Strategies for energy recovery and gains associated with the implementation of a solid state batch methanization system for treating organic waste from the city of Rio de Janeiro - Brazil

Ornelas-Ferreira, Bernardo; Lobato, L. C. S.; Colturato, Luis Felipe Dornfeld Braga; Torres, Elineth; Ospina, Luis Miguel Pombo; Pujatti, Fabrício José Pacheco; Araújo, Juliana Calábria de; Chernicharo, C. A. L.

doi:10.1016/j.renene.2019.08.049

Cited by 27 publications

(11 citation statements)

References 11 publications

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“…Revenue from recovery Price of struvite 0.3-1 EUR/kg P [101], profit from struvite production: EUR -0.04 to 0.46 per kg of struvite recovered each day [113], there are savings due to the avoidance of unwanted struvite encrustations in pipes and pumps [103] Profit from compost sales, price of organic fertilizer: 14.5-17 EUR/ton [125,128] Considering the electricity price (0.06 EUR/kWh) and the mean power generated by the WWTP, the avoided costs would be 185,641.6-229,944.2 EUR per year 14 . Avoidance of transport and disposal costs of organic waste to landfill (EUR 12.2/ton of waste per month) [139] Reduces production, operational and maintenance costs of cement industries [93]; the saving out of using a 7.5% wet sludge in one kiln normally consuming 6.3 t/h of dry pet-coke (1% moisture) reach 8.0 EUR/h [151]; reduction of 66% of fossil fuel consumption [145] Logistics (necessary changes)…”

Section: Quality Of Effluent and Sludge (Removal Of Pollutants) And Ementioning

confidence: 99%

“…In addition, anaerobic sludge digesters are usually oversized due to low organic sludge loading, indicating capacity to receive other substrates, enabling co-digestion [97,161]. Considering methane production, the lower calorific value of methane (9.97 kWh.Nm-3CH4) [139], and assuming an electric conversion efficiency of 38% [135], the generator power capacity would be 405-501.7 kW. In addition, considering 8000 operating hours per annum by the motor-generator [135,162], the annual and daily power generation capacities were estimated (Supplementary Material S3 and Table 6).…”

Section: Institutional and Politicalmentioning

confidence: 99%

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A Framework for Sustainable Planning and Decision-Making on Resource Recovery from Wastewater: Showcase for São Paulo Megacity

Chrispim

Souza

Scholz

et al. 2020

Water

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Currently, it is important to develop strategic frameworks to support the selection of sustainable resource recovery solutions. This study applies a new framework for planning, implementation, and assessment of resource recovery strategies for a full-scale wastewater treatment plant (WWTP) in São Paulo megacity. The framework comprises several steps based on case study-specific data and information from current literature. Data were collected from various sources: a survey with a wastewater treatment utility, national and regional databases, and review of local regulations and international literature. Treatment configuration, wastewater and by-products composition, potential demand (for water, energy, and phosphorus), stakeholder identification, and local legislation were thoroughly discussed regarding decision-making on resource recovery. Scenario analysis was used to explore suitable nutrient and energy recovery measures based on indicators. Biogas recovery and sewage sludge composting showed more favorable conditions due to similar experiences in the area and robust legislation. The proposed framework is a simplified tool, and its application can support managers to get information on resource recovery and how to plan such initiatives in easier ways to facilitate wiser decision-making, and better operation and management. The results on framework use and refinement can guide potential applications in other contexts and stimulate public policy formulation and further research.

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Section: Quality Of Effluent and Sludge (Removal Of Pollutants) And Ementioning

confidence: 99%

Section: Institutional and Politicalmentioning

confidence: 99%

A Framework for Sustainable Planning and Decision-Making on Resource Recovery from Wastewater: Showcase for São Paulo Megacity

Chrispim

Souza

Scholz

et al. 2020

Water

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“…The organic fraction of municipal solid waste (OFMSW) is mostly composed of food waste (FW) (Ornelas-Ferreira et al 2020), and its poor management can result in soil, water and air pollution (Khoshand et al 2018). Leachate, which is composed of many substances toxic to human health and the environment, is produced in landfills and poses a risk for surface and groundwater contamination (Vaverková 2019).…”

Section: Impacts Of Different Waste Sources On Aquatic Environmentsmentioning

confidence: 99%

Anaerobic Digestion as a Tool to Reduce Anthropogenic Impacts on Aquatic Ecosystems

et al. 2022

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The large global generation and improper management of waste lead to the pollution of the environment and efforts toward reducing the impacts of anthropogenic activities on aquatic environments should be prioritized. The United Nations declared 2018-2028 as the international decade for action on “Water for Sustainable Development” and integrated management of water resources. Several international initiatives, such as the UN 2030 Agenda, the Sendai Framework for Disaster Risk Reduction and the Paris Agreement, have highlighted and strongly recommended the development of new technologies to reverse the current environmental scenario of global water bodies. The use of anaerobic digestion for treating organic wastes can minimize and avoid several adverse effects on aquatic environments while promoting nutrient cycling and the production of biogas, a renewable energy source that can replace fossil fuels and therefore decrease the emission of greenhouse gases. We performed a systematic review to evaluate the contribution of anaerobic digestion in preventing and reducing human impacts on aquatic ecosystems. China (15.1%), Spain (7.3%) and Italy (7.3%) are countries with a pronounced research focus on this topic, indicating their awareness on the importance of managing and preserving their water resources. The integration of co-digestion and pretreatment methods into anaerobic digestion improved the production of byproducts (especially energy and biofertilizer). Thus, this review highlights the success of AD technology as a waste treatment strategy, while reducing the damage inflicted to aquatic systems and its consequences to human health and aquatic biodiversity.

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“…Additionally, the scarcity of adequate areas for installing and operating new sanitary landfills in large urban centers and the unavailability of modern technologies for MSW treatment make waste management a vast and current challenge for Brazil [ 2 ]. Each year, more than 900,000 tonnes of MSW are disposed of in Brazilian sanitary landfills since they are the main form of adequate waste disposal in the country [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the waste biodegradable fraction can also be considered a heterogeneous energy source, depending on its composition [ 12 ]. The proper management of MSW biodegradable fraction can be done by anaerobic digestion of microorganisms, called methanization [ 2 ]. This digestion generates biogas, with high energy power [ 13 ], which contains about 60% of methane [ 14 ] and can reduce or mitigate adverse environmental impacts and become a source of energy [ 15 ].…”

Section: Introductionmentioning

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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Strategies for energy recovery and gains associated with the implementation of a solid state batch methanization system for treating organic waste from the city of Rio de Janeiro - Brazil

Cited by 27 publications

References 11 publications

A Framework for Sustainable Planning and Decision-Making on Resource Recovery from Wastewater: Showcase for São Paulo Megacity

A Framework for Sustainable Planning and Decision-Making on Resource Recovery from Wastewater: Showcase for São Paulo Megacity

Anaerobic Digestion as a Tool to Reduce Anthropogenic Impacts on Aquatic Ecosystems

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

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