Co-Digestion of Grape Marc and Cheese Whey at High Total Solids Holds Potential for Sustained Bioenergy Generation

Kassongo, Josue; Shahsavari, Esmaeil; Ball, Andrew S.

doi:10.3390/molecules25235754

Cited by 4 publications

(5 citation statements)

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“…Regarding research that has been developed about the use of CW and its connections to the principles of the CE, it was found that only eight articles have been published during the period under consideration [9,16,[41][42][43]. Of these publications, seven are from Europe (Spain, Greece, Ireland, Italy, Portugal, the United Kingdom, and the Czech Republic) and one from Oceania (Australia).…”

Section: Geographical Location Of the Studies And Its Evolution Over ...mentioning

confidence: 99%

“…It is observed that the author Rodrigues J.A.D., Ratusznei, S.M., Lovato, G., and Albanez, R. are the ones who hav Studies related to CW anaerobic degradation, from the perspective of the CE, appeared for the first time in 2017 [41]. However, it was only in 2020 when the largest number of publications appeared [9,16,42,43,48]. This finding allows the inference that the subject has not been extensively studied, which represents an opportunity for research in the context of Latin America and especially in countries such as Colombia, with a long tradition of dairy industries.…”

Section: Author and Word Co-occurrence Top Journals Main Articles And...mentioning

confidence: 99%

“…Kassongo et al [42], a study on A-COD to treat grape marc (GM), found that in using a ratio of 75:25 (GM:CW w/w) a removal of more than 21.18%, in the total COD was obtained, compared to just digesting grape wastes (GM). Therefore, these residues are useful for energy recovery and contribute to the sustainability of the wine fermentation process.…”

Section: Advances In the Inclusion Of Ce In The Biological Use By Ad/...mentioning

confidence: 99%

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Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy

et al. 2021

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Cheese whey is a waste produced in the dairy industry which generates problems if it is dumped directly into the sewer due to its high organic load. An alternative for cheese whey management is anaerobic digestion, a biological process that transforms organic matter into biogas and digestate, two products with significant energy and agricultural potential. This work was aimed at contributing to the building of knowledge about the anaerobic degradation of cheese whey, developing a bibliometric analysis, and tracing trends in related research from 2010 up to the present, using PRISMA® to develop a systematic review based on Scopus® and using Excel® and bibliometric software (VosViewer® and RefViz®) for the identification of information. Our results show that the research around cheese whey is relatively recent and that the highest percentage of publications is from 2018 onwards. Twelve variables of the anaerobic cheese whey degradation process were identified and grouped into five factors: substrate, reactor configuration, digestate analysis, microbiological analysis, and inoculum. Likewise, it was identified that most of the anaerobic processes allow the implementation of the circular economy into the dairy sector. In conclusion, the application of anaerobic digestion in the dairy sector can help to close the productive cycles, produce biofuels, and reduce pollution.

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Section: Geographical Location Of the Studies And Its Evolution Over ...mentioning

confidence: 99%

Section: Author and Word Co-occurrence Top Journals Main Articles And...mentioning

confidence: 99%

Section: Advances In the Inclusion Of Ce In The Biological Use By Ad/...mentioning

confidence: 99%

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Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy

et al. 2021

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“…This improvement in reactor capacity allows the treatment of co-substrates with high methane potential, thus producing more biogas to be valorized in the existent engines. High-strength organics considered suitable co-substrates include waste cooking oil, residual glycerin, or cheese whey from the food industry [49][50][51][52][53][54]. The organic fraction of municipal solid wastes has been extensively studied as co-substrate [55][56][57], but it has the risk of increasing the amount of inert material [58], deteriorating sludge agronomic quality.…”

