Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery

Damaceno, Felippe Martins; Buligon, Eduardo L.; Restrepo, Juan Camilo Pires Salcedo; Chiarelotto, Maico; Niedzialkoski, Rosana Krauss; Costa, Luiz Antônio de Mendonça; Lucas, Jorge de; Costa, Mônica Sarolli Silva de Mendonça

doi:10.1016/j.scitotenv.2019.05.314

Cited by 10 publications

(5 citation statements)

References 39 publications

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“…This is comparable to other research results and is below the result of Harris et al [16] of 0.9 NL CH4 •g TS eli −1 , but for whose work a lower OLR of 1 g TS •L −1 •d −1 was applied. Damaceno et al [17], however, were able to achieve a maximum methane output of 0.38 NL CH4 •g TS eli −1 from a sweet potato flotate sludge mixture at an OLR of 1.8 g TS •L −1 •d −1 , but they also observed ammonia concentrations of a maximum of 3.3 g•L −1 in the reactor.…”

Section: Continuous Mesophilic Digestion Of Flotate Sludgementioning

confidence: 91%

Possibilities for Anaerobic Digestion of Slaughter Waste and Flotates for Biomethane Production

Philipp

Ackermann

Barbana

et al. 2023

Water

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Anaerobic digestion for biomethane production is an important tool regarding sustainable energy production. The objective of this study was to investigate the effects of the substrate composition and operating parameters on biomethane production during anaerobic digestion, focusing on the use of flotates and slaughterhouse waste as substrates with a high organic content. A novelty here was the use of a moving bed biofilm reactor (MBBR) with circulation pump for the anaerobic treatment of flotates, slaughter waste (SW), and their mixture. Flotates and waste from slaughterhouses offer a substrate with a high organic content. In this work, it was shown that both substrates provide a high biochemical methane potential (BMP). The highest methane yield was achieved by mixing both substrates. In continuous operation, special challenges arose, due to the high nitrogen and fat content of the substrates. These could be overcome by mixing the substrates and using a circulation pump in the reactor for improved back-mixing. As a result, the highest average methane yield of 0.65 NLCH4·gTS eli−1 was achieved in mesophilic operation at an organic loading rate (OLR) of 4.2 gTS·L−1·d−1.

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Section: Continuous Mesophilic Digestion Of Flotate Sludgementioning

confidence: 91%

Possibilities for Anaerobic Digestion of Slaughter Waste and Flotates for Biomethane Production

Philipp

Ackermann

Barbana

et al. 2023

Water

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“…Biofertilizer can be used to improve soil physical, chemical, and biological conditions by reducing the application of mineral fertilizers (Damaceno et al, 2019b) and even an alternative source of income through its commercialization in the case of small properties without arable land (Du et al, 2018). The treatments showed no statistically significant difference for the evaluated parameters, except for N, which showed a higher concentration with the use of recycle both in the inlet material and in the biofertilizer.…”

Section: Biofertilizermentioning

confidence: 95%

Anaerobic digestion of poultry litter: technical aspects to improve process performance and water saving

Bofinger,

Damaceno,

Restrepo

et al. 2024

Rev. DELOS

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In order to mitigate the significant electricity consumption in poultry farming the anaerobic digestion (AD) has been adopted. This study aimed to obtain information about the dilution, solid/liquid separation, mass balance, and reuse of the biofertilizer (recycle) to dilute poultry litter and to promote water saving while generating an organic fertilizer richer in nutrients. Five dilutions (1:4, 1:6, 1:8, 1:10, and 1:12) were submitted to mass balance test followed or not by solid/liquid separation on a sieve. The fractions of the dilutions 1:6 to 1:10 (poultry litter:water, w:v) were subjected to a test to determine the biochemical methane potential, according to the VDI-4630 standards. The highest potential biogas production was obtained in the liquid fraction of the dilution 1:6, reaching 179.4 L CH4 kg−1 VSadded. This condition was subjected to a semi-continuous feeding to evaluate the biofertilizer to replace water to dilute poultry litter (recycle). The results showed that the replacement of 40% of the dilution water by the biofertilizer had no inhibitory effect on the anaerobic digestion process, reaching values of 236 and 226 L CH4 kg−1 VSadded without and with the recycle, respectively. The decrease in the use of water and an increase in nutrients contained in the effluent (biofertilizer) is reflected in a 66% larger area for corn production. A detailed study of economic feasibility is essential for decision-making on investment and its recovery (payback).Thus, the liquid fraction of the dilution 1:6 with the recycle allowed a 40% saving in the use of clean water for poultry litter dilution, providing a biofertilizer with higher amounts of nitrogen, one of the nutrients most demanded by most crops.

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“…Effluents from meat processing are recognized as harmful and threatening due to the complex composition of fibers, proteins, fats, high organic contents, pathogens, and veterinary pharmaceuticals (Bustillo-Lecompte and Mehrvar 2017 ; Chang et al 2010 ). The chemical contents of wastewater from slaughterhouses are almost similar to municipal sewage (Damaceno et al 2019 ). These induce algal blooms that limit oxygen supply for the aquatic life and cause microbiological contaminations of water bodies.…”

Section: Slaughterhouse and Wet Market Wastesmentioning

confidence: 97%

Biowastes of slaughterhouses and wet markets: an overview of waste management for disease prevention

Al‐Gheethi

Ling

Rupani

et al. 2021

Environ Sci Pollut Res

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Slaughterhouse and wet market wastes are pollutants that have been always neglected by society. According to the Food and Agriculture Organization of the United Nations, more than three billion and nineteen million livestock were consumed worldwide in 2018, which reflects the vast amount and the broad spectrum of the biowastes generated. Slaughterhouse biowastes are a significant volume of biohazards that poses a high risk of contamination to the environment, an outbreak of diseases, and insecure food safety. This work comprehensively reviewed existing biowaste disposal practices and revealed the limitations of technological advancements to eradicate the threat of possible harmful infectious agents from these wastes. Policies, including strict supervision and uniform minimum hygienic regulations at all raw food processing factories, should therefore be tightened to ensure the protection of the food supply. The vast quantity of biowastes also offers a zero-waste potential for a circular economy, but the incorporation of biowaste recycling, including composting, anaerobic digestion, and thermal treatment, nevertheless remains challenging.

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Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery

Cited by 10 publications

References 39 publications

Possibilities for Anaerobic Digestion of Slaughter Waste and Flotates for Biomethane Production

Possibilities for Anaerobic Digestion of Slaughter Waste and Flotates for Biomethane Production

Anaerobic digestion of poultry litter: technical aspects to improve process performance and water saving

Biowastes of slaughterhouses and wet markets: an overview of waste management for disease prevention

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