Energy valuation of urban pruning residues feasibility assessment

Maccarini, Adelino Carlos; Bessa, Marcelo Rodrigues; Errera, Marcelo Risso

doi:10.1016/j.biombioe.2020.105763

Cited by 12 publications

(11 citation statements)

References 42 publications

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“…Figure 2 presents the main screen of the $AVEPI ® web application. Table 6 shows the deterministic EMIM results (Dranka et al, 2020; Guares et al, 2021; Maccarini et al, 2020). The company may recover the investment in the first year.…”

Section: Resultsmentioning

confidence: 99%

“…This procedure poses a risk to biodiversity (Damert et al, 2017; Rosa et al, 2009). If discarded without treatment, this waste can alter the soil’s physical and chemical properties, resulting in reduced productivity of crops and the availability of oxygen in the water (De Jesus et al, 2015; Gabisa & Gheewala, 2018; Maccarini et al, 2020). Dairy waste may contain dissolved and suspended solids, lactose, and fats resulting in high chemical oxygen demand (COD) and biological oxygen demand (BOD) (Slavov, 2017).…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

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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.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

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“…Therefore, they exceeded the energy cost of the process, which was 15.7 EUR/t and 15.3 EUR/t for hazelnut and olive pruning respectively, assuming 0.18 EUR kWh −1 the cost for electric energy. It is interesting to note that more and more studies are finding the potential of pruning waste, as observed by Maccarini et al (2020), who, with pruning waste from the urban environment, estimated the potential production of 1.406 MWe, with 6.77 tons day −1 of residues in eight hours per day, generated using standard CHP engines [46].…”

Section: Discussionmentioning

confidence: 96%

An Industrial Scale, Mechanical Process for Improving Pellet Quality and Biogas Production from Hazelnut and Olive Pruning

et al. 2021

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The effects of a mechanical process on the solid fuel quality and anaerobic biodegradability of hazelnut and olive pruning were determined. The feedstock was treated using a two-stage dry milling process, followed by fractionation into four different products. The coarser products from the processing of both the raw materials, named C and M, were notable for the high reduction in both the ash and nitrogen content. Therefore, for hazelnut, they met the requirement of the EN ISO 17225-2 standard for both the industrial and residential pellets, whereas C and M from olive processing met the requirements only for the industrial pellet. The raw materials and the finest products from processing, named F1 and F2, were anaerobically digested in batch reactors under mesophilic conditions. The F2 product from hazelnut processing reached a methane yield of 118.1 Nm3 tVS−1, corresponding to a +70.1% gain over the untreated substrate, whereas F2 from olive pruning processing reached 176.5 Nm3 tVS−1, corresponding to a methane yield gain of about +93.5% over the untreated raw material. These results suggest that the investigated process could be successfully used to improve the quality of pruning and establish new markets for them.

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“…Reducing the use of fossil fuels and increasing renewable energy use contribute to sustainable energy use. In this regard, biomass from pruning residue could contribute a lot as an energy resource [1]. Due to some restrictions on nonrenewable energy sources such as fossil fuels and nuclear fuels, the use of renewable energy is expected to expand.…”

Section: Introductionmentioning

confidence: 99%

Logistics Chain and Cost Assessment of Pruning-to-Energy Value Chains: Application of Life Cycle Cost Analysis Approach

Bosona¹,

Gebresenbet²

2022

Prunus - Recent Advances

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Biomass from agricultural residue has significant potential as renewable energy resource. Therefore, cost-efficient processing and supply of agricultural residues are important to strategically plan and utilize this energy resource. This chapter describes the agricultural pruning to energy (PtE) value chains and presents the life cycle cost analysis (LCCA)-based cost assessment results, focusing on almond and peach tree pruning data obtained from Spain during 2015–2016. Along the main life cycle stages of PtE system, costs of harvesting, off-farm storage, transport, biomass loss, and management of biomass supply chain were considered. In terms of functional unit cost, the life cycle cost (LCC) was calculated to be about 126 €/t for almond PtE and 115 €/t for peach PtE value chain. In both cases, the harvesting stage was found to be cost at hot stage followed by the storage stage. The cost at harvesting stage was about 83% (of 126 €/t) and 82% (of 115 €/t) in the case of almond and peach cases, respectively. Similarly, the share of operational cost was about 74% and 76% for almond and peach cases, respectively. Therefore, more efforts should be made to improve the performance of logistics operations and management of such PtE initiatives.

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Energy valuation of urban pruning residues feasibility assessment

Cited by 12 publications

References 42 publications

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

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

An Industrial Scale, Mechanical Process for Improving Pellet Quality and Biogas Production from Hazelnut and Olive Pruning

Logistics Chain and Cost Assessment of Pruning-to-Energy Value Chains: Application of Life Cycle Cost Analysis Approach

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