Otimização da eficiência de remoção de matéria orgânica no sistema de filtros anaeróbios

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Bibliographic Details
Main Authors: Kelvia Lopes Pereira, Rui Emanuel Silva Borges, Vagner Sales Santos, Flávia Kassia Sousa Alves, Anielle Santos Brito
Format: Article
Language:English
Published: Grupo Verde de Agroecologia e Abelhas (GVAA) 2014-10-01
Series:Revista Verde de Agroecologia e Desenvolvimento Sustentável
Online Access:http://www.gvaa.com.br/revista/index.php/RVADS/article/view/2306
Description
Summary:<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:RelyOnVML /> <o:AllowPNG /> </o:OfficeDocumentSettings> </xml><![endif]--><p class="MsoNormal" style="margin-bottom: .0001pt; text-align: justify; line-height: normal; mso-layout-grid-align: none; text-autospace: none;"><span style="font-size: 12.0pt; font-family: 'Times New Roman','serif';">O presente trabalho tem como objetivo</span><span style="font-size: 12.0pt; font-family: 'Times New Roman','serif';">avaliar a remoção de matéria orgânica no sistema de filtro anaeróbio bem como a sua estabilidade operacional. O estudo foi desenvolvido na estação de tratamento de esgoto da Faculdade de Tecnologia Centec-<span style="mso-bidi-font-weight: bold;">– FATEC Cariri</span>,<span style="mso-bidi-font-weight: bold;"> localizada à Rua Amália Xavier de Oliveira, sem nº, Triângulo, município de Juazeiro do Norte – Ceará. </span>E </span><span style="font-size: 11.5pt;">o </span><span style="font-size: 12.0pt; font-family: 'Times New Roman','serif';">monitoramento da estabilidade e desempenho operacional, foi realizado por meio de amostras coletadas quinzenalmente na entrada (afluente) e saída (efluente) do reator, o que possibilitou-se analisar os seguintes parâmetros: pH, temperatura, demanda química de oxigênio (DQO), demanda bioquímica de oxigênio (DBO). De acordo com os resultados obtidos conclui-se que o pH no afluente e efluente apresentou resultados satisfatórios mantendo-se dentro da faixa neutra, no que se refere aos valores de temperatura no afluente e efluente foi considerada ótima para a digestão anaeróbia.</span><span style="font-size: 12.0pt; font-family: 'Times New Roman','serif';">Com relação à eficiência de remoção de matéria orgânica expressa na forma de DQO e DBO, apresentaram valores. Este fato pode ser atribuído à descontinuidade da alimentação do filtro bem como os reagentes químicos que são lançados sem nenhum tratamento, inibindo a metanogênica. E quanto à média do valor de DQO do efluente foi de 205,8 mg/l, ou seja, este efluente não se enquadrou dentro dos limites estabelecido pela portaria n° 154/2002 da SEMACE que cita valores de DQO de 200 mg/l.</span></p><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves /> <w:TrackFormatting /> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning /> <w:ValidateAgainstSchemas /> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF /> <w:LidThemeOther>PT-BR</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables /> <w:SnapToGridInCell /> <w:WrapTextWithPunct /> <w:UseAsianBreakRules /> <w:DontGrowAutofit /> <w:SplitPgBreakAndParaMark /> <w:DontVertAlignCellWithSp /> <w:DontBreakConstrainedForcedTables /> 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