Monitoramento dos Parâmetros Físico-Químicos na Compostagem de Resíduos Agroindustriais

Pedrosa, Talita Dantas; Farias, Camilo Allyson Simões de; Pereira, Rafaela Alves; Farias, Emanuel Tarcísio do Rêgo

doi:10.14583/2318-7670.v01n01a08

Cited by 23 publications

(25 citation statements)

References 6 publications

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“…The energy released in the form of heat is retained in the compost mass causing the temperature to rise. With favorable conditions of moisture, aeration and nutrients, the mesophilic microorganisms multiply by increasing the degradation activity, and consequently, the temperature reaches the thermophilic range rapidly (Pereira et al, 2013). According to Heck et al (2013), the thermophilic phase provides the reduction of bacterial populations from both domestic organic waste and food residues, contributing to the stabilization of the compound.…”

Section: Resultsmentioning

confidence: 99%

“…Considering for discussion the later results, the higher observed temperature. b) Moisture: performed weekly and in triplicate, where a sample from each pile was removed and transferred to a greenhouse (65 °C) until mass stabilization occurred (Pedrosa et al, 2013). Thus, the degree of moisture was calculated according to the equation: U (65 °C) = 100 (Initial weight -Constant mass)/Initial weight.…”

Section: Methodsmentioning

confidence: 99%

“…Of these factors, Pedrosa et al (2013) points out mainly those related to the inhibition and/or development of microbiological activity, such as temperature, pH, aeration, C/N ratio and moisture content.…”

Section: Introductionmentioning

confidence: 99%

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Monitoring of Physical Parameters in Organic Waste Composting

Ferreira¹,

Dias²,

Ferreira³

et al. 2018

JAS

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The volume of biodegradable solid waste and its inadequate disposal have led to serious environmental problems, requiring efficient measures that prioritize the recycling of these wastes, promoting sustainability. The objective of this research was to monitor the behavior of physical parameters during the organic waste composting process. For this, 5 piles of organic waste were built through the composting technique developed according to the windrow method. The piles were composed of 70% of plant material, and 30% varied between manure and food remains. The piles were composed of 70% of plant material, and 30% varied between manure and food remains. The proportions were: I pile, 1:1 (15% manure and 15% rest of food); Pile II, 2:1 (20% manure and 10% rest of food); Cell III, 1:2 (10% manure and 20% rest of food); (30% manure and 0% rest of food) and the V pile in the ratio of 0:3 (0% manure and 30% rest of food). The evaluated parameters were temperature, moisture, pH, TOC, TN and C/N ratio. During the process of compost maturation, the parameters evaluated were kept within the established standards for the composting process.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Monitoring of Physical Parameters in Organic Waste Composting

Ferreira¹,

Dias²,

Ferreira³

et al. 2018

JAS

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“…As concentrações de nitrogênio encontradas são baixas, porém, maiores do que o valores encontrado por PEDROSA et al (2013). A instrução normativa 25 (MAPA, 2009) define que os fertilizantes devem apresentar uma concentração maior do que 0,5% de nitrogênio.…”

Section: Concentração De Nitrogêniounclassified

Ciclagem de Nutrientes por Meio da Transformação de Resíduos em Fertilizante Orgânico

