Co- digestión anaerobia de la fracción orgánica de residuos sólidos urbanos y su lixiviado.

Fonseca, Mabelin Benitez; Rodríguez, Arelis Ábalos; Pérez, Suyen Rodríguez

doi:10.15446/rev.colomb.biote.v22n2.70345

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…One possible explanation for this is that the increase in solid concentration due to the percentage of added manure can affect mass transfer processes (substrate-cell) and reduce the efficiency of organic matter utilization by the present microbiota. Studies in this regard indicate that methanogenic activity decreases as the solid concentration in the reactor increases, due to the higher concentration of added cattle manure [19].…”

Section: -4mentioning

confidence: 99%

The Sustainable Treatment of Municipal Landfill Leachate

B.,

Jaramillo,

Solano

et al. 2023

Proceedings of the 4th International Conference on Advances in Energy Research and Applications (ICAERA 2023)

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In this study, cattle manure was co-digested with different ratios of landfill leachate: 75:25 (R1), 50:50 (R2), and 25:75 (R3) to evaluate the performance capacities of biogas, CH4 production, and the volume obtained from this gas. The methane (CH4) and carbon dioxide (CO2) composition was analyzed using gas chromatography. A positive effect of leachate on methane production was observed in all three treatments when co-digested with cattle manure. It is evident that the highest methane production (CH4) was achieved in R3, reaching values of 96.81% on day 36, while R1 had the lowest methane production with maximum values of 91.74% on day 16. These high methane values in all three treatments can be attributed to the synergistic effect of the mixture, where it is considered that aged leachate has a higher buffering capacity as well as a more acclimated methanogenic consortium, leading to rapid methanogenesis of the organic load. Finally, there is concordance between the volume of biogas generated in R3 and the maximum methane content achieved by the 0.3:1 ratio of landfill leachate and cattle manure used in this reactor. Likewise, the Duncan test applied to the daily volume generated in reactor 3 confirms the maximum biogas volume obtained in this experimentation with a value of 203.67 mL reached on day 16 of anaerobic co-digestion, with 95% reliability. This allows inferring a high potential for the utilization of leachate in circular economy initiatives to address the challenges of achieving sustainability in the efficient management of municipal urban waste.

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Section: -4mentioning

confidence: 99%

The Sustainable Treatment of Municipal Landfill Leachate

B.,

Jaramillo,

Solano

et al. 2023

Proceedings of the 4th International Conference on Advances in Energy Research and Applications (ICAERA 2023)

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“…Theoretical energy and biofertilizer production estimations have been conducted by several authors to assess the environmental and economic benefits of treating OFMSW in large scale AD facilities (El Baz et al, 2020;Yong et al, 2021). Other authors have focused their research on lab-scale biochemical methane potential (BMP) assays and demo-scale systems in order to estimate the potential biomethane production along with the projected economic and environmental gains (Benitez Fonseca et al, 2020;Ornelas-Ferreira et al, 2020;Sohoo et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

A micro- and macro-scale look at the biochemical methanogenic potential of the organic fraction of municipal solid waste generated in a large city of a developing country

Ibarra-Esparza

Garibay

Lara-Topete

et al. 2022

Front. Environ. Sci.

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The management of municipal solid waste (MSW) is a complex and expensive task. This is especially the case in developing countries, where waste generation rates are continuously increasing and where current MSW management strategies are focused on inadequate practices, such as landfilling and incineration, which result in numerous health and environmental problems. The anaerobic digestion (AD) of MSW has been implemented worldwide as a solution to decrease the amount of waste ending up in landfills. This process allows for the recovery of energy from the organic fraction of MSW (OFMSW) in the form of biogas, which is largely composed of methane. Therefore, the goal of the present study was to evaluate the biochemical methane potential (BMP) of the OFMSW generated within different socioeconomic strata of the Metropolitan Area of Guadalajara (MAG), Mexico. From a microscale perspective, the microbial communities within the experimental AD system were analyzed using high-throughput sequencing of the 16S rRNA gene to assess the relationship between these communities and the biogas composition. This microbial identification revealed a typical AD composition consisting of the following six phyla: Actinobacteria, Bacteroidetes, Chloroflexi, Euryarchaeota, Firmicutes, and Proteobacteria. Furthermore, through the identification of Methanobacterium and Methanosaeta, two methanogenesis pathways (hydrogenotrophic and acetoclastic) were pinpointed. From a macroscale perspective, a multi-stage Gompertz kinetic model was used to describe cumulative biogas production. This model considered the complex nature of the OFMSW substrate in order to estimate the potential level of biogas production in the MAG using a weighted average that was based on the size of the population in each socioeconomic stratum evaluated (732.8 mL⋅g−1 VS). This novel contribution to the literature provides an estimation of the potential economic, energetic, and environmental benefits of treating the OFMSW produced in the MAG through AD. Through this approach, an estimated 8.5 MWh·year−1 of electrical power could be produced, translating into 1.13 million USD of yearly revenue and resulting in reduced GHG emissions (10,519 tonne CO2eq⋅year−1).

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Evaluation of the Dark Fermentation Process as an Alternative for the Energy Valorization of the Organic Fraction of Municipal Solid Waste (OFMSW) for Bogotá, Colombia

Becerra-Quiroz,

Rodríguez-Morón,

Acevedo-Pabón

et al. 2024

Applied Sciences

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In the context of valorizing the organic fraction of urban solid waste (OFMSW) in megacities, dark fermentation emerges as a central strategy alongside composting and anaerobic digestion. This article focuses on assessing the environmental, technical, and energy viability of dark fermentation using life cycle assessment (LCA) and circular economy principles. Dark fermentation for biohydrogen production is an active and promising research field in the quest for sustainable biofuels. In this context, defining operational parameters such as organic loading and the substrate-inoculum ratio is relevant for achieving better production yields. Laboratory tests were conducted using organic loading values of 5, 10, and 15 g of volatile solids per liter (gVS/L) and with substrate-inoculum ratios (s/x) of 1, 0.75, and 0.5 g of volatile solids of substrate per gram of volatile solids of inoculum (gVSs/gVSi). The combination with the best performance turned out to be an initial organic loading of 10 gVS/L and an s/x of 1 gVSs/gVSi. From this result, it was determined that the s/x had a greater impact on production. Finally, a valorization plant was dimensioned with the scaled-up process, starting from the municipal solid waste generated by Bogotá projected for 2042. The scaling was demonstrated to be energetically sustainable, producing a power of 2,368,358.72 kWh per day.

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Co- digestión anaerobia de la fracción orgánica de residuos sólidos urbanos y su lixiviado.

Cited by 3 publications

References 15 publications

The Sustainable Treatment of Municipal Landfill Leachate

The Sustainable Treatment of Municipal Landfill Leachate

A micro- and macro-scale look at the biochemical methanogenic potential of the organic fraction of municipal solid waste generated in a large city of a developing country

Evaluation of the Dark Fermentation Process as an Alternative for the Energy Valorization of the Organic Fraction of Municipal Solid Waste (OFMSW) for Bogotá, Colombia

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