment.For these reasons, regulations and directives atomic number 18 being set up to good guard and counter more harm from being done to the environment.This proclaim would be discussing on the harmful effects by traditional manufacturing and approximately of the regulatory and directive being set up around the world. Also, responses from the electronics labor with regards to the directives and regulations would be discus sed.1     Traditional manufacturing of electronic equipments1.1     The use of soldering threesomeSolder comprised of dismiss and lead is currently a fundamental material joining electronic components to spell boards in the assembly of almost any type of electronic product. Worldwide, everyplace 20 million pounds of tin-lead solder are used annually. 11.2     The manufacturing of PCBsIn the process of making PCBs using the "subtractive" process, the circuit pattern is created by chemically inscribeing blur from the un protected (non-circuit) areas of the copper-coated panel, going circuit traces protected with photoresist.Etching can be accomplished with acids or bases, depending on the etch rate and the line width required. The most commonly used etchant is an sedimentary solution of ferric chloride (FeCl3), used at temperatures over 50 C. FeCl3 is acidic, relatively cheap, comparatively innocuous and vers atile, attacking aluminium, copper, iron, nickel and their alloys. However, the pass etchant and its rinse body of water contain heavy metal ions such as nickel and atomic number 24 which are hazardous to the environment and most gruelling to render harmless. approximately 60% of the copper on the board is aloof in the true etching process. As the copper content of the etchant increases, the etchant cannot efficaciously remove the copper from the board, and it is consi... ...le. This also reduced the assembly time and lower the production represent 1718References1 http//www.epa.gov2 http//www.lsc.cc.mn.us/lib/classes/emuseum/disposal/disposal.html3 http//www.nsc.org/library/facts/lead.htm4 http//www.epa.gov/ttn/atw/hlthef/chromium.html5 http//www.pp.okstate.edu/ehs/training/mercury.htm6http//home.datacomm.ch/raabe/e_ee_1.pdfsearch=DIRECTIVE%20OF%20THE%20EUROPEAN%20PARLIAMENT%20AND%20OF%20THE%20COUNCIL7 http//www.entecuk.com/ knob/ec/fr_appendixa.html18 http//www.dti.gov.uk/ sustainability/weee/9 http//www.epa.sa.gov.au/pdfs/weee.pdf10 http//www.dti.gov.uk/sustainability/pdfs/finalrohs.pdf11 http//www.2001elec.co.uk/RoHS/index.htm12 http//www.epa.gov/dfe/pubs/solder/solderfact.pdf13 http//www.eia.org/new_policy/environment.phtm14 http//www.iaer.org/communications/NL0200.html15 http//www.svtc.org/cleancc/pubs/spheres_ehp.htm16 http//techrepublic.com.com/5100-6265-1058179.html17 Electronic Product retrieval and Recycling assembly Summary Report, Environmental Health Center, 199818 Gertsakis, Ryan & Hoy, 1996http//www.rsc.orgOn RohsReferences for my part. Impact on the Environment of Electrical and Electronics Products Essay Impact on the Environment of Electrical and Electronics Products IntroductionElectrical and Electronics products are now commonly found all around the world and the number is on the rise. The amount of such products that is being disposed is also on the rise. There is a concern on the environmental effect by such pro ducts that is being disposed as well as when it is being manufacturer. This is because most of these products contain either harmful substance or non bio-degradable materials which cause an impact on the environment.For these reasons, regulations and directives are being set up to safe guard and prevent more harm from being done to the environment.This report would be discussing on the harmful effects by traditional manufacturing and some of the regulatory and directive being set up around the world. Also, responses from the electronics industry with regards to the directives and regulations would be discussed.1     Traditional manufacturing of electronic equipments1.1     The use of soldering leadSolder comprised of tin and lead is currently a fundamental material joining electronic components to circuit boards in the assembly of almost every type of electronic product. Worldwide, over 20 million pounds of tin-lead solder are used annually. 1 1.2     The manufacturing of PCBsIn the process of making PCBs using the "subtractive" process, the circuit pattern is created by chemically etching copper from the unprotected (non-circuit) areas of the copper-coated panel, leaving circuit traces protected with photoresist.Etching can be accomplished with acids or bases, depending on the etch rate and the line width required. The most commonly used etchant is an aqueous solution of ferric chloride (FeCl3), used at temperatures over 50 C. FeCl3 is acidic, relatively cheap, comparatively innocuous and versatile, attacking aluminium, copper, iron, nickel and their alloys. However, the spent etchant and its rinse water contain heavy metal ions such as nickel and chromium which are hazardous to the environment and most difficult to render harmless.Approximately 60% of the copper on the board is removed in the typical etching process. As the copper content of the etchant increases, the etchant cannot effective ly remove the copper from the board, and it is consi... ...le. This also reduced the assembly time and lowered the production cost 1718References1 http//www.epa.gov2 http//www.lsc.cc.mn.us/lib/classes/emuseum/disposal/disposal.html3 http//www.nsc.org/library/facts/lead.htm4 http//www.epa.gov/ttn/atw/hlthef/chromium.html5 http//www.pp.okstate.edu/ehs/training/mercury.htm6http//home.datacomm.ch/raabe/e_ee_1.pdfsearch=DIRECTIVE%20OF%20THE%20EUROPEAN%20PARLIAMENT%20AND%20OF%20THE%20COUNCIL7 http//www.entecuk.com/client/ec/fr_appendixa.html18 http//www.dti.gov.uk/sustainability/weee/9 http//www.epa.sa.gov.au/pdfs/weee.pdf10 http//www.dti.gov.uk/sustainability/pdfs/finalrohs.pdf11 http//www.2001elec.co.uk/RoHS/index.htm12 http//www.epa.gov/dfe/pubs/solder/solderfact.pdf13 http//www.eia.org/new_policy/environment.phtm14 http//www.iaer.org/communications/NL0200.html15 http//www.svtc.org/cleancc/pubs/spheres_ehp.htm16 http//techrepublic.com.com/5100-6265-1058179.html17 Electronic Product Re covery and Recycling Conference Summary Report, Environmental Health Center, 199818 Gertsakis, Ryan & Hoy, 1996http//www.rsc.orgOn RohsReferences for my part.
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