Use of Cassava Wastewater Treated Anaerobically with Alkaline Agents as Fertilizer for Maize (Zea mays L.)

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFerreira Ribas, Maria Magdalena
dc.creatorCereda, Marney Pascoli
dc.creatorVillas Boas, Roberto Lyra
dc.date2014-05-20T13:21:38Z
dc.date2014-05-20T13:21:38Z
dc.date2010-01-01
dc.date.accessioned2017-04-05T19:52:22Z
dc.date.available2017-04-05T19:52:22Z
dc.identifierBrazilian Archives of Biology and Technology. Curitiba-parana: Inst Tecnologia Parana, v. 53, n. 1, p. 55-62, 2010.
dc.identifier1516-8913
dc.identifierhttp://hdl.handle.net/11449/6244
dc.identifierS1516-89132010000100007
dc.identifierWOS:000275325800007
dc.identifierS1516-89132010000100007-en.pdf
dc.identifierhttp://dx.doi.org/10.1590/S1516-89132010000100007
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/855195
dc.descriptionThe 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.
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherInst Tecnologia Parana
dc.relationBrazilian Archives of Biology and Technology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectReuse
dc.subjectmanipueira, anaerobic digestion, hydroxide sodium
dc.subjectdolomitic limestone
dc.titleUse of Cassava Wastewater Treated Anaerobically with Alkaline Agents as Fertilizer for Maize (Zea mays L.)
dc.typeOtro


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