Section: Cooling Circuit Energy Balancementioning

confidence: 99%

Energy Balance of Turbocharged Engines Operating in a WWTP with Thermal Hydrolysis. Co-Digestion Provides the Full Plant Energy Demand

et al. 2021

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The energy balance of lean-burn turbocharged engines using biogas as fuel is reported. Digestion data were obtained from the wastewater treatment plant (WWTP) of the city of Burgos (Spain), operating with a thermal hydrolysis unit for sludge pre-treatment. Operational performance of the plant was studied by considering the treatment of sludge as a comparative base for analyzing global plant performance if co-digestion is implemented for increasing biogas production. The calculation methodology was based on equations derived from the engine efficiency parameters provided by the manufacturer. Results from real data engine performance when evaluated in isolation as a unique control volume, reported an electrical efficiency of 38.2% and a thermal efficiency of 49.8% leading to a global efficiency of 88% at the operating point. The gross electrical power generated amounted to 1039 kW, which translates into 9102 MWh/year, with an economic value of 837,384 €/year which was completely consumed at the plant. It also represents 55.1% of self-consumption regarding the total electricity demand of the plant. The analysis of the system considering the use of the total installed capacity by adding a co-substrate, such as cheese whey or microalgae, reveals that total electrical self-consumption is attained when the co-substrate is directly fed into the digester (cheese whey case), obtaining 16,517 MWh/year equivalent to 1,519,160 €/year. The application of thermal hydrolysis as pre-treatment to the co-substrate (microalgae case study) leads to lower electricity production, but still attains a better performance than a mono-digestion baseline scenario.

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“…AnCoD of multifeedstocks has proved to be a preferred alternative to alleviate the drawbacks of conventional AD by nutrient balance, dilution of toxic materials, and increasing synergistic effects on microorganisms and therefore improving economic benefits through enhanced biomethane production (Bayr et al, 2014; J. Mata‐Alvarez et al, 2014). AnCoD has shown capability to mitigate the problems that may occur in monodigestion such as high ammonia concentration and inhibition of long chain fatty acid by balancing the mixing ratios of the feedstocks and diluting the long chain fatty acids (Chow et al, 2020; Kassongo et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Methods of pretreatment and their impacts on anaerobic codigestion of multifeedstocks: A review

Rabii

Koupaie

Aldin

et al. 2021

Water Environment Research

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Anaerobic codigestion (AnCoD) has attracted attention owing to its advantages over conventional anaerobic digestion, and attempts are still going on to develop methods for improving the efficiency of this technology. Mostly, addition of cosubstrates without applying a proper pretreatment cannot adequately enhance the performance of the digestion. However, there is a lack of a comprehensive study on different pretreatment methods specific to the wide range of cosubstrates. This review aimed to (i) categorize pretreatment techniques that have been developed for improving AnCoD, (ii) present the results of the studies on the effect of pretreatment on improving AnCoD, and (iii) provide a comparison between pretreatment methods and their application for different types of cosubstrates. The findings primarily validated the influence of pretreatment to enhance the process by increasing biodegradability, improved hydrolysis, reduced hydraulic retention time (HRT), and improved methane production. The five main categories of pretreatment employed in codigestion included the following: mechanical, thermal, chemical, biological, and hybrid pretreatment. Among them, mechanical and biological pretreatment have the most and least application in codigestion, respectively. Greater efforts are required on the application of biological pretreatment and cost–benefit analysis of different pretreatment options on the variety of the cosubstrates. Practitioner Points Pretreatment can significantly enhance biomethane production in anaerobic digestion Anaerobic codigestion along with pretreatment can further enhance the conventional anaerobic digestion of single feedstock Mechanical and biological methods have been the most and least practiced pretreatment options Selection of applicable pretreatment option to enhance methane production is subject to the type of cosubstrates in the system There is a research gap in evaluating the application of biological pretreatment for various types of cosubstrates

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Co-Digestion of Grape Marc and Cheese Whey at High Total Solids Holds Potential for Sustained Bioenergy Generation

Cited by 4 publications

References 66 publications

Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy

Opportunities for Waste to Energy in the Milk Production Industry: Perspectives for the Circular Economy

Energy Balance of Turbocharged Engines Operating in a WWTP with Thermal Hydrolysis. Co-Digestion Provides the Full Plant Energy Demand

Methods of pretreatment and their impacts on anaerobic codigestion of multifeedstocks: A review

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