Comprehensive evaluation of the carbon footprint components of wastewater treatment plants located in the Baltic Sea region

Maktabifard, Mojtaba; Awaitey, Alexis; Merta, Elina; Haimi, Henri; Zaborowska, Ewa; Mikola, Anna; Mąkinia, Jacek

doi:10.1016/j.scitotenv.2021.150436

Cited by 29 publications

(5 citation statements)

References 25 publications

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“…The relative carbon footprint or indirect emissions per unit quantity is a function of supply chain and source of the chemicals in a specific WRRF. A most recent case study to determine the comprehensive carbon footprint of WRRFs in the Baltic Sea region is a good example of estimating decarbonization potentials in WRRFs (Maktabifard et al, 2022). Table 4.2 shows typical chemicals and estimated indirect emissions in a 113 000 m 3 /day operating flow, advanced water reclamation facility in Reno, NV, USA.…”

Section: Operational Strategies At the Whole Facility Levelmentioning

confidence: 99%

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

2022

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The water sector is in the middle of a paradigm shift from focusing on treatment and meeting discharge permit limits to integrated operation that also enables a circular water economy via water reuse, resource recovery, and system level planning and operation. While the sector has gone through different stages of such revolution, from improving energy efficiency to recovering renewable energy and resources, when it comes to the next step of achieving carbon neutrality or negative emission, it falls behind other infrastructure sectors such as energy and transportation. The water sector carries tremendous potential to decarbonize, from technological advancements, to operational optimization, to policy and behavioural changes. This book aims to fill an important gap for different stakeholders to gain knowledge and skills in this area and equip the water community to further decarbonize the industry and build a carbon-free society and economy. The book goes beyond technology overviews, rather it aims to provide a system level blueprint for decarbonization. It can be a reference book and textbook for graduate students, researchers, practitioners, consultants and policy makers, and it will provide practical guidance for stakeholders to analyse and implement decarbonization measures in their professions. ISBN: 9781789061789 (Paperback) ISBN: 9781789061796 (eBook) ISBN: 9781789061802 (ePUB)

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Section: Operational Strategies At the Whole Facility Levelmentioning

confidence: 99%

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

2022

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“…Wastewater discharge to the environment adds to the existing exacerbated issue of climate change. In 2014, the IPCC recorded that waste and wastewater account for around 3% of global greenhouse gas (GHG) emissions [1]. Releasing wastewater to the surroundings generates negative impacts among others Methane (CH4), Carbon dioxide (CO2), and Nitrous oxide (N₂O) gas emissions contributing to climate change phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Climate change impact assessment of various wastewater treatment facilities: A case study in Bandung City, Indonesia

Humaira,

Rahmah

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Untreated wastewater discharge poses notable environmental and public health problems, among others the production of CH4, CO2, and N2O gas emissions contributing to climate change phenomenon. The implementation of wastewater treatment facilities can minimize the GHG emissions resulting from the effluent. However, different technologies and systems perform different results. Using the Life Cycle Assessment method of analysis, this study took Bandung City as a case study and selected the seven most common wastewater treatment facilities found in the city. The results showed that individual hybrid systems with the combination of the conventional septic tank, conveyance by septage truck, and sludge treatment in the Septage Treatment Plant (HS1) and individual on-site system with the conventional septic tank (OFS1) produced substantial global warming impact, resulting in 0.78 and 0.71 kg CO2 eq respectively per 1 m3 treated wastewater. This amount was sixfold that of communal on-site systems with biofilter tanks (OFS2) and 2-3 times larger than other remaining systems. On the other side, the system that produced the lowest amount of GHG emissions performed by OFS2 (0.11 kg CO2 eq).

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“…GHG emissions of WWTPs are categorized as direct and indirect emissions. Direct GHG emissions include methane (CH 4 ), nitrous oxide (N 2 O), and CO 2 , which can be biologically produced and emitted in sewers and during wastewater and sludge treatment processes [6,7].…”

Section: Introductionmentioning

confidence: 99%

Role of Flexible Operation of a Wastewater Treatment Plant in the Reduction of Its Indirect Carbon Dioxide Emissions—A Case Study

Topuz,

Alsmeyer,

Okutan

et al. 2024

Water

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The increasing share of renewables in electricity grids comes with a challenge of energy surpluses and deficits, which needs be handled by demand side management (DSM) and storage options. Within this approach, wastewater treatment plants (WWTPs), with flexible energy consumption and production processes and storage units, can contribute to stabilizing the grids and integrating more renewables. In this study, the operation of a real WWTP was optimized by mixed integer linear programming (MILP) to minimize its indirect carbon dioxide (CO2) emissions. The operation of the WWTP was shown to be flexible in following the CO2 emission factor of the electricity grid, which was possible with the utilization of the WWTP’s storage units and flexible co-substrate feeding. As a result, by changing only the operational behavior of the WWTP, its indirect CO2 emissions decreased by 4.8% due to the higher share of renewables in the electricity grid. The CO2 emissions were shown to decrease further up to 6.9% by adding virtual storage units.

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Comprehensive evaluation of the carbon footprint components of wastewater treatment plants located in the Baltic Sea region

Cited by 29 publications

References 25 publications

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

Pathways to Water Sector Decarbonization, Carbon Capture and Utilization

Climate change impact assessment of various wastewater treatment facilities: A case study in Bandung City, Indonesia

Role of Flexible Operation of a Wastewater Treatment Plant in the Reduction of Its Indirect Carbon Dioxide Emissions—A Case Study

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