Cassava wastewater (manipueira) treatment using a two-phase anaerobic biodigestor

Barana, Ana Cláudia; Cereda, Marney Pascoli

doi:10.1590/s0101-20612000000200010

Cited by 24 publications

(15 citation statements)

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“…Ressalta-se que a manipueira utilizada nos dois trabalhos citados anteriormente foi tratada antes de sua utilização ocorrendo, com isto, redução dos nutrientes presentes na manipueira, sobretudo, K, Ca, Mg, Na, Fe e Zn os quais, quando em excesso, podem ser prejudiciais às plantas; assim, a divergência entre os resultados encontrados pelos referidos autores e os resultados obtidos nesta pesquisa parece estar associada ao fato da manipueira utilizada ser proveniente de fecularia que, antes da utilização, foi tratada contribuindo para a diminuição da concentração da carga orgânica, de macro e micronutrientes encontrados no resíduo, conforme relatam Barana & Cereda (2000).…”

Section: Resultsunclassified

“…Dos subprodutos gerados no processo de industrialização da mandioca, a manipueira é o mais problemático visto que possui elevada concentração de matéria orgânica e linamarina, que é um glicosídeo cianogênico tóxico, do qual provém o ácido cianídrico (HCN), que pode causar sérios problemas ao meio ambiente quando descartado inadequadamente (Vieites, 1998;Barana & Cereda, 2000).…”

Section: Revista Brasileira De Engenharia Agrícola E Ambientalunclassified

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Desenvolvimento e acúmulo de macronutrientes em plantas de milho biofertilizadas com manipueira

Barreto

Magalhães

Rolim

et al. 2014

Rev. bras. eng. agríc. ambient.

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Objetivou-se, neste estudo, avaliar o desenvolvimento vegetativo e o acúmulo de macronutrientes em plantas de milho submetidas às doses de manipueira. O experimento foi conduzido em ambiente protegido no período de março a maio de 2011. O delineamento experimental foi inteiramente casualizado em esquema fatorial 2 (tipos de solo: franco-arenoso e franco-argiloso) × 4 (doses de manipueira: 0; 11,2; 22,4 e 44,8 m³ ha-1), com oito repetições. As variáveis analisadas foram: altura das plantas, diâmetro de colmos, número de folhas, matéria fresca e matéria seca da parte aérea das plantas e teores de N, P, K, Ca e Mg no tecido foliar. O aumento das doses de manipueira elevou o conteúdo de massa fresca, o teor de nitrogênio e potássio da parte aérea das plantas, mas diminuiu a altura das plantas e o teor de magnésio na parte aérea das plantas. Os acréscimos de matéria seca e de cálcio na parte aérea das plantas foram maiores no solo franco-arenoso.

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Section: Resultsunclassified

Section: Revista Brasileira De Engenharia Agrícola E Ambientalunclassified

Desenvolvimento e acúmulo de macronutrientes em plantas de milho biofertilizadas com manipueira

Barreto

Magalhães

Rolim

et al. 2014

Rev. bras. eng. agríc. ambient.

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“…The potential use of cassava wastewater as a fertilizer was firstly investigated by Fioretto (2000). Barana and Cereda (2000) found that the better treatment for this wastewater was in reactors of separated phases (acidogenic and methanogenic). Ribas and Cereda (2003) investigated that in the acidogenic separated phase, salts of organic acids were formed after neutralization and were commonly sodium hydroxide, calcium hydroxide, sodium carbonate or bicarbonate.…”

Section: Introductionmentioning

confidence: 97%

Use of cassava wastewater treated anaerobically with alkaline agents as fertilizer for maize (Zea mays L.)

Ribas

Cereda

Bôas

2010

Braz. arch. biol. technol.

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“…The results obtained during the anaerobic biodegradability assays of the pretreated effluent with surfactin are shown in Table 4. The VA/TA ratio indicates stability of a reactor and it was observed that after the first week of digestion, VA/TA ratio was already in the reactor stability range, which according to Barana and Cereda (2000) varies from 0.1 to 0.3. Values of about 0.4 have shown some instability and when they were superior to 0.8, there could be a collapse of digestion.…”

Section: Anaerobic Biodegradation Of a Pretreated Effluentmentioning

confidence: 99%

Use of biosurfactant surfactin produced from cassava wastewater for anaerobic treatment of effluent from a poultry slaughterhouse

Cosmann¹,

Gomes²,

Gomes³

et al. 2017

Afr. J. Biotechnol.

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The use of a biosurfactant surfactin produced by Bacillus subtilis LB5a in cassava growth medium (cassava wastewater) was evaluated to treat anaerobically, the effluent from a poultry slaughterhouse. During the effluent pretreatment, effects of surfactin concentration factors were evaluated, considering the ones which were superior and below its critical micelle concentration (CMC = 28 mg L -1 ): 6, 13, 27, 31, 48, 73 and 56 mg L -1 and temperature (25, 30, 42.5, 55 and 60°C) up to 6 h, using the rotational central composite design. During anaerobic treatment, flasks were filled with anaerobic sludge as inoculum and a pretreated effluent for 4.5 h in its different concentrations of surfactin. Reactors were connected to eudiometers under static system at 34°C. During the pretreatment phase, there was a direct ratio between temperature and surfactin concentrations according to the increase of organic matter solubilization, measured by soluble chemical oxygen demand (SCOD). These results have shown surfactin applicability produced by B. subtilis LB5a during the anaerobic treatment of effluent from a poultry slaughterhouse; as for all treatments, there was no inhibition of microbial consortium of the anaerobic sludge. SCOD removal was above 80%, while oil and greases removal was above 70%, plus a propitious specific methane yield.

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Cassava wastewater (manipueira) treatment using a two-phase anaerobic biodigestor

Cited by 24 publications

References 0 publications

Desenvolvimento e acúmulo de macronutrientes em plantas de milho biofertilizadas com manipueira

Desenvolvimento e acúmulo de macronutrientes em plantas de milho biofertilizadas com manipueira

Use of cassava wastewater treated anaerobically with alkaline agents as fertilizer for maize (Zea mays L.)

Use of biosurfactant surfactin produced from cassava wastewater for anaerobic treatment of effluent from a poultry slaughterhouse

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