Techno-economic model to appraise the use of cattle manure in biodigesters in the generation of electrical energy and biofertilizer

Guares, Simone Andreia; Lima, José Donizetti de; Oliveira, Gilson Adamczuk

doi:10.1016/j.biombioe.2021.106107

Cited by 16 publications

(20 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ARI/MARR index (Souza and Clemente, 2008) better indicates the financial return, which, in this work, was expressed as 91.62%, framing the ICLS studied as having a high degree of return (>66.66%), according to an adapted financial scale of Souza and Clemente (2008). This scale has been used in several studies on economic viability, including in agribusiness (Guares et al, 2021;Piovesan et al, 2021;Tomazini et al, 2021).…”

Section: Dimensionmentioning

confidence: 99%

Economic viability in the integrated crop-livestock system with nitrogen fertilization system and sward canopy heights

Elejalde

Soares

Lima

et al. 2023

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

Integrated crop-livestock systems (ICLS) are complex production strategies whose main components are soil, plant, and animal. Several studies addressed the interaction among them and conclude on the technical feasibility of these systems, but few studies assess their economic feasibility. The objective of this work was to analyze the economic feasibility of an ICLS, in which nitrogen was applied on the crop phase or onto the pasture phase, combined with two grazing intensities. The study was carried out on a private farm in the municipality of Abelardo Luz—SC, between October 2012 and April 2018. The experimental design was randomized blocks with three replications. The treatments were arranged in a 2x2 factorial scheme, with two sward heights (high and low) and two times of N-fertilization application, or on the cool-season pasture tillering phase either onto cash crop (200 kg of N ha−1 in a single dose). Crop implementation and maintenance costs were surveyed, followed by crop and livestock production calculations, zootechnical indices, and the revenue of each phase (pasture or grain crop) for the entire system. The cash flow analysis was carried out, generating economic indicators of the three dimensions of the expanded multi-index methodology (MMA) for the system and the treatments. In this study, pasture management with low sward canopy height provided the highest net gains per hectare and per hectare/year, regardless of the nitrogen application time. The use of the ICLS is economically viable, regardless of grazing intensities and nitrogen application times.

show abstract

Section: Dimensionmentioning

confidence: 99%

Economic viability in the integrated crop-livestock system with nitrogen fertilization system and sward canopy heights

Elejalde

Soares

Lima

et al. 2023

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

show abstract

“…The mathematical models of the EMIM, MCS, and ROA can be found in (Guares et al, 2021). On the other hand, the procedure to support selecting the most appropriate methodology considering the singularities of the project can be found in (Dranka et al, 2020).…”

Section: Multicriteria Model For Fat Removal From Dairy Wastementioning

confidence: 99%

A Multi-Criteria Model for the Techno-Economic Evaluation of Fat Removal Technologies From Dairy Waste

et al. 2023

Self Cite

View full text Add to dashboard Cite

This paper presents a multi-criteria model to identify the best technology for separating fat from dairy waste and evaluates the economic feasibility of its implementation. Also, the model incorporates the analysis of the project specificities. The methodology was structured in four steps: (i) identification of criteria and technologies by systematic literature review; (ii) acquisition of qualitative information (linguistic variables) from Brazilian and international experts; (iii) application of the TOPSIS 2-tuple multi-criteria linguistic method to rank the technologies; and (iv) evaluation of the economic viability of the best technology identified using the EMIM (expanded multi-index methodology). Separation by centrifugal force, solvent, heating/decanting, acid hydrolysis, and combined methods were the separation technologies most used in the literature and, therefore the considered alternatives. The model was validated in a dairy industry that produces 3,000 m3/day of waste, with 3% fat. The performance of the technologies concerning five criteria was between medium poor and good for both groups of experts. Also, the experts indicate centrifugal force as the preferred technology. This technology is economically viable, as it presented a high degree of return and low levels of risks and sensitivities. It is estimated a potential profit of R$ 55 million (NPV) over the project’s entire life cycle, equivalent to an annual return of approximately R$ 14 million (ANPV). This represents an Additional Return on Investment—ROIA of 51.17% annually. The Payback discounted occurs in the first year of its implementation. Similar analyses may apply the model we propose for other contexts involving technologies selection.

show abstract

“…For example, waste from bioenergy installations can serve as biofertilizers for rural agriculture. This also solves the financial challenge of several rural farmers who cannot afford fertilizers ( Guares et al., 2021 ; Marafon et al., 2020 ; Sheahan and Barrett, 2017 ). Clean cooking for rural dwellers through improved biomass cook stoves, biogas, or ethanol; and for city dwellers, through liquefied petroleum gas and electric cookers (electric cooking technologies are also being developed for rural dwellers for the medium-to-long term ( Kweka et al., 2021 ; Van Buskirk et al., 2021 )).…”

Section: Recommended Clean Transition Pathways For Developing Countriesmentioning

confidence: 99%

Section: Recommended Clean Transition Pathways For Developing Countriesmentioning

confidence: 99%

Affordable clean energy transition in developing countries: Pathways and technologies

2022

View full text Add to dashboard Cite

Techno-economic model to appraise the use of cattle manure in biodigesters in the generation of electrical energy and biofertilizer

Cited by 16 publications

References 27 publications

Economic viability in the integrated crop-livestock system with nitrogen fertilization system and sward canopy heights

Economic viability in the integrated crop-livestock system with nitrogen fertilization system and sward canopy heights

A Multi-Criteria Model for the Techno-Economic Evaluation of Fat Removal Technologies From Dairy Waste

Affordable clean energy transition in developing countries: Pathways and technologies

Contact Info

Product

Resources

About