Characterization of raw swine waste and effluents treated anaerobically: parameters for Brazilian environmental regulation construction aiming agricultural use

Moretti, Sarah Mello Leite; Bertoncini, Edna Ivani; Abreu-Junior, Cassio Hamilton

doi:10.1007/s10163-020-01115-1

Cited by 6 publications

(5 citation statements)

References 40 publications

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“… Blanco et al [ 33 ], Moretti et al [ 44 ], Cano-Hernández et al [ 45 ], Luján et al [ 50 ] Bi1 first effluent when starting the operation of the separator, Bi2 1 h after operation, Bi3 2 h after operation …”

Section: Resultsmentioning

confidence: 99%

“…The pH in the biol increased by 0.7 units compared to the LFS; this change can be attributed to the hardness of the water and the production of carbonates during the anaerobic digestion of organic matter [33]. Compared with the results presented by Moretti et al [44], the pH was slightly lower, and the EC was 2 times lower than in their study; this decrease may be due to the consumption of soluble compounds of the substrate by microorganisms [45]. Biol with an EC of up to 10 mS/cm can be used in soils with low salinity (less than 8 mS/cm) or crops resistant to this characteristic [45].…”

Section: Characterization Of Biolmentioning

confidence: 99%

“…Biol with an EC of up to 10 mS/cm can be used in soils with low salinity (less than 8 mS/cm) or crops resistant to this characteristic [45]. Another of the parameters that increased with the anaerobic digestion of LFS was the Ptot (21%), with values 7.8 times higher than those reported by Moretti et al [44], in biol obtained from a 20-day anaerobic digestion process, using flow piston reactors of 3 m in diameter and 12 m in length, in Canada.…”

Section: Characterization Of Biolmentioning

confidence: 99%

“…Physicochemical characteristics of the biol produced in the anaerobic digestion of the treatment system, in different sampling times Blanco et al[33], Moretti et al[44], Cano-Hernández et al[45], Luján et al[50] …”

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confidence: 99%

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Life cycle inventory for an organic swine waste treatment system

Fenández

Amaya-Chávez

Cuevas

et al. 2023

J Mater Cycles Waste Manag

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The aim of this study was to analyze the efficiency of a system of treatment of organic swine waste as a management tool in the transformation of organic waste into products of value in the swine industry. The residues from the pig farm and the products obtained (compost, biol and biogas) were quantified and characterized, as were the energy used within the process and the distribution of the products. The negative impacts on the soil and adjacent river, as well as the efficiency of the compost as fertilizers and biol in grass and corn crops, were evaluated. The subsystems were: S1-slurry separation, S2-anaerobic digestion, S3-composting solid fraction of slurry, and S4-composting of dead tissues. S2 was not efficient in obtaining biol, with COD and TSS required. The process requires 31.1 kW/d of electrical energy and 3.22 L/d of diesel. The biogas (35,486.0 m 3 /d) is used for cooking food and heating houses, whilst the compost (82 kg/d) and biol (7.72 m 3 /d) replace inorganic fertilizers in crops. The system was adequate for the transformation of 38,109.0 kg/d of waste into valuable products. The biol needs further treatment time or to couple biodigesters-another treatment. The pig farm can be considered eco-efficient.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Biolmentioning

confidence: 99%

Section: Characterization Of Biolmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Life cycle inventory for an organic swine waste treatment system

Fenández

Amaya-Chávez

Cuevas

et al. 2023

J Mater Cycles Waste Manag

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“…Additionally, 13 days were required for the elimination of S. senftemberg (10 4 CFU). It is worth noting that untreated swine manure can present an E. coli concentration of 10 7 MPN 100 mL −1 [ 38 ], so even after a 90% reduction, the bacteria load in manure remains high and is able to contaminate soil, where it can be active for more than 30 days. According to the World Health Organization, the recommendation for water reuse is an E. coli concentration lower than 10 3 MPN mL −1 for the fertigation of cultures not directly consumed [ 39 ].…”

Section: Resultsmentioning

confidence: 99%

Enterobacteria Survival, Percolation, and Leaching on Soil Fertilized with Swine Manure

Michelon

Peter

SCHNEIDER

et al. 2023

IJERPH

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Swine manure has a high load of pathogens, which can pose a risk to human and environmental health. In Brazil, studies evaluating the survival of pathogens in soil are scarce. Therefore, this study aimed to evaluate the survival, percolation, and leaching of enterobacteria in clayey soil after fertilization with swine manure. For this purpose, soil columns were fertilized with manure spiked with enterobacteria. The microorganisms’ behavior was monitored in terms of survival, percolation, and leaching with and without rain. Soil samples were collected, and Escherichia coli and Salmonella enterica serovar Senftemberg were quantified. The results indicated that E. coli survived for a longer period (43 days) than S. senftemberg (14 days). E. coli percolated quickly through the soil, leaching 60 cm in less than 5 min during rainy events and remaining viable for up to 24 h after the rain. The results show the importance of treating manure effectively before being added to the soil. An efficient treatment could be anaerobic digestion, followed by a pond system. Considering the characteristics of swine-producing regions, the load of effluents applied to the soil may percolate, leach, or run off and consequently contaminate water bodies with pathogens.

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