Novara Environmental Statement 2007 English MEMC-NO ...
Novara Environmental Statement 2007 English MEMC-NO ... Novara Environmental Statement 2007 English MEMC-NO ...
Waste and fluid drainageWaste water from the variousproduction processes are channelledto the facility’s wastewater purifi cation plant, in functionsince mid 1997, in whichpollutants are treated and purified waters returned to the CavoVeveri irrigation canal, a confluent of the Terdoppio stream,where cooling waters are alsodischarged.Meteoric waters are also channelledinto the same streamthrough separate piping. Civiliandischarges are channelledto the Agogna stream throughthe municipal sewage system,after treatment in the municipalwater purifi cation plant.Listed in the charts below are thecapacities of the different typesof discharges, and the concentrationvalues (highest monthlyaverage recorded in the year considered,calculated as the mathematicalaverage of the concentrationsidentifi ed through internalanalyses on samples from eachdischarge, taken at least threetimes a week on alternate days)of the typical pollutants recordedat the waste water’s purifi cationplant’s discharge. Also indicatedare the limits imposed by currentlegislation:as shown in the charts,these limits are respected in allcases.To provide a complete picture,from 2007 the graph also showsthe maximum concentration valuefound throughout the year in thesamples described above. Theoffi cial sampling well is locatedimmediately upstream from thepoint of entry into the receivingbody of water (as set forth in theregulations in force) and outsideof the factory’s grounds. Boththe process water and part ofthe cooling water deriving fromthe factory meet at that point.In absolute terms, discharge ratesmaintain the downward trend alreadyseen in 2006. In particularthere has been a more signifi cantdecrease in process dischargerates, in line with the reductionin the consumption of deionisedwater used in production. Thedecrease in cooling water wasless relevant, also due to thefact that since March 2007 partof the water supplied for this purposeis sent to the nearby trigenerationplant to cool the motors.Analysis of the graphs showingthe concentration valuesfor polluting parameters typicalof the purifi cation plant dischargeshows that, overall,trends are in line with those ofthe previous three-year period.Year20002001200220032004200520062007Industrial waterdischargem 3 /year2.758.6012.622.1372.931.5343.027.6223.091.7033.313.5813.173.7483.033.580Waste waterfacility dischargem 3 /year2.093.0011.951.8172.638.1942.532.9132.317.5242.615.9072.485.0952.356.383The site industrial water dischargeTOTAL DISCHARGE (mc/year)3.310.0003.010.0002.710.0002.410.0002.110.0001.810.0001.510.0001.210.000910.000610.000310.00010.000INDUSTRIAL WASTE WATER(Water pumped from 1st and 2nd groundwater private wells)Cooling waterdischargem 3 /year665.600670.320293.340494.749774.179697.674688.653677.197Specific industrialwater dischargem 3 /MSIE15.89119.01316.96215.87913.73415.45812.60213.337% Annual specificconsumption2000=100100120107100869779842000 2001 2002 2003 2004 2005 2006 2007YEARWaste water facility dischargeCooling water dischargeTotal industrial water dischargeSpecific industrial water dischargeCIVIL WASTE WATER(water suppliedby municipal waterservice and 2ndgroundwater wells)Civil dischargem 3 /year30.52123.99825.55322.54520.22522.71324.82620.53720.00018.00016.00014.00012.00010.0008.0006.0004.0002.0000SPECIFIC DISCHARGE (mc/MSIE)28
YearLimit by LawDLgs 152/06200020012002200320042005200620077,407,507,807,587,707,587,497,65pH-5,5 - 9,55,55,55,55,55,55,55,55,59,59,59,59,59,59,59,59,545,677,066,060,726,738,421,413,8CODmg/l160160160160160160160160160Fluoridemg/l4,305,405,504,905,004,795,054,106666666668,24,811,714,67,812,327,45,3TSSmg/l808080808080808080Nitrite NO 2-mg/l0,200,200,400,500,300,260,210,050,60,60,60,60,60,60,60,60,6NitricNitrogen NO 3-mg/l1,201,501,802,305,505,192,353,65202020202020202020AmmoniacalNitrogen NH 4+mg/l0,800,301,700,701,101,040,060,18151515151515151515P - Phosphormg/l1,905,205,902,502,603,272,502,5410101010101010101022,728,033,168,460,361,146,443,7Sulfatemg/l100010001000100010001000100010001000Chloridemg/l231,10218,00193,00178,10220,00180,50161,34180,85120012001200120012001200120012001200Waste water - pHValori medi riscontrati10,09,59,08,58,07,57,06,56,05,55,08,186,52000 2001 2002 2003 2004 2005 2006 2007YEARWaste water - CODConcentrazione allo scarico (mg/l)170150130110907050301048,962000 2001 2002 2003 2004 2005 2006 2007YEARWaste water - Fluoride: F-Concentrazione allo scarico (mg/l)765432105,42000 2001 2002 2003 2004 2005 2006 2007YEARYearly average valueYearly minimal valueAverage valueMax and minimum limit by lawYearly average valueAverage valueMax limit by lawYearly average valueAverage valueMax limit by law29
