The Challenges of Using Organic Municipal Solid Waste as Source of Secondary Raw Materials

Pleißner, Daniel; Peinemann, Jan Christoph

doi:10.1007/s12649-018-0497-1

Cited by 11 publications

(6 citation statements)

References 40 publications

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“…On the other hand, the biodegradable fraction (food waste and pruning) of Campinas MSW landfilled for 3 years [ 31 ] had a smaller holocellulose to lignin ratio average (1.64) than 8 years of landfilling, and this can be explained by a large amount of pruning, rich in lignin. Therefore, the landfilled MSW biodegradable fraction can be used in energy generation to convert highly functionalized molecules into methane and carbon dioxide [ 32 ]. However, lignin content can be a limiting compound present in landfilled MSW for biogas production aims.…”

Section: Resultsmentioning

confidence: 99%

Biogas production from the landfilled easily degradable fraction of municipal solid waste: mining strategy for energy recovery

Leme

Torres-Mayanga

Lachos‐Perez

et al. 2022

Biomass Conv. Bioref.

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The growing demand for space and financial resources to manage current and new municipal solid waste (MSW) landfills has become a massive challenge for several countries. Additionally, landfills contribute to adverse environmental impacts such as pollution and CO 2 (carbon dioxide) and CH 4 (methane) emissions. This paper has analyzed the possibility of producing biogas from landfilled MSW. An easily degradable fraction of landfilled MSW with 8 years of landfilling was mined and subjected to chemical characterization and elemental composition analysis. The abbreviation for the study sample was called ED8 – Mined. The low values of lignin (24.5%) and nitrogen content (0.7%) and high values of holocellulose (75.9%) and C/N (46.1%) on dry basis were obtained resulting in materials with the potential to be used for biogas generation. Recalcitrant materials were found in greater amounts than easily biodegradable fresh MSW fractions. The reuse of energy from landfilled MSW can contribute positively to the country’s environment and economy, reducing environmental liabilities and generating energy in a controlled way. In Delta A Sanitary Landfill, Southeastern Brazil, the recovery of the ED8 – Mined would reflect a significant recovery of about 100,000 tonnes of landfilled materials for annual MSW cells of about 450,000 tonnes, allowing recovery of materials and space expansion for rejects. Graphical abstract fx1

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Section: Resultsmentioning

confidence: 99%

Biogas production from the landfilled easily degradable fraction of municipal solid waste: mining strategy for energy recovery

Leme

Torres-Mayanga

Lachos‐Perez

et al. 2022

Biomass Conv. Bioref.

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“…For the ROF residue, the glucose present in the hydrolysate was used as a carbon source, while RSO is based on a combination of two residues: sweet candy wastewater and OFMSW hydrolysate. Although these combinations kept the evaluated nutrient ratio, it is clear that the hydrolysate also contains other type of sugars, fatty acids, and nutrients due to its provenience (Kaur et al, 2019;Pleissner and Peinemann, 2020). In this way, recent literature reported that autoclaving hydrolysates can lead to the formation of inhibitors in the media, which suggests that tangential filtration could be considered as a potential option for future investigations (Ingham et al, 2023).…”

Section: Alternative Substrates For Sl Production In Ssfmentioning

confidence: 99%

Carbon and nitrogen optimization in solid-state fermentation for sustainable sophorolipid production using industrial waste

Eras-Muñoz,

Gea,

Font

2024

Front. Bioeng. Biotechnol.

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“…Several biorefinery configurations have been proposed to convert the OFMSW into value-added products such as biosurfactants, sugar syrups, bioethanol, succinic acid, lactic acid and biopesticides [ 10–15 ] and in-depth reviewed elsewhere [ 4 , 5 ]. A common trait among many of these is the use of enzymatic hydrolysis to fractionate the complex OFMSW macromolecules into functionalized molecules, which act as building blocks for subsequent steps [ 5 , 16 ]. Comprising 45–85% of the OFMSW composition [ 16 ], carbohydrates and fibers serve as a source of fermentable sugars, capable of being converted into bio-based products via fermentation processes [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…A common trait among many of these is the use of enzymatic hydrolysis to fractionate the complex OFMSW macromolecules into functionalized molecules, which act as building blocks for subsequent steps [ 5 , 16 ]. Comprising 45–85% of the OFMSW composition [ 16 ], carbohydrates and fibers serve as a source of fermentable sugars, capable of being converted into bio-based products via fermentation processes [ 13 ]. However, these studies are mostly focused on the liquid fraction rich in sugars and either disregard the solid fraction or consider it a waste and direct it to anaerobic digestion.…”

Section: Introductionmentioning

confidence: 99%

Exploring biorefinery alternatives for biowaste valorization: a techno-economic assessment of enzymatic hydrolysis coupled with anaerobic digestion or solid-state fermentation for high-value bioproducts

Molina-Peñate,

Artola,

Sánchez

2024

Bioengineered

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Enzymatic hydrolysis of organic waste is gaining relevance as a complementary technology to conventional biological treatments. Moreover, biorefineries are emerging as a sustainable scenario to integrate waste valorization and high-value bioproducts production. However, their application on municipal solid waste is still limited. This study systematically evaluates the techno-economic feasibility of the conversion of the organic fraction of municipal solid waste (OFMSW) into high-value bioproducts through enzymatic hydrolysis. Two key variables are examined: (a) the source of the enzymes: commercial or on-site produced using OFMSW, and (b) the treatment of the solid hydrolyzate fraction: solid-state fermentation (SSF) for the production of biopesticides or anaerobic digestion for the production of energy. As a result, four different biorefinery scenarios are generated and compared in terms of profitability. Results showed that the most profitable scenario was to produce enzymes on-site and valorize the solid fraction via SSF, with an internal rate of return of 13%. This scenario led to higher profit margins (74%) and a reduced payback time (6 years), in contrast with commercial enzymes that led to an unprofitable biorefinery. Also, the simultaneous production of higher-value bioproducts and energy reduced the economic dependence of OFMSW treatment on policy instruments while remaining energetically self-sufficient. The profitability of the biorefinery scenarios evaluated was heavily dependent on the enzyme price and the efficiency of the anaerobic digestion process, highlighting the importance of cost-efficient enzyme production alternatives and high-quality OFMSW. This paper contributes to understanding the potential role of enzymes in future OFMSW biorefineries and offers economical insights on different configurations.

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The Challenges of Using Organic Municipal Solid Waste as Source of Secondary Raw Materials

Cited by 11 publications

References 40 publications

Biogas production from the landfilled easily degradable fraction of municipal solid waste: mining strategy for energy recovery

Biogas production from the landfilled easily degradable fraction of municipal solid waste: mining strategy for energy recovery

Carbon and nitrogen optimization in solid-state fermentation for sustainable sophorolipid production using industrial waste

Exploring biorefinery alternatives for biowaste valorization: a techno-economic assessment of enzymatic hydrolysis coupled with anaerobic digestion or solid-state fermentation for high-value bioproducts

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