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000738842.pdf: 4152648 bytes, checksum: f07ffe3e58bd6e857214586888af5ae2 (MD5) / As águas residuárias de suinocultura apresentam altas concentrações de matéria orgânica, nutrientes e patógenos. Esse resíduo é passível de ser tratado por via anaeróbia, com vantagens como a produção de biogás e o efluente final com poder poluente reduzido. Foram avaliados dois sistemas de tratamento anaeróbio de águas residuárias de suinocultura, o primeiro, constituído por dois reatores UASB em dois estágios seguidos de wetlands e o outro sistema de tratamento, composto por reator UASB, filtro anaeróbio, filtro biológico percolador, decantador e wetlands, instalados em série na remoção de matéria orgânica, e nutrientes e na produção de metano sob tempos de detenção hidráulico (TDH) de 11 a 40 h e cargas orgânicas volumétricas (COV) de 4,3 a 18,7 g DQO total (L d)-1. No sistema de tratamento anaeróbio I, constituído por dois reatores UASB em série, os valores máximos de remoção de demanda química de oxigênio total (DQO total), sólidos suspensos voláteis (SSV), fósforo total (P-total), nitrogênio Kjeldhal (NK), cobre (Cu), zinco (Zn) e coliformes termotolerantes foram 89, 92, 70, 58, 80, 95 e 99,56 % respectivamente. No sistema II, com reator UASB e filtro anaeróbio, em série, as médias máximas de remoção de DQO total, SSV, P-total, NTK, Cu, Zn e coliformes termotolerantes foram 87; 87; 64; 55, 80; 95 e 99,90 % respectivamente. Os valores máximos da produção volumétrica de metano foram de 0,419 e 0,488 L CH4 (L reator d)-1 nos sistemas I e II, respectivamente. Em relação ao pós-tratamento com filtro biológico percolador e decantador os valores de DQO total, SSV, P-total, NTK, Cu, Zn e coliformes termotolerantes aumentaram para 92; 87; 86; 62, 87; 97 e 99,93 %, respectivamente. Com wetlands as eficiências de remoção aumentaram para 98; 98, 98; 94; 88; 98 e 99,99 %, respectivamente, para DQO total, SSV, P-total, NK, Cu, Zn e coliformes ter... / The swine wastewater have high concentrations of organic matter, nutrients and pathogens. This residue is likely to be treated anaerobically, with advantages such as biogas production and the final effluent with low polluting power. Two systems of anaerobic treatment of swine wastewater, the first, consisting of two-stage UASB followed by wetlands and other treatment system consisting of UASB reactor, anaerobic filter, trickling filter, decanter and wetlands, were evaluated at in series in the removal of organic matter and nutrients and the production of methane in hydraulic retention time (HRT) from 11 to 40 h and volumetric organic load (VOL) from 4.3 to 18.7 g total COD (L d )-1. In anaerobic treatment system I, consisting of two UASB reactors in series, the maximum values of removing total chemistry oxygen demand (total COD), volatile suspended solids (VSS), total phosphorous (total P), Kjeldahl nitrogen (NK), copper (Cu), zinc (Zn) and thermotolerants coliforms were 89, 92, 70, 58, 80, 95, and 99.56 %, respectively. In system II, with UASB and anaerobic filter in series, the maximum average total COD removal, SSV, total-P, KN, Cu, Zn and thermotolerants coliforms were 87, 87, 64, 55, 80, 95 and 99,90 % respectively. The maximum values of the volumetric methane production were 0.419 and 0.488 L CH4 (L reactor d) -1 in systems I and II, respectively. In relation to post- treatment with biological trickling filter and decanter values of total COD, VSS, total-P, KN, Cu, Zn and thermotolerants coliforms increased to 92, 87, 86, 62, 87, 97 and 99.93 %, respectively. With the wetlands, the removal efficiencies increased to 98, 98, 98, 94, 88, 98 and 99,99 %, respectively, for total COD, VSS, total-P, NK, Cu, Zn and thermotolerants coliform . The anaerobic reactors were effective to remove organic matter and contribute to the removal of nutrients, although the system I has advantages of ...
Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.unesp.br:11449/103874 |
Date | 27 October 2013 |
Creators | Silva, Gilvânia Campos [UNESP] |
Contributors | Universidade Estadual Paulista (UNESP), Oliveira, Roberto Alves de [UNESP] |
Publisher | Universidade Estadual Paulista (UNESP) |
Source Sets | IBICT Brazilian ETDs |
Language | Portuguese |
Detected Language | English |
Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
Format | xliv, 287 p. : il. |
Source | Aleph, reponame:Repositório Institucional da UNESP, instname:Universidade Estadual Paulista, instacron:UNESP |
Rights | info:eu-repo/semantics/openAccess |
Relation | -1, -1 |
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