Pedrosa¹,

Ascoli²,

Viola³

et al. 2016

NATIVA

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RESUMO:O setor agrícola tem gerado e lançado no ambiente toneladas de resíduos advindos tanto das práticas agrícolas como das práticas correlatas ao setor. Vista a necessidade de se obter soluções para formas de tratamento dos resíduos produzidos pelas atividades agrícolas, a utilização da compostagem dos resíduos é uma alternativa. Este trabalho teve como objetivo avaliar as características de compostos gerados pela compostagem de diferentes proporções de resíduos advindos das agroindústrias de processamento de frutas, de abate bovino e processamento de leite. Cinco diferentes concentrações foram testadas em forma de pilhas, sendo variada a concentração do resíduo do processamento de leite (gordura gerada no sistema de tratamento de resíduos do laticínio). Os resultados demonstraram que a utilização desses resíduos leva a uma decomposição eficiente, gerando um composto sem atratividade de vetores, cor escura e cheiro de terra molhada. O valor do pH ao final do processo mostrou-se adequado, com valores próximos de 9,0. A temperatura nas pilhas atingiu pelo menos 45 °C, indicando a sanitização dos compostos. Os valores de concentração de nitrogênio e fósforo foram baixos quando comparados à legislação. A relação carbono/nitrogênio apresentou valores ora dentro ora fora do estabelecido pela legislação. O composto apresenta potencial de utilização como fonte de matéria orgânica, entretanto, a utilização deve ser complementada com outras fontes de nutrientes como nitrogênio e fósforo.Palavras-chave: compostagem, resíduos orgânicos, adubação. Cycling of nutrients through transformation of waste into organic fertilizer ABSTRACT:The agricultural sector has generated and released tons of waste in the environment, whether arising from agricultural practices or other practices related to this sector. Given the need to obtain solutions for dealing with the waste produced by agricultural activities, the use of waste composting is an alternative. This work aimed to evaluate the characteristics of compounds generated by the composting of different proportions of waste arising from the agroindustries working with fruit processing, bovine slaughtering and milk processing. Five different concentrations were tested in the form of stacks, with varied concentrations of the waste of milk processing (fat generated in the waste treatment system of the dairy product). The results showed that the use of these waste materials leads to an efficient decomposition, thus generating a compound without attractiveness of vectors, dark colored, and with smell of wet earth. The pH value at the end of the process was adequate, with values close to 9.0. The temperature in the stacks reached at least 45 °C, thus indicating the sanitization of the compounds. The concentration values of nitrogen and phosphorus were low compared to the current legislation. The carbon/nitrogen ratio has presented values both within and beyond the legislation. The compound unveils potential use as a source of organic matter; however, the use should be enhanced with other...

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“…The search for new biomolecules requires the isolation of microorganisms and the understanding of its genetic heterogeneity and metabolic (García and Bianchi, 2015;Pedrosa et al, 2013). The fungi are considered as promising sources of new biomolecules and have been employed for therapeutic use (Strobel and Daisy, 2003).…”

Section: Introductionmentioning

confidence: 99%

Rapid microbiological tests for prospecting new fungal strains with high potentiality for the pectinolytic enzymes production

Cangussu¹,

Felix²,

Araujo³

et al. 2016

Afr. J. Microbiol. Res.

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Prospecting of new isolates producers of pectinolitic enzymes were performed with cultivation of substrates of rice, soybean and corn bran. Pectinolitic enzymes were observed in cultures of the isolates NFC 1, NFC 2, NFC 4, NFC 5 and NFC 6 identified as belonging to the genus Aspergillus sp. Isolates NFR 1, NFR 2 and NFS1 were identified as belonging to the genus Rhizopus and NFC 3 belonging to the genus Cladosporium; however, pectinolitic enzymes production was not observed. The polygalacturonase (PG) production in submerged fermentation of Aspergillus NFC 2 in culture medium proposed (SM) at 28 and 37°C was quantified by agar diffusion and spectrophotometric methods. The highest PG production was obtained at 28°C by greater formation of halo degradation pectin and the activity measured by spectrophotometric methods. The activity of PG obtained was 7 U.mL -1 with volumetric productivity greater in the first 24 h of fermentation both at 28 and 37°C. A decrease in PG synthesis occurred after 48 to 120 h. The study allowed, by means of rapid microbiological tests, the selection of new isolates fungi for PG production and the definition of crucial stages for cultivation in liquid medium.

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Monitoramento dos Parâmetros Físico-Químicos na Compostagem de Resíduos Agroindustriais

Cited by 23 publications

References 6 publications

Monitoring of Physical Parameters in Organic Waste Composting

Monitoring of Physical Parameters in Organic Waste Composting

Ciclagem de Nutrientes por Meio da Transformação de Resíduos em Fertilizante Orgânico

Rapid microbiological tests for prospecting new fungal strains with high potentiality for the pectinolytic enzymes production

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