Novara Environmental Statement 2007 English MEMC-NO ...
Novara Environmental Statement 2007 English MEMC-NO ... Novara Environmental Statement 2007 English MEMC-NO ...
Silicon and itsapplicationsMicroelectronic-solar silicon flow chartSilicon is a chemical elementthat is a semi-conductor in itscrystalline form; as such it fi ndsapplication in the microelectronicsindustry, as a base on which tocreate integrated circuits (chips),that is to say those electric devicesthat, by processing and/or storing data, are fundamentalfor the correct operation of all ofthe electronic equipment usedin industry and our daily lives.Crystalline silicon is also increasinglyused in the fi eld of solar photovoltaicsto produce photovoltaiccells capable of transformingsolar energy into electric power.However, although silicon is thesecond most abundant elementavailable on our planet after oxygen,in nature it is always boundwith other elements: in quartz forexample, in which it is bound withoxygen, or in silicate mineralsin which it is bound with variouselements (magnesium, aluminium,sodium and many others).Silicon can only be obtained bymeans of industrial processesas described in the fl ow chartshere below.MineSilicastoneSemiconductorapplicationsMetallicSilicaRefiningPolycrystalline siliconsolar productsTrichlorosilaneDepositionPolycrystallineSiliconMeltingSinglecrystalline siliconsolar productsAddition of Boron,Phosphorus or ArsenicSinglecrystallineSiliconSlicingIC chipSinglecrystallineWaterSolar cellSolar cell module6
A look at the historyThe construction of the MEMC sitewas started in 1976. In the followingyears the site grew at Novarawith the construction of new offices and productive departments.October 2001, the group E.ON Agsold the ownership to a new majorshareholder, an American investmentcompany called Texas Pacific Group.MEMC’s commitment toenvironmental protectionEnvironmental protection activitieshave been an important commitmentfor MEMC for some time nowand the company has completedvarious environmental improvementprojects over the last two decades,as described here beside:1990 elimination of ozone depletingsubstances1993 aquifer monitoring and decontamination1995 monitoring and decontaminationof acquired areas withground contaminated by pastprocesses1996 creation of own waste treatmentplant and expansion ofacid fumes abatement plant,completed in 20001998 reduction of specific energyand water consumption andreduction in the amount ofwaste produced, as well ascurbing polluting emissions tothe atmosphere and in surfacewater1999 awarded ISO 14001 certificationfor the EnvironmentalManagement System2002 registration on the EMASregister2005 soundproofing of fan ventslocated on the south side ofthe plant2006 an external company specialisedin the energy industrystarts and completes the constructionof a trigenerationplant on a piece of groundlocated behind the factory,providing almost all of theenergy needed to meet thefactory’s energy requirements.Novara trigeneration plant7
- Page 1 and 2: ABSTRACT OFENVIRONMENTAL STATEMENT2
- Page 3 and 4: 01IntroductionMEMC’s Novara site
- Page 5: Novara siteMEMC Electronic Material
- Page 9 and 10: 04EnvironmentalPolicyMEMC’s Healt
- Page 11 and 12: 06TheEnvironmental Management Syste
- Page 13 and 14: 08Quantification of the Environment
- Page 15 and 16: Energy consumptionThe main source o
- Page 17 and 18: Total water consumption - industria
- Page 19 and 20: Consumption ofauxiliary materialsVa
- Page 21 and 22: Consumption of chemical sustances:P
- Page 23 and 24: Emissions intothe atmosphereThe pro
- Page 25 and 26: Emissions into the atmosphere- Nitr
- Page 27 and 28: Emission of CarbonDioxide Equivalen
- Page 29 and 30: YearLimit by LawDLgs 152/0620002001
- Page 31 and 32: WasteThe total waste production val
- Page 33 and 34: Areas covered by reclaiming planM2M
- Page 35 and 36: EXTERNAL TRANSPORTWith regards to t
- Page 37 and 38: 09EnvironmentalImprovement Actions:
- Page 39 and 40: 2008 - 2011 ENVIRONMENTAL PROGRAMOb
- Page 41 and 42: Free translation of abstract fromEn
Silicon and itsapplicationsMicroelectronic-solar silicon flow chartSilicon is a chemical elementthat is a semi-conductor in itscrystalline form; as such it fi ndsapplication in the microelectronicsindustry, as a base on which tocreate integrated circuits (chips),that is to say those electric devicesthat, by processing and/or storing data, are fundamentalfor the correct operation of all ofthe electronic equipment usedin industry and our daily lives.Crystalline silicon is also increasinglyused in the fi eld of solar photovoltaicsto produce photovoltaiccells capable of transformingsolar energy into electric power.However, although silicon is thesecond most abundant elementavailable on our planet after oxygen,in nature it is always boundwith other elements: in quartz forexample, in which it is bound withoxygen, or in silicate mineralsin which it is bound with variouselements (magnesium, aluminium,sodium and many others).Silicon can only be obtained bymeans of industrial processesas described in the fl ow chartshere below.MineSilicastoneSemiconductorapplicationsMetallicSilicaRefiningPolycrystalline siliconsolar productsTrichlorosilaneDepositionPolycrystallineSiliconMeltingSinglecrystalline siliconsolar productsAddition of Boron,Phosphorus or ArsenicSinglecrystallineSiliconSlicingIC chipSinglecrystallineWaterSolar cellSolar cell module6
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