Sunday, March 24, 2019
Impact on the Environment of Electrical and Electronics Products Essay
Impact on the Environment of Electrical and electronics Products introductionElectrical and Electronics products ar now commonly found all roughly the world and the tot up is on the rise. The amount of such products that is universe accustomed is also on the rise. There is a concern on the surroundal effect by such products that is universe disposed as wellspring as when it is being manufacturer. This is beca custom most of these products contain either harmful inwardness or non bio-degradable corporeals which caseful an impact on the environment.For these reasons, regulations and directives are being delineate up to unspoilt guard and prevent more harm from being done to the environment.This wrap up would be discussing on the harmful effects by traditional manufacturing and many of the regulatory and directive being set up around the world. Also, responses from the electronics constancy with regards to the directives and regulations would be discussed.1  &n bsp  Traditional manufacturing of electronic equipments1.1     The use of soldering claimSolder comprised of tin and lead is currently a fundamental material joining electronic components to lap boards in the congregation of almost either type of electronic product. Worldwide, oer 20 cardinal pounds of tin-lead solder are use annually. 11.2     The manufacturing of PCBsIn the process of making PCBs use the "subtractive" process, the circuit pattern is created by chemically etching crap from the unprotected (non-circuit) areas of the squealer-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 aqueous solution of ferric chloride (FeCl3), used at temperatures over 50 C. FeCl3 is acidic, relatively cheap, comparatively innocuous and versatile, contend aluminium, copper, iron, nickel and their alloys. However, the spend etchant and its rinse water contain heavy admixture ions such as nickel and chromium which are hazardous to the environment and most voiceless to render harmless.Approximately 60% of the copper on the board is withdraw in the typical 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 throng time and displace 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/ discipline/mercury.htm6http//home.datacomm.ch/raabe/e_ee_1.pdfsearch=DIRECTIVE%20OF%20THE%20EUROPEAN%20PARLIAMENT%20AND%20OF%20THE%20COUNCIL7 http//www.entecuk.com/ thickening/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 recuperation and Recycling Conference Summary Report, Environmental wellness Center, 199818 Gertsakis, Ryan & Hoy, 1996http//www.rsc.orgOn RohsReferences for my part. Impact on the Environment of Electrical and Electronics Products try on 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 products 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. 11.2     T he 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 effectively 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 Recovery and Recycling Conferen ce Summary Report, Environmental Health Center, 199818 Gertsakis, Ryan & Hoy, 1996http//www.rsc.orgOn RohsReferences for my part.
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