Resources, Conservation and Recycling | VOL. 128

Energy and GHG accounting for wastewater infrastructure

Publication Date Jan 1, 2018


Abstract Ensuring water and energy security and lowering the emissions of Greenhouse Gases (GHGs) are now priority areas for urban planners. However, most studies considered different components of urban wastewater infrastructure in isolation. This paper calculates the total energy and GHG footprints of wastewater infrastructure, including the energy consumption of, and GHG emissions from, the transport and treatment of wastewater, taking Delhi as a case study. The net energy consumed by wastewater infrastructure was conservatively estimated at 0.26 kWh/m3 (σ = 0.101 kWh/m3). Operating the infrastructure claimed 70% of the total energy, and electricity accounted for about 55% of the total energy. Nearly two-third of the total energy was used for treating the wastewater. The infrastructure for transporting wastewater claimed a greater share of the embodied energy of materials. Net GHG emissions from the wastewater infrastructure were estimated at 1.426 kg CO2-eq/m3 (σ = 0.41 kg CO2-eq/m3). Fugitive emissions contributed 53% of the total daily GHG emissions. The study revealed a trade-off between energy savings and environmental and GHG implications of wastewater infrastructure. Unlined open drains had lower GHG emissions and negligible energy use but an adverse impact on the environment and public health. Decentralized wastewater infrastructure is energy efficient in terms of the amount of pollutants removed but consumes more energy per unit volume of wastewater treated. Producing energy from the biogas generated in the proce...


Wastewater Infrastructure Greenhouse Gases Emissions Greenhouse Gases Net Greenhouse Gases Emissions Lower Greenhouse Gases Emissions Energy Footprints Negligible Energy Ensuring Water Security Total Greenhouse Gases Emissions Treatment Of Wastewater

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Climate change Research Articles published between Nov 21, 2022 to Nov 27, 2022

R DiscoveryNov 28, 2022
R DiscoveryArticles Included:  2

No potential conflict of interest was reported by the authors. The conception and design of the study, acquisition of data, analysis and interpretatio...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19


Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on “as is” basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The Copyright Law.