ADPMDesign: The use of a Participatory Methodology to design a dry anaerobic digestion power plant for municipal solid waste treatment

Franceschi, Fabiana F.; Castillo, Juan Sebastián; Cherni, Judith A.; Acosta-González, Alejandro; Gómez, Maria F.

doi:10.1016/j.esd.2023.03.017

Cited by 5 publications

(1 citation statement)

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“…According to the World Bank, in growing and low-income countries, 93% of municipal solid waste is incinerated or deposited in open fields, roads, thoroughfares, and bodies of water. Large-scale waste management continues to be a problem for developing countries [8]. However, only 2% of municipal solid waste in high-income countries is mismanaged [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Biochar on Anaerobic Co-Digestion of Untreated Sewage Sludge with Municipal Organic Waste under Mesophilic Conditions

Ramírez,

Deago,

James Rivas

2024

Energies

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Anaerobic digestion (AD) is a biological process that occurs in the limited presence of oxygen. This process involves various difficulties during the operation, such as acidification and increased concentration of volatile fatty acids, which can inhibit methane production. Therefore, in this work, the impact of biochar on the co-digestion of untreated sludge and residual biomass under mesophilic conditions was studied. For the production of biochar, the gasification process was used at different temperatures: 759 °C (BL), 798 °C (BM), and 888 °C (BH). This biochar was added in concentrations of 0 g/L, 3.33 g/L, and 6.67 g/L at the beginning of the co-digestion process. The results showed that a concentration of 6.67 g/L with BH biochar increased the PBM by 18% compared to the control sample and reduced the chemical oxygen demand (COD) by 88%. In addition, there was a reduction of volatile fatty acids (VFA) of 42.75%. Furthermore, FTIR analysis demonstrated that biochar has appropriate functional groups for this process. These data suggest a good interaction of biochar with the mixture of sludge and municipal waste, indicating that biochar can improve the anaerobic co-digestion of untreated sludge and municipal waste.

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Section: Introductionmentioning

confidence: 99%