| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Use of cassava wastewater treated anaerobically with alkaline agents as fertilizer for maize (Zea mays L.)
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| Autores: |
Ribas,Maria Magdalena Ferreira
Cereda,Marney Pascoli
Villas Bôas,Roberto Lyra
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| Data: |
2010-02-01
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| Ano: |
2010
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| Palavras-chave: |
Reuse
Manipueira
Anaerobic digestion
Hydroxide sodium
Dolomitic limestone
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| Resumo: |
The wastewater of the processing of cassava's flour (manipueira) was submitted to the anaerobic treatment in two phases: acidogenic and methanogenic. In the acidogenic phase, the wastewater was stabilized with NaOH (ASH) and with limestone (ASL). After that, both stabilized effluents were treated by a methanogenic reactor. Then, the effluent of the methanogenic reactor was used as fertilizer on maize in the initial growth stage (30 days), cultivated in pots in a greenhouse. The treatments were T1: control without urea addition (only N from soil); T2: NPK (2.2 g of urea with 45% of N); T3: ASH (84 mL.kg soil-1); T4: ASL (102 mL.kg soil-1); T5: double dose ASH (168 mL.kg soil-1) and T6: double dose ASL (204 mL.kg soil-1). Each treatment was composed by 4 plants/pot in five repetitions. It was observed that all the treatments with stabilized wastewater had favorable effect to the soil pH (> than 7.5) and basis saturation (V%) in the soil around to 90%. The performances of nitrogen absorption by the maize plants were 64, 54, 80 and 78% for T3, T4, T5 and T6, respectively.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100007
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132010000100007
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.53 n.1 2010
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| Direitos: |
info:eu-repo/semantics/openAccess
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