Life cycle analysis of potential municipal solid wastes management scenarios in Tanzania: the case of Arusha City

Table 5 Environmental impacts from the production of hydropower electricity (Ecoinvent v.3.6 database)

Category	Unit	Value
		1 kWh^*	43.55 kWh^*	135.35 kWh^a
		1 kWh^*	SN-1 (RCL_LF)	SN-3 (RCL_AD_LF)
Fresh water eutrophication	kg P eq	1.6 × 10 ^{- 6}	6.8 × 10 ^{- 5}	2.1 × 10 ^{- 4}
Human toxicity	kg1,4-DCB eq	2.1 × 10 ^{- 3}	0.09	0.28
Particulate matter formation	kg PM₁₀	2.1 × 10 ^{- 5}	9.0 × 10 ^{- 4}	2.8 × 10 ⁻³
Fresh water ecotoxicity	kg 1,4-DCB eq	1.8 × 10 ^{- 4}	8.0 × 10 ^{- 3}	0.03
Climate change	kg CO₂ eq	0.06	2.83	8.91
Terrestrial ecotoxicity	kg 1,4-DCB eq	5.3 × 10 ^{- 7}	2.3 × 10 ^{- 5}	7.3 × 10 ^{- 5}
Photochemical oxidant formation	kg NMVOC eq	3.8 × 10 ^{- 5}	1.7 × 10 ^{- 3}	5.2 × 10 ^{- 3}
Terrestrial acidification	kg SO₂ eq	2.1 × 10 ^{- 5}	9.2 × 10 ^{- 4}	2.9 × 10 ^{- 3}

SN Scenario, RCL Recycling, LF Landfilling, CP Composting, AD Anaerobic digestion, DCB Dichlorobenzene, NMVOC Non-methane volatile organic compounds
^a Quantity of hydropower electricity contributing to the environmental impacts

ISSN: 2468-2039