Methanization potential of anaerobic biodigestion of solid food waste

Oliveira, Laís Roberta Galdino de; Filho, Derovil Antonio dos Santos; Vasconcelos, Kaline C.; Lucena, Talita Vasconcelos de; Jucá, José Fernando Thomé; Santos, Anacleto Ranulfo dos

doi:10.1590/1807-1929/agriambi.v22n1p69-73

Cited by 6 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides, the alkalinity for FW and FW50 was less than 300 mg/L as CaCO3. Oliveira et al [31] also observed alkalinity lesser than 300 mg/L as CaCO3 from food waste. This study recorded total chemical oxygen demand (TCOD) of FW50 higher compared to FW, which is corresponding with reported by Seyed Abbas et al [32].…”

Section: Characteristic Of Untreated Food Waste (Fw) Thermally Treate...mentioning

confidence: 92%

Mild Thermal Pre-treatment as a Method for Increasing the Methane Potential of Food Waste

Fadzil¹,

Fadzil²,

Sulaiman³

et al. 2020

IJDNE

View full text Add to dashboard Cite

It is challenging to manage the organic fraction of municipal solid waste (OFMSW) because it is putrescible. OFMSW is dominated by food waste, and food waste is easily degradable and causes unpleasant odor at the landfill. Anaerobic digestion was preferable for food waste stabilization. However, the methane production of food waste was low. This research aims to analyze the methane yield and its kinetics from the digestion of thermally treated food waste. In preparing the thermally treated food waste, the water bath at 50°C was used and operated for two hours. The biochemical methane potential (BMP) was conducted in a batch reactor. The reactor was operated at a mesophilic temperature at inoculum to substrate ratio of 2.0. The results showed that the ultimate methane yield of thermally treated food waste increased with 630 mL CH4/g VS higher than untreated food waste. The thermal pre-treatment improved the methane production rate with an increment of 9.8%. Besides, kinetic parameters observed from Modified Gompertz modeling were found lesser than laboratory observation. Despite that, thermal pre-treatment at 50°C significantly improved the digestion of food waste.

show abstract

Section: Characteristic Of Untreated Food Waste (Fw) Thermally Treate...mentioning

confidence: 92%

Mild Thermal Pre-treatment as a Method for Increasing the Methane Potential of Food Waste

Fadzil¹,

Fadzil²,

Sulaiman³

et al. 2020

IJDNE

View full text Add to dashboard Cite

show abstract

“…According to Santos et al (2020), anaerobic digestion is a viable alternative to treat solid waste, because some of the waste generates renewable energy, produces biofertilizers and mitigates emissions. Oliveira et al (2018) adds that anaerobic digestion, as a treatment for the organic fraction of solid and semi-solid residues and to produce methane, is a technology used worldwide.…”

Section: Literary Reviewmentioning

confidence: 99%

“…Oliveira et al (2018) adds that anaerobic digestion, as a treatment for the organic fraction of solid and semi-solid residues and to produce methane, is a technology used worldwide.…”

Section: Introductionmentioning

confidence: 99%

Greenhouse gas mitigation scenarios in the solid waste sector for compliance with the Brazilian NDC: Case study of the Recife metropolitan area, Brazil

2023

View full text Add to dashboard Cite

The Intergovernmental Panel on Climate Change (IPCC) indicates that the waste sector is a potential emitter of methane gas (CH4), which has a greenhouse effect up to 28 times greater than that of carbon dioxide (CO2). The management of municipal solid waste (MSW) generates greenhouse gases (GHG) directly through emissions from the process itself as well as indirectly through transportation and energy consumption. The objective of this study was to evaluate the GHG emissions contributed by the waste sector in the Recife metropolitan region (RMR) and to define mitigation scenarios to comply with the Brazilian Nationally Determined Contribution (NDC), a result of the Paris Agreement. To achieve this, an exploratory study was carried out, including a literature review, collection of data, estimation of emissions using the IPCC model (2006), and comparison between the values assumed by the country in 2015 and those estimated in the adopted mitigation scenarios. The RMR is composed of 15 municipalities, has an area of 3,216,262 km2 and a population of 4,054,866 inhabitants (2018), generating approximality 1.4 million t-year of MSW. It was estimated that, in the period from 2006 to 2018, 25.4 million tCO2e were emitted. The comparative analysis between the absolute values defined in the Brazilian NDC and the results from the mitigation scenarios showed that approximately 36 million tCO2e could be avoided through the disposal of MSW in the RMR, equivalent to a 52% reduction in emissions estimated for 2030, a percentage greater than the 47% reduction assumed in the Paris Agreement.

show abstract

“…Low operational cost and a fast response are some of the advantages commonly associated with this method (Barbosa et al, 2018;Labatut et al, 2011;Owen et al, 1979;Schirmer et al, 2014). The literature has reported the anaerobic digestion of the most varied substrates and co-substrates for biogas production: organic fraction of municipal solid wastes inoculated with wastewater sludge and agroindustrial anaerobic sludge from treatment plants (Maciel and Jucá, 2011;Oliveira et al, 2018;Schirmer et al, 2014); organic fraction of municipal solid wastes inoculated with bovine and swine manure (Barbosa et al, 2018); fresh samples of fruits and vegetables wastes (Gunaseelan, 2004), olive mill solid wastes (Rincón et al, 2013), meat-processing wastes (Cavaleiro et al, 2013), among others with high biogas generation potential.…”

Section: Introductionmentioning

confidence: 99%

Energy Sustainability of Supply Centers From the Codigestion of Organic Waste

et al. 2020

View full text Add to dashboard Cite

The present study evaluated the potential for biogas generation from organic waste unfit for consumption collected at the Pernambuco Supply and Logistics Center (CEASA-PE), as well as an estimation of the electric energy production from waste biodigestion generated in this plant. The biogas generation potential used BMP bench-test (biochemical methane potential) biodigesters, in which the biogas production was qualitatively/quantitatively evaluated from CEASA waste codigested with different inocula (bovine ruminal fluid, goat manure and UASB reactor sludge) under mesophilic conditions for 80 days. The laboratory test showed that the waste inoculated with ruminant manures (goat and bovine) presented the lowest net volume of generated biogas compared to the other treatments.: 23.2 and 19.2 NmL.gds-1. On the other hand, the treatments with sludge and mixture of all the inocula generated the largest biogas volumes: 37.6 and 44 NmL.gds-1, respectively. A potential of 359 kWh.d-1 of electric power generation was estimated from the biogas generated at CEASA from the BMP bench assay, as well as from the quantitative and physicochemical parameters of the waste generated in this unit. The results indicate high potential for energy generation in the evaluated CEASA plant, promoting the recovery of these wastes as an alternative and renewable source for sustainable energy production, transforming environmental liabilities into potentially energetic assets of aggregate economic value.

show abstract

Methanization potential of anaerobic biodigestion of solid food waste

Cited by 6 publications

References 11 publications

Mild Thermal Pre-treatment as a Method for Increasing the Methane Potential of Food Waste

Mild Thermal Pre-treatment as a Method for Increasing the Methane Potential of Food Waste

Greenhouse gas mitigation scenarios in the solid waste sector for compliance with the Brazilian NDC: Case study of the Recife metropolitan area, Brazil

Energy Sustainability of Supply Centers From the Codigestion of Organic Waste

Contact Info

Product

Resources

About