Versione HTML di base
ENVIRONMENTAL REPORT
/
15
2008
0.00
m
3
/t of film produced
year
0.50
1.00
1.50
2.00
2.50
3.00
3.50
2009
2010
2011
3.07
3.31
2.63
2.29
5.2 Water
Water is intended both in terms of natural resource consumed and wastewater that derives from the
process and is costantly monitored. In the San Giorgio di Nogaro plant, it is used only as a thermal
fluid during the cooling and stabilizing phases of the film, therefore there are no relevant polluting
substances. Rainwater that flows on roofings and squares of the plant has been monitored too.
The water process cycle is of closed type, therefore consumption rates are limited to the vapour
derived from the evaporative towers, water overflows and the periodical discharge necessary to
maintain the appropriate characteristics of the fluid in the cooling circuit. Below there are the details
of waste water produced:
•
overflow of production plants (extrusion lines and regeneration plants)
•
discharge of the evaporative towers
•
washing of sand filters
•
additional operations (i.e. washings using water cleaners)
•
toilet facilities
•
canteen
Water consumption rates are nearly 2 or 3 m³ per ton of film produced with a trend that has registered
a significant reduction during the last three years, stabilizing at 2.29 m³ per ton of film in 2011.
Water consumption
indicator according to the
production.
WATER CONSUMPTION
After 2009 a new cooling plant aided the further reduction of water consumption. (See section 6).