Effects of aeration and season on the composting of slaughterhouse waste

Vilela, Ranielle Nogueira da Silva; Orrico, Ana Carolina Amorim; Orrico, Marco Antônio Previdelli; Aspilcueta-Borquis, Rusbel Raúl; Tomazi, M.; Oliveira, Juliana Dias de; Ávila, Márcio Romeiro de; Santos, Francielle Torres dos; Leite, Brenda Kelly Viana

doi:10.1016/j.eti.2022.102505

Cited by 11 publications

(7 citation statements)

References 28 publications

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“…10 Furthermore, excessive forced aeration may remove heat and moisture from inside the windrow and compromise the effectiveness of the process. 11 Using partially open composting cells is an alternative approach that may provide the same composting efficiency in fully sealed cells with no need for such frequent aeration. 12 Building composting cells with perforated walls (CCPW) was proposed by Vilela et al 11 to treat cattle slaughterhouse waste.…”

Section: Introductionmentioning

confidence: 99%

“…11 Using partially open composting cells is an alternative approach that may provide the same composting efficiency in fully sealed cells with no need for such frequent aeration. 12 Building composting cells with perforated walls (CCPW) was proposed by Vilela et al 11 to treat cattle slaughterhouse waste. According to those authors, the use of CCPW was efficient and provided proper aeration inside the pile, doing away with the need for forced aeration.…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, the use of equipment and tubing required for such aeration leads to higher investments and costs for the composting process 10 . Furthermore, excessive forced aeration may remove heat and moisture from inside the windrow and compromise the effectiveness of the process 11 …”

Section: Introductionmentioning

confidence: 99%

“…Despite the advantages of using CCPW reported by Vilela et al 11 for the treatment of cattle slaughterhouse waste, the question stands regarding whether the method would be equally effective for bird hatchery waste since it has very different chemical and physical compositions. Another factor that also raises questions about the effectiveness of using CCPW are environmental conditions as the windrows are more exposed to the environment during winter, which may lead to higher material dehydration rates and lower temperatures inside the windrows (cold and dry winters).…”

Section: Introductionmentioning

confidence: 99%

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Effects of aeration and season on the composting of hatchery waste

de Oliveira,

Orrico,

da Silva Vilela

et al. 2023

Env Prog and Sustain Energy

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Hatchery waste is characterized as biomass with a high concentration of pollutants, therefore, such waste should be composted in static windrows in the initial phase of the process. The current research was carried out aiming to investigate the need for forced aeration in static piles built in cells with perforated walls during the composting of hatchery waste, in association with a bulking agent, during winter and summer. Aeration resulted in greater breakdown of volatile solids (VS), carbon (C), and lignin in the summer up to 50 days of composting. However, at 70 and 90 days, the results between aerated and non‐aerated windrows were similar. The highest N breakdown took place during winter with no aeration. The concentrations of humic acids were influenced only by the season and were higher in the compost generated during summer. Micronutrient concentrations in the compost were impacted by season and were higher in the summer. It is concluded that, in winter, forced aeration is only recommended after 50 days of composting, whereas in summer, forced aeration was beneficial throughout the composting process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of aeration and season on the composting of hatchery waste

de Oliveira,

Orrico,

da Silva Vilela

et al. 2023

Env Prog and Sustain Energy

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“…Compositing static piles in partially open environments is an alternative approach that provides the same or higher composting e ciency in terms of treating and recycling waste, with less resource use, as forced aeration is reduced or even unnecessary, depending on the preparation conditions of the pile and the material (Trautmann and Krasny, 1997). The construction of composting cells with perforated walls (CCPW) has been proposed to promote a more e cient organic waste degradation process, allowing greater aeration throughout the entire pile, without posing risks that may be associated with forced aeration, such as excessive heat removal and dry air injection, which can reduce the humidity of the medium (Vilela et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Might be the forced aeration an alternative to improve the efficiency of composting and quality of fertilizer?

Oliveira

Orrico

Vilela

et al. 2022

Preprint

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The objective of this study was to evaluate the influence of forced aeration and season on hatchery waste composting in static windrows with perforated walls. there were three well-defined thermophilic phases during composting, with the first occurring immediately after the formation of the windrows and the others occurring after turnovers at 50 and 70 days of composting. Aeration resulted in greater degradation (p<0.01) of volatile solids (VS), carbon (C), and lignin in the composting windrows during the summer up to 50 days of process, in comparison to no aeration piles. However, at 70 and 90 days of composting, the results were similar between aerated and nonaerated windrows. The greatest (p<0.01) degradation of nitrogen (N) occurred during the winter and in the absence of aeration (55.25%). Season influenced (p<0.05) the concentrations of humic acids, and they were higher in the compost generated during the summer than generated during the winter. The concentrations of Mg, Fe and Na were influenced by the season, with higher values (p<0.01) in the summer, however they were not affected by aeration. In the winter, aeration is recommended after 50 days of composting, whereas in summer, forced aeration is beneficial for N conservation and humic acid formation.

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Slaughter Wastes-A Curse or Blessing: An Appraisal

Nauman

Arshad

2023

Climate Changes Mitigation and Sustainable Bioenergy Harvest Through Animal Waste

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Effects of aeration and season on the composting of slaughterhouse waste

Cited by 11 publications

References 28 publications

Effects of aeration and season on the composting of hatchery waste

Effects of aeration and season on the composting of hatchery waste

Might be the forced aeration an alternative to improve the efficiency of composting and quality of fertilizer?

Slaughter Wastes-A Curse or Blessing: An Appraisal

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