RESULTS 6.4.1 Waste water Part of the water used by our production facilities is converted into beer and soft drinks. The rest is discharged as waste water and contains organic materials, the con centration of which is expressed by the chemical oxygen demand (COD). The specific COD load ('specific' in the sense of 'per unit of product') is an internal parameter for the degree of waste water contamination before treatment. This parameter is deter mined by losses of product and by-products. The specific COD load of the waste water discharged by our breweries decreased from 1.3 kg per hi of beer in 2000 to 1.2 kg in 2001. These reductions were achieved by various breweries through process improvements and by more accurate measurement of the degree of contamination. Process improvements at our breweries in Poland, for example, achieved substantial reductions in extract losses. The specific COD load presented by the waste water discharged by our maltings decreased from 9.7 kg per tonne of malt in 2000 to 6.5 kg in 2001, reflecting improve ments in the production processes achieved through more efficient monitoring and better analysis procedures. A new anaerobic waste-water treatment plant entered service at our brewery/malting in Seville (Spain) in 2001. The specific COD load for our soft-drink production units remained unchanged at 0.2 kg per hi of product. Some waste water is treated at on-site plants and some is treated externally. At 29 locations it is discharged into surface water without treatment. We are planning to build waste-water treatment plants at some 20 production locations in the years ahead. The effluent from our breweries, maltings and soft-drink production units (treat ed and untreated) which is discharged into surface water imposes a total COD load of 23,400 tonnes. Specific water consumption - breweries hl/hl 0.00 5.00 6.00 7.00 target 2004 5.20 2003 5.30 2002 5.50 2001 5.70 2000 6.10 1999 6.61 HEINEKEN REPORT 2000-2001 SAFETY, HEALTH ENVIRONMENT 32

Jaarverslagen en Personeelsbladen Heineken

Heineken - Milieuverslag | 2000 | | pagina 36