How Green Is Your Footprint? The Impact of Greenhouse Gas Emissions on Strategic Planning

Scanlan, Patricia; Elmendorf, Holly; Santha, Hari; Rowan, James

doi:10.2175/193864708790894485

Cited by 5 publications

(1 citation statement)

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“…Rosso and Stenstrom [7] predicted that global emission of CO 2 and CH 4 associated with sewage discharge could reach the equivalent of 1.91 Â 10 5 Mg CO 2 d À1 in 2025. Therefore, the gaseous emissions and carbon footprint of wastewater comprise the main environmental concerns [8].…”

Section: Introductionmentioning

confidence: 99%

GHG mitigation from sewage effluents: C sequestration after reuse in different urban cropping systems

et al. 2020

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Large volumes of greenhouse gases (GHGs) are emitted during conventional treatment of sewage. On the other hand, sewage reuse may enhance biomass production, improve soil carbon sequestration and carbon balance. Therefore, the carbon balance in plant biomass and soils was assessed in 8-year long experiment where food grain (FGPS), fodder (FPS), vegetable (VPS) and agro-forestry (AFS) production systems were irrigated either with sewage (SW) or groundwater (GW), along with the application of varying doses of N and P (25-100% of the recommended). The build-up in soil organic carbon (SOC) was 41-69% of that added through SW. The maximum annual increment in SOC occurred with AFS (1.59 Mg ha À1 ) followed by FPS (1.13 Mg ha À1 ), VPS (0.89 Mg ha À1 ) and FGPS (0.77 Mg ha À1 ). The total carbon stocks accumulated in soils and plant biomass, in terms of CO 2 equivalence, were 33.4-39.8, 41.4-45.7, 35.6-41.6 and 14.5-18.4 Mg ha À1 year À1 for FGPS, AGFS, FPS and VPS, respectively, while those accumulated with 50-75% NP under SW irrigation were similar to 100% NP fertilizers under GW. These were equal to the GHGs released daily during conventional treatment of 0.42-1.06, 0.50-1.24, 0.44-1.09 and 0.20-0.48 million liters of sewage.

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Section: Introductionmentioning

confidence: 99%