Johannesburg       1993 1994 1995 Consumption of Water m3 10,800 16,700 14,100   Energy GJ 5,500 13,200 15,700 Recycling of liquid waste as fertilizer             Volume m3 0 0 0   -Dry matter content t 0 0 0   -Nitrogen content t 0 0 0   -Phosphorus content t 0 0 0 Recycling of liquid waste as pig feed:             Yeast slurry t 0 0 0 Recycling of solid waste:             Paper and cardboard t 0 0.8 0.7   Glass t 0 0 0   Plastic t 0 0 0   Iron and other metals t 0 0 0   Pancreatic tissue t 0 0 0   Incineration ash t 0 0 0   Food waste t 0 0 0   Garden waste for comp. t 0 0 0   Concrete and asphalt t 0 0 0   Oil and chemicals t 0 0 0   Total t 0 0.8 0.7 Disposal of solid waste:             Incineration t - 0 0   Land fills t - 1 1   Controlled destruction t - 0 0   Total t - 1 1 Emissions to the aquatic environment:             Waste water m3 - - -   -COD content t - - -   -Nitrogen content t - - -   -Phosphorus content t - - -   Treatm. after discharge y/n         Treatm. plant type (1995)         Emissions to air from production plant:             Organic solvents t 0 0 0 Emissions to air from energy production:             CO2 from own plant t - 169 198   CO2 from external plant t - 2,010 2,390   SO2 from own plant t - 0 0   SO2 from external plant t - 15 18 Storage of ozone-layer depleting subst.:             CFC kg - - -   HCFC kg - - -   HFC kg - - -   Halons kg - - -   Methyl bromide kg 0 0 0 Effect potent. from energy consump.:             Greenhouse effect, CO2 equiv. t - 2,360 2,800   Acidification, SO2 equiv. t - 22 25   Photochemical ozone formation,           C2H2 equiv. t - 0.5 0.6