- Page 1 and 2: ABSTRACT OFENVIRONMENTAL STATEMENT2
- Page 3 and 4: 01IntroductionMEMC’s Novara site
- Page 5 and 6: Novara siteMEMC Electronic Material
- Page 7 and 8: A look at the historyThe constructi
- 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: Emission of CarbonDioxide Equivalen
- 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
Waste and fluid drainageWaste water from the variousproduction processes are channelledto the facility’s wastewater purifi cation plant, in functionsince mid 1997, in whichpollutants are treated and purified waters returned to the CavoVeveri irrigation canal, a confluent of the Terdoppio stream,where cooling waters are alsodischarged.Meteoric waters are also channelledinto the same streamthrough separate piping. Civiliandischarges are channelledto the Agogna stream throughthe municipal sewage system,after treatment in the municipalwater purifi cation plant.Listed in the charts below are thecapacities of the different typesof discharges, and the concentrationvalues (highest monthlyaverage recorded in the year considered,calculated as the mathematicalaverage of the concentrationsidentifi ed through internalanalyses on samples from eachdischarge, taken at least threetimes a week on alternate days)of the typical pollutants recordedat the waste water’s purifi cationplant’s discharge. Also indicatedare the limits imposed by currentlegislation:as shown in the charts,these limits are respected in allcases.To provide a complete picture,from <strong>2007</strong> the graph also showsthe maximum concentration valuefound throughout the year in thesamples described above. Theoffi cial sampling well is locatedimmediately upstream from thepoint of entry into the receivingbody of water (as set forth in theregulations in force) and outsideof the factory’s grounds. Boththe process water and part ofthe cooling water deriving fromthe factory meet at that point.In absolute terms, discharge ratesmaintain the downward trend alreadyseen in 2006. In particularthere has been a more signifi cantdecrease in process dischargerates, in line with the reductionin the consumption of deionisedwater used in production. Thedecrease in cooling water wasless relevant, also due to thefact that since March <strong>2007</strong> partof the water supplied for this purposeis sent to the nearby trigenerationplant to cool the motors.Analysis of the graphs showingthe concentration valuesfor polluting parameters typicalof the purifi cation plant dischargeshows that, overall,trends are in line with those ofthe previous three-year period.Year2000200120022003200420052006<strong>2007</strong>Industrial waterdischargem 3 /year2.758.6012.622.1372.931.5343.027.6223.091.7033.313.5813.173.7483.033.580Waste waterfacility dischargem 3 /year2.093.0011.951.8172.638.1942.532.9132.317.5242.615.9072.485.0952.356.383The site industrial water dischargeTOTAL DISCHARGE (mc/year)3.310.0003.010.0002.710.0002.410.0002.110.0001.810.0001.510.0001.210.000910.000610.000310.00010.000INDUSTRIAL WASTE WATER(Water pumped from 1st and 2nd groundwater private wells)Cooling waterdischargem 3 /year665.600670.320293.340494.749774.179697.674688.653677.197Specific industrialwater dischargem 3 /MSIE15.89119.01316.96215.87913.73415.45812.60213.337% Annual specificconsumption2000=100100120107100869779842000 2001 2002 2003 2004 2005 2006 <strong>2007</strong>YEARWaste water facility dischargeCooling water dischargeTotal industrial water dischargeSpecific industrial water dischargeCIVIL WASTE WATER(water suppliedby municipal waterservice and 2ndgroundwater wells)Civil dischargem 3 /year30.52123.99825.55322.54520.22522.71324.82620.53720.00018.00016.00014.00012.00010.0008.0006.0004.0002.0000SPECIFIC DISCHARGE (mc/MSIE)28
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