Minimizing N2O emissions and carbon footprint on a full-scale activated sludge sequencing batch reactor

Rodríguez-Caballero, A.; Aymerich, I.; Marques, Ricardo; Poch, Manel; Pijuan, Maite

doi:10.1016/j.watres.2014.12.032

Cited by 104 publications

(37 citation statements)

References 26 publications

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“…It was found that just 1% of denitrified nitrogen emitted as N 2 O would increase the carbon footprint of the WWTP by approximately 30% (de Haas and Hartly 2004). The contributions of N 2 O emission in the total WWTP carbon footprint were reported as high as 78% by Daelman et al (2013) and 60% by Rodriguez-Caballero et al (2015). On the other hand, Aboobakar et al (2013) reported that N 2 O emission added only 13% to the carbon footprint associated with the energy requirements.…”

Section: Introductionmentioning

confidence: 99%

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Maktabifard

Zaborowska

Mąkinia

2018

Rev Environ Sci Biotechnol

217

106

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Wastewater treatment plants (WWTPs) consume high amounts of energy which is mostly purchased from the grid. During the past years, many ongoing measures have taken place to analyze the possible solutions for both reducing the energy consumption and increasing the renewable energy production in the plants. This review contains all possible aspects which may assist to move towards energy neutrality in WWTPs. The sources of energy in wastewater were introduced and different indicators to express the energy consumption were discussed with examples of the operating WWTPs worldwide. Furthermore, the pathways for energy consumption reductions were reviewed including the operational strategies and the novel technological upgrades of the wastewater treatment processes. Then the methods of recovering the potential energy hidden in wastewater were described along with application of renewable energies in WWTPs. The available assessment methods, which may help in analyzing and comparing WWTPs in terms of energy and greenhouse gas emissions were introduced. Eventually, successful case studies on energy self-sufficiency of WWTPs were listed and the innovative projects in this area were presented.

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Section: Introductionmentioning

confidence: 99%

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Maktabifard

Zaborowska

Mąkinia

2018

Rev Environ Sci Biotechnol

217

106

View full text Add to dashboard Cite

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“…Rodriguez-Caballero et al [21] have recently demonstrated that SBRs operated with long aerated phases provide the largest N 2 O emissions. Stenström at al.…”

Section: Introductionmentioning

confidence: 99%

Greenhouse gases from sequential batch membrane bioreactors: A pilot plant case study

Mannina

Morici

Cosenza

et al. 2016

Biochemical Engineering Journal

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“…Carbon footprint Direct and indirect GHG emissions of two model WWTPs (with anaerobic digestion and simultaneous aerobic sludge stabilization) CO 2 emissions [13] Incorporation of carbon footprint and GHG quantification in MWWTP modelling GHG emissions [14] Evaluation of methane emissions from an MWWTP with sludge digestion Methane emissions [15] Minimizing N 2 O emissions and carbon footprint on a full-scale sequencing batch reactor N 2 O emissions, carbon footprint [16] GHG emissions from WWTPs: minimization, treatment, and prevention GHG emissions [6] Energy assessment…”

Section: Evaluation Instruments Goal or Targeted Aspects Analyzed Impmentioning

confidence: 99%

Environmental and Energy Assessment of Municipal Wastewater Treatment Plants in Italy and Romania: A Comparative Study

Fighir

Teodosiu

Fiore

2019

Water

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Municipal wastewater treatment plants (MWWTPs) are essential infrastructures in any urban context, but they may be considered as a potential source of greenhouse gas (GHG) emissions and should be coherent with European Union (EU) policy on energy efficiency. This study presents a sustainability evaluation of four Italian and Romanian MWWTPs in terms of energy efficiency and greenhouse gas emissions using Energy Performance and Carbon Emissions Assessment and Monitoring (ECAM) tool software. The obtained results indicated that biogas recovery improved energy performances, while the largest contributions in terms of GHG emissions were in all cases caused by energy consumption and methane produced during wastewater treatment. The Romanian plants exhibited higher GHG emissions, compared to the Italian plants, mainly because of the different values of national conversion factors for grid electricity (0.41 kg CO 2 /kWh for Italy and 1.07 kg CO 2 /kWh for Romania). Two scenarios aimed at enhancing the overall sustainability were hypothesized, based on increasing the serviced population or energy efficiency, achieving significant improvements. A sustainability assessment of MWWTPs should be adopted as a useful tool to help water utilities to introduce low-energy, low-carbon management practices as well as being useful for policy recommendations. Highlights -Sustainability assessment of MWWTPs based on energy consumption and GHG emissions -Biogas valorization leads to lower energy consumption -Higher GHG emissions caused by energy consumption and methane production -Different scenarios were hypothesized to improve sustainability -National conversion factor, linked to local energy mix, played a key role

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Minimizing N2O emissions and carbon footprint on a full-scale activated sludge sequencing batch reactor

Cited by 104 publications

References 26 publications

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production

Greenhouse gases from sequential batch membrane bioreactors: A pilot plant case study

Environmental and Energy Assessment of Municipal Wastewater Treatment Plants in Italy and Romania: A Comparative Study

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