Can adding liquid hatchery waste to sheep manure potentialize methane production and add value to sheep farming?

Orrico, Ana Carolina Amorim; Schwingel, Alice Watte; Gimenes, Régio Márcio Toesca; Souza, Sulma Vanessa; Orrico, Marco Antônio Previdelli; Aspilcueta-Borquis, Rusbel Raúl; Vargas, Fernando Miranda de

doi:10.1016/j.eti.2021.101866

Cited by 3 publications

(2 citation statements)

References 39 publications

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“…In particular, sheep manure stands out for improving thermal inertia and promoting environmental sustainability [32]. It is important to improve the thermal comfort and energy efficiency of buildings.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Resistance and Thermal Conductivity of Adobes for the Walls of Rural Dwellings in Extreme Minimum Climatic Conditions

Quispe

Mendoza

Ramos

et al. 2023

ijmst

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The aim was to determine the mechanical resistance and thermal conductivity of adobe bricks in extreme minimum weather conditions, which serve two physical functions: greater compression strength and lower thermal conductivity for the construction of rural housing walls in the Peruvian highlands. The study was experimental, where the soil texture class was determined using the Bouyoucos hydrometer. An experiment was designed with 58 adobe bricks with different composition percentages: clay soil, sand, sheep manure, and chilligua. The compression strength was measured with a hydraulic press and the thermal property was measured using a thermal conductivity meter for construction materials. Then, a polynomial regression model was estimated for the behavior of the compression strength and thermal conductivity of each adobe brick, and finally, classical optimization techniques were employed. The optimal adobe brick mixture resulted from the combination of inputs in the following proportions: 83.0% clay soil, 7.1% sand, 7.5% sheep manure, and 2.4% chilligua. This mixture generates greater compression strength of 31.85 kg/cm2 per unit of thermal conductivity in W/m·°K.

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Section: Introductionmentioning

confidence: 99%

“…In particular, sheep manure stands out for improving thermal inertia and promoting environmental sustainability [32]. It is a priority to carry out studies on the mechanical and thermal properties of adobe wall construction materials through testing [38,39].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Resistance and Thermal Conductivity of Adobes for the Walls of Rural Dwellings in Extreme Minimum Climatic Conditions

Quispe

Mendoza

Ramos

et al. 2023

ijmst

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Design, Technical and Economic Optimization of Renewable Energy-Based Electric Vehicle Charging Stations in Africa: The Case of Nigeria

et al. 2022

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The transportation sector accounts for more than 70% of Nigeria’s energy consumption. This sector has been the major consumer of fossil fuels in the past 20 years. In this study, the technical and economic feasibility of an electrical vehicle (EV) charging scheme is investigated based on the availability of renewable energy (RE) sources in six sites representing diverse geographic and climatic conditions in Nigeria. The HOMER Pro® microgrid software with the grid-search and proprietary derivative-free optimization techniques is used to assess the viability of the proposed EV charging scheme. The PV/WT/battery charging station with a quantity of two WT, 174 kW of PV panels, a quantity of 380 batteries storage, and a converter of 109 kW located in Sokoto provide the best economic metrics with the lowest NPC, electricity cost, and initial costs of USD547,717, USD0.211/kWh, and USD449,134, respectively. The optimal charging scheme is able to reliably satisfy most of the EV charging demand as it presents a small percentage of the unmet load, which is the lowest when compared with the corresponding values of the other charging stations. Moreover, the optimal charging system in all six locations is able to sufficiently meet the EV charge requirement with maximum uptime. A sensitivity analysis was conducted to check the robustness of the optimum charging scheme. This sensitivity analysis reveals that the technical and economic performance indicators of the optimum charging station are sensitive to the changes in the sensitivity variables. Furthermore, the outcomes ensure that the hybrid system of RE sources and EVs can minimize carbon and other pollutant emissions. The results and findings in this study can be implemented by all relevant parties involved to accelerate the development of EVs not only in Nigeria but also in other parts of the African continent and the rest of the world.

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Bridging the Gap between Biowaste and Biomethane Production: A Systematic Review Meta-Analysis Methodological Approach

Toufexis,

Makris,

Vlachokostas

et al. 2024

Sustainability

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Anaerobic digestion (AD) is a promising biowaste valorization technology for sustainable energy, circular economy, local energy community growth, and supporting local authorities’ environmental goals. This paper presents a systematic review meta-analysis methodology for biomethane estimation, using over 600 values of volatile solids (VS) content and biochemical methane potential (BMP) of six different waste streams, collected from 240 scientific studies. The waste streams include cow manure (CM), sheep/goat manure (SGM), wheat straw (WS), household waste (HW), organic fraction of municipal solid waste (OFMSW), and sewage sludge (SS). The statistical analysis showed a mean VS content of 11.9% (CM), 37.3% (SGM), 83.1% (WS), 20.8% (HW), 19.4% (OFMSW), and 10.6% (SS), with BMP values of 204.6, 184.1, 305.1, 361.7, 308.3, and 273.1 L CH4/kg VS, respectively. The case study of Kozani, Greece, demonstrated the methodology’s applicability, revealing a potential annual CH4 production of 15,429,102 m3 (corresponding to 551 TJ of energy), with SGM, WS, and CM as key substrates. Kozani, aiming for climate neutrality by 2030, currently employs conventional waste management, like composting, while many local business residual streams remain unused. The proposed model facilitates the design and implementation of AD units for a sustainable, climate-neutral future.

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Can adding liquid hatchery waste to sheep manure potentialize methane production and add value to sheep farming?

Cited by 3 publications

References 39 publications

Mechanical Resistance and Thermal Conductivity of Adobes for the Walls of Rural Dwellings in Extreme Minimum Climatic Conditions

Mechanical Resistance and Thermal Conductivity of Adobes for the Walls of Rural Dwellings in Extreme Minimum Climatic Conditions

Design, Technical and Economic Optimization of Renewable Energy-Based Electric Vehicle Charging Stations in Africa: The Case of Nigeria

Bridging the Gap between Biowaste and Biomethane Production: A Systematic Review Meta-Analysis Methodological Approach

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