Removal of High Concentrations of Veterinary Antibiotics Through Co-composting of Swine Waste

Bohrer, Robson Evaldo Gehlen; Carissimi, Élvis; Wolf, Delmira Beatriz; Prestes, Osmar D.; Zanella, Renato; Rizzetti, Tiele Medianeira; López, Diosnel Antonio Rodríguez; Machado, Ênio Leandro; Silva, Danni Maísa da

doi:10.1007/s12649-020-00952-3

Cited by 9 publications

(3 citation statements)

References 55 publications

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“…The experiment was conducted in a covered industrial composting facility of animal recycling, located in southern Brazil, from August to November, which correspond to Spring in the southern hemisphere, during a period of 120 days. That was the standard composting period in the industry where the experiment was conducted, which is also within the periods suggested in other studies (90-150 days) [14,28]. The facility had an impermeable concrete floor, 2-m high lateral walls and a slurry containment and stormwater drainage systems at the back area.…”

Section: Composting and Raw Materialssupporting

confidence: 58%

Full-Scale Composting of Different Mixtures with Meal from Dead Pigs: Process Monitoring, Compost Quality and Toxicity

Guidoni

Martins

Guevara

et al. 2021

Waste Biomass Valor

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Abundant by-products of large swine industries, such as slaughterhouse sludge and carcasses, require adequate treatment to prevent negative effects of their direct disposal in the open environment. This study is aimed to evaluate the efficiency of composting using meal from dead pigs through physicochemical analyses and phytotoxic assays. Five treatments were tested, all including 50% sawdust: T1, with 50% slaughterhouse sludge (control); T2, with 20% slaughterhouse sludge and 30% meal from dead pigs; T3, with 10% slaughterhouse sludge and 40% meal from dead pigs; T4, with 20% organic stabilizing compost and 30% meal from dead pigs and T5, with 30% organic stabilizing compost and 20% meal from dead pigs. The phytotoxicity assays used lettuce, cucumber, celia, soybean, rice and wheat as bioindicators. Inclusion of meal from dead pigs was related to reduction in pH, C/N ratio, humidity and temperatures inside the pile, although thermophilic peaks lasted longer than 50 days and the final composts showed high content of nitrogen and phosphorous. The germination of bioindicators was reduced in all tested treatments, compared to the control. The composts from treatments that included meal from dead pigs presented acceptable nutrient content, which may indicate their use as organic fertilizers. However, after 4 months, all bioindicators in contact with such composts presented impaired germination.

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Section: Composting and Raw Materialssupporting

confidence: 58%

Full-Scale Composting of Different Mixtures with Meal from Dead Pigs: Process Monitoring, Compost Quality and Toxicity

Guidoni

Martins

Guevara

et al. 2021

Waste Biomass Valor

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“…Following a 92-day period, the removal e ciencies of TC in R1, R2, and R3 were respectively equal to 85, 90, and 92.5%, while they were 75, 77.5, and 82.5% for CIP, respectively. Similar to the results of Bohrer et al, a greater amount of OC and TC was obtained in the rst 15 days, which may be ascribed to sample heterogeneity [32].…”

Section: Biodegradation Of Tc and Cip During Aerobic Composting On Argssupporting

confidence: 87%

Biodegradation of Tetracycline and Ciprofloxacin in Aerobic Composting Using Different Microbial Sources

Mousavi,

Zazouli,

Gholami-Borujeni

2024

Waste Biomass Valor

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The objective of this study was to evaluate the degradation of tetracycline (TC) and cipro oxacin (CIP) during in-vessel composting in three different ratios of organic waste (OW), rice husk (RH), and return activated sludge (RAS) obtained from antibiotic industry wastewater treatment plant as a microbial source. The composting process was carried out in three cylindrical reactors (R1, R2, and R3) with a volume of 35.5 L. The OW/RH ratio was adjusted to 2:1, 1.4:1, and 1:1, and the RAS was added as a microbial source and to adjust the moisture content (MC). After the compost maturation phase, various concentrations of antibiotics were added to the different reactors. The HPLC method was used to measure the concentration of residual antibiotics. The physical, chemical, and bacterial properties of the compost were also analyzed throughout the process using standard methods. The ndings showed that the removal e ciencies of TC were 85%, 90%, and 92.5% in R1, R2, and R3, respectively, while those of CIP were 75%, 77.5%, and 82.5% after 92 days. It was observed that using microbial sources containing antibiotic-resistant bacteria (sludge from an antibiotic wastewater treatment plant), fungi, and actinomycetes in the composting process can be an effective method for the biodegradation of antibiotics in contaminated environments. Statement of NoveltyBiodegradation of Tetracycline and Cipro oxacin in aerobic composting using antibiotic factory wastewater treatment sludge as microbial source that have antibiotic resistance genes.

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“…Chlortetracycline, Doxycycline, Tetracycline and Oxytetracycline (Tetracyclines); Enro oxacin and Marbo oxacin (Fluroquimolonas); Florfenicol (Amphenicis); Tilmicosin and Tylosin (Macrolides) and Nor oxacin (Chylonomas). The VAs were homogenized in the swine manure and after being injected into the composting system where they were mixed with wood shavings (Bohrer et al, 2020), which was manually revolved every three days in order to oxygenate the composted waste (wood shavings + swine manure + VAs), until the end of the process.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of bacterial diversity in a swine manure composting system contaminated with veterinary antibiotics (VAs)

et al. 2023

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The objective of this work was identify microorganisms present in swine e uent composting system, under the contamination by most use veterinary drugs in Brazil. The composting took place for 150 days, where was addition of 200 liters of manure (these 25 liters initially contaminated with 17 antibiotics) in 25 kg of eucalyptus wood shavings. Microorganisms were measured at times (0 until 150 days), and were identi ed in the V3-V4 regions of the 16S RNAr for Bacteria, by means of next-generation sequencing (NSG). The results showing 7 different Bacteria Phyla and, 70 Bacteria Genus identi ed (more than 1% signi cance), in total there were more than 26 phyla and 585 genera of bacteria. The genus Brucella was found during mesophilic and thermophilic phases, this genus, not yet been reported in article involving composting process. These results suggested the potential of adaptation of the bacterial community with antibiotics denoted through the antibiotics. HighlightsMore than 726.00 Phyllum and Bacterial genus-level sequences have been identi ed.Phylum Proteobacterias showed greater abundance during the composting process.Proof of adaptability microorganisms (Clostridium bacteria) in aerobic process.First identi cation of Brucella genus of bacteria in swine composting process.

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Removal of High Concentrations of Veterinary Antibiotics Through Co-composting of Swine Waste

Cited by 9 publications

References 55 publications

Full-Scale Composting of Different Mixtures with Meal from Dead Pigs: Process Monitoring, Compost Quality and Toxicity

Full-Scale Composting of Different Mixtures with Meal from Dead Pigs: Process Monitoring, Compost Quality and Toxicity

Biodegradation of Tetracycline and Ciprofloxacin in Aerobic Composting Using Different Microbial Sources

Evaluation of bacterial diversity in a swine manure composting system contaminated with veterinary antibiotics (VAs)

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