Energy autarky of small scale wastewater treatment plants by enhanced carbon capture and codigestion – A quantitative analysis

Sarpong, Gideon; Gude, Veera Gnaneswar; Magbanua, Benjamin S.

doi:10.1016/j.enconman.2019.111999

Cited by 22 publications

(19 citation statements)

References 54 publications

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“…In terms of rural waste, long initial start-up phases biogas production, low methane yield, and reactor efficiency that are typical for anaerobic mono-digestion (AmD) of cattle manure (Adriamanohiarisoamanana et al, 2017;Matos et al, 2017;Adriamanohiarisoamanana et al, 2018;McVoitte & Clark, 2019) can lead to economic losses. In this sense, anaerobic codigestion (AcoD) process (simultaneous digestion multiple biodegradable substrate), is a promising alternative to solve problems related to AmD and to improve the economic viability of anaerobic digestion (AD) plants (Mehryar et al, 2017;Adriamanohiarisoamanana et al, 2017;Adriamanohiarisoamanana et al, 2018;Krištof & Gaduš, 2018;Clercq et al, 2019;Sarpong et al, 2019;González et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The AcoD leads to increased microbial diversity, biodegradability and accelerated hydrolysis process, resulting in an improvement of hydrolysis rate, reduced lad phases and increased biogas recovery (Guimarães et al, 2018;Adriamanohiarisoamanana et al, 2017;Donoso-Bravo et al, 2019;Panigrahi & Dubey, 2019). The addition of sewage sludge (SS) as a co-digestion eases the digestion of aggregates of particles, floating materials and wastes with unfavorable fluid dynamics (Sarpong et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Renewable electricity generation from biogas of anaerobic co-digestion of sludge, cattle manure and water

Paes¹,

Santos

Valadão

et al. 2020

BJD

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This study reported the viability of energy supply from the energetic conversion of biogas generated by the anaerobic co-digestion in biodigester of rural properties with different sizes of the herd. Indian model benchtop biodigesters were filled with sewage sludge (SS), cattle manure (CM) and deionized water (DW). The energy conversion calculation was based on the cumulative biogas yield (CBY), amount of cattle manure and one cubic meter equivalence of gas with electricity. In the SS co-digestion biogas production was accelerated and 25:50:25 SS:CM:DW presented higher cumulative production. Experimental data on the cumulative production of this ratio fitted to the exponential model, in which 28.15 L were obtained. The efficiency of anaerobic co-digestion of SS and CM was proved with a higher cumulative biogas production than in the single substrate digestion of SS and the single substrate digestion of CM. High immediate production was only observed with SS. There was a long lag-phase for digestion of only CM. An intermediate production profile to the previous ones was noticed when balancing the three co-digesters. The CBY was 16.56 L kg-1 , 0.48 L gTSadded-1 and 0.59 L gVSadded-1 to 25:50:25 SS:CM:DW. The implement of biodigesters in rural properties for electricity generation provided monthly 2600 kWh and economy of US$ 7669.19. It was concluded that the implantation of biodigesters with 25:50:25 SS:CM:DW to produce electric energy from biogas allows energy self-sufficiency of the property, enabling the sustainable development of the activity through the proper disposal of waste and economic gains to the producer.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Renewable electricity generation from biogas of anaerobic co-digestion of sludge, cattle manure and water

Paes¹,

Santos

Valadão

et al. 2020

BJD

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“…Exploration of new and unconventional water sources (deep saline groundwater and recycled water) caused by groundwater depletion, and consideration of brackish and sea water desalination have become major priorities for many communities . Energy and environmental footprints of water and wastewater treatment and desalination processes are well explored in recent literature . However, energy and water supply issues are intertwined and cannot be addressed in isolation .…”

Section: Introductionmentioning

confidence: 99%

“…This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. water and wastewater treatment and desalination processes are well explored in recent literature [4]. However, energy and water supply issues are intertwined and cannot be addressed in isolation [6].…”

Section: Introductionmentioning

confidence: 99%

“…Groundwater resource management, wastewater reclamation for water reuse, and desalination of saline waters, are the most common alternatives considered when balancing the water supply portfolio of many communities across the world . Exploration of new and unconventional water sources (deep saline groundwater and recycled water) caused by groundwater depletion, and consideration of brackish and sea water desalination have become major priorities for many communities .…”

Section: Introductionmentioning

confidence: 99%

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Resource recovery from low strength wastewater in a bioelectrochemical desalination process

Stuart-Dahl

Martinez‐Guerra

Kokabian

et al. 2019

Engineering in Life Sciences

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In this research, low strength synthetic wastewaters with chemical oxygen demand less than 300 mg L−1 were treated at different concentrations in a bioelectrochemical desalination process. A process optimization model was utilized to study the performance of the photosynthetic bioelectrochemical desalination process. The variables include substrate (chemical oxygen demand) concentration, total dissolved solids, and microalgae biomass concentration in the cathode chamber. Relationships between the chemical oxygen demand concentration, microalgae, and salt concentrations were evaluated. Power densities and potential energy benefits from microalgal biomass growth were discussed. The results from this study demonstrated the reliability and reproducibility of the photosynthetic microbial desalination process performance followed by a response surface methodology optimization. This study also confirms the suitability of bioelectrochemical desalination process for treating low substrate wastewaters such as agricultural wastewaters, anaerobic digester effluents, and septic tank effluents for net energy production and water desalination.

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Used Water Management from Circular Economy Perspective

Gude

2021

Handbook of Solid Waste Management

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Energy autarky of small scale wastewater treatment plants by enhanced carbon capture and codigestion – A quantitative analysis

Cited by 22 publications

References 54 publications

Renewable electricity generation from biogas of anaerobic co-digestion of sludge, cattle manure and water

Renewable electricity generation from biogas of anaerobic co-digestion of sludge, cattle manure and water

Resource recovery from low strength wastewater in a bioelectrochemical desalination process

Used Water Management from Circular Economy Perspective

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