Biogas upgrading, CO2 valorisation and economic revaluation of bioelectrochemical systems through anodic chlorine production in the framework of wastewater treatment plants

Batlle-Vilanova, Pau; Rovira-Alsina, Laura; Puig, Sebastià; Balaguer, M. Dolors; Icaran, Pilar; Monsalvo, Victor M.; Rogalla, Frank; Colprim, Jesús

doi:10.1016/j.scitotenv.2019.06.361

Cited by 59 publications

(14 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, water scrubbing systems are ideal for some methods of CO 2 utilization, such as the Vilanova et al's system for the bioelectrochemical reduction of CO 2 into higher order compounds. The solubilized CO 2 in water is suitable for reaction on electrode surfaces into valuable compounds that have the potential to sequester carbon (Batlle-Vilanova et al, 2019). Notably, biological methods for sequestering CO 2 in the AD process show great promise.…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Coupling Circularity With Carbon Negativity in Food and Agriculture Systems

Lower¹,

Cunniffe²,

Ji³

et al. 2022

Journal of the ASABE

View full text Add to dashboard Cite

HighlightsMany technologies required for circularity have the added benefit of carbon negativity.Precision agriculture, soil carbon sequestration, and biorefining couple circularity with carbon negativity.Stakeholders from many disciplines are needed to successfully couple circularity with carbon negativity.Abstract. Achieving a circular economy is critical for a sustainable future, particularly in sectors that currently produce resource-intensive products in a linear fashion, such as food and agriculture. At the same time, technologies that remove atmospheric CO2, often referred to as carbon dioxide removal (CDR) or carbon negativity, must be developed and deployed rapidly if we are to avoid the worst effects of climate change. Circularity and CDR are often assessed and discussed independently, even though they are highly intertwined. Innovations to food and agriculture systems are essential to achieving a circular economy and enabling rapid deployment of CDR technologies. We explore critical areas of technology that must undergo rapid innovation (upstream and downstream) to food processing and consumption, namely precision and regenerative agriculture and biorefining, respectively. If implemented at scale, these two areas of technology have the potential to couple circularity with carbon negativity in food production systems. Keywords: Biorefining, Carbon dioxide removal, Circularity, Food and agriculture systems, Precision agriculture, Soil carbon sequestration.

show abstract

Section: Anaerobic Digestionmentioning

confidence: 99%

Coupling Circularity With Carbon Negativity in Food and Agriculture Systems

Lower¹,

Cunniffe²,

Ji³

et al. 2022

Journal of the ASABE

View full text Add to dashboard Cite

show abstract

“…Moreover, the oxidation of chloride to chlorine (ΔG o =2.72 eV) appears to be particularly convenient also from an energy point of view, since it is 45% less energyconsuming than water electrolysis (ΔG o =4.92 eV), which is the reaction mainly used at the anode in BES systems for denitrification (Batlle-Vilanova et al, 2019).…”

Section: Chloride Recovery and Synthesis Of Disinfectantsmentioning

confidence: 99%

Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production

et al. 2021

Self Cite

View full text Add to dashboard Cite

Section: Perspectivesmentioning

confidence: 99%

“…MFC/UV effluents water could then be safely used for many reuse applications. Batlle-Vilanova et al [70] reported the simultaneous production of anodic methane and cathodic chlorine, which could be used as a disinfection agent; in the future, this may lead to a comprehensive GW treatment based solely on BESs. Bioelectrochemical reactions associated with power production (and related redox potential) were reported as the driving force behind the inactivation of different pathogens (Salmonella enterica, Pseudomonas aeruginosa, Staphylococcus aureus) present in urine in a cascade system of MFC anodes connected in series [71,72]; a similar system succeeded in the removal of hepatitis B virus surface HBsAg and core HBcAg antigens, showing to reduce the possibility of environmental transmission of hepatitis B [73].…”

Section: Perspectivesmentioning

confidence: 99%

Bioelectrochemical Greywater Treatment for Non-Potable Reuse and Energy Recovery

Cecconet

Bolognesi

Piacentini

et al. 2021

Water

View full text Add to dashboard Cite

Greywater normally represents the largest fraction of wastewater generated in buildings and may be suitable for non-potable reuse after on-site treatment. Conventional technologies for greywater treatment include sequencing batch reactors, membrane filtration, and membrane biological reactors. Even though these can be very effective, they are highly energy consuming and may negatively impact the energy balance of the building where they are installed. Microbial fuel cells (MFCs) have emerged as a sustainable technology for contaminant removal and energy production from a variety of substrates. In this study, the application of MFCs for greywater treatment is reported, with a particular focus on the analysis of energy losses, in view of non-potable reuse. MFCs were fed with different types of greywater, characterized by either high or low conductivity, because greywater’s conductivity may greatly differ based on its origin; in either case, organic matter (chemical oxygen demand; COD) removal was higher than 85% and not influenced by the influent conductivity, coupled with a maximum power production of 0.46 mW L−1 and 0.38 mW L−1. Electrolyte overpotentials were dramatically higher in the case of low conductivity greywater (20% vs. 10%, compared to high conductivity influent); these overpotentials are related to the conductivity of the influent, showing that low conductivity hindered energy generation, but not COD removal. Polarization and power curves showed higher internal resistance in the case of low conductivity, confirming the overpotentials’ analysis. Results showed the feasibility of the use of MFCs in greywater treatment, with potential to reduce the energy demand connected to its reuse compared to conventional technologies; coupling with a disinfection stage would be necessary to fully comply with most non-potable reuse regulations.

show abstract

Biogas upgrading, CO2 valorisation and economic revaluation of bioelectrochemical systems through anodic chlorine production in the framework of wastewater treatment plants

Cited by 59 publications

References 38 publications

Coupling Circularity With Carbon Negativity in Food and Agriculture Systems

Coupling Circularity With Carbon Negativity in Food and Agriculture Systems

Combining electro-bioremediation of nitrate in saline groundwater with concomitant chlorine production

Bioelectrochemical Greywater Treatment for Non-Potable Reuse and Energy Recovery

Contact Info

Product

Resources

About