Page 109 - Materials Chemistry, Second Edition
P. 109
90 Life Cycle Assessment of Wastewater Treatment
BP final −0.02 0.00 0.00 −1.50 0.00 −0.70 −0.29 −628 0.00 0.00
Quantitative Amounts of Generated and Avoided Impacts for the Hydrometallurgical Process of 1 kg of Alkaline Batteries.
Zinc Oxalate −0.01 −0.02 −0.01 −1.60 0.00 −5.67 −2.23 −6031 −0.09 0.00
Potassium sulfate −0.04 −0.09 −0.01 −5.24 0.00 −6.47 −1.86 −4565 −0.06 0.00
Electricity 0.02 0.01 0.00 2.72 0.00 0.60 0.31 786 0.01 0.00
BP1 0.03 0.01 0.00 2.50 0.00 1.05 0.40 887 0.01 0.00
Tap water 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.08 0.00 0.00
Potassium Carbonate 0.03 0.01 0.01 3.71 0.00 2.73 1.41 3062 0.01 0.00
Potassium Hydroxide 0.00 0.00 0.00 0.03 0.00 0.02 0.01 25.71 0.00 0.00
Sulfuric Acid 0.00 0.02 0.00 0.14 0.00 0.24 0.08 163.43 0.00 0.00
Total 0.01 −0.07 −0.01 0.76 0.00 −8.20 −2.16 −6297 −0.12 0.00
Unit kg Sb eq kg SO 2 eq kg PO 4 —eq kg CO 2 eq kg CFC-11 eq kg 1.4-DB eq kg 1.4-DB eq kg 1.4-DB eq kg 1.4-DB eq kg C 2 H 4 eq
TABLE 5.4 Method CML 2000 Impact Category Abiotic depletion Acidification Eutrophication Global warming (GWP100) Ozone layer depletion (ODP) Human toxicity Fresh water aquatic ecotoxicity Marine aquatic ecotoxicity Terrestrial ecotoxicity Photochemical oxidation
