https://www.socictopen.socict.org/files/original/05942ef8a30620eda6ac39baa5fcfc02.pdf d9e960f3ba4046817fbb16a5e0275203 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Biodigestão anaeróbia de dejetos de suínos com e sem separação da fração sólida em diferentes tempos de retenção hidráulica Anaerobic biodigestion of swine manure with and without separation of the solid fraction in different hydraulic retention times Creator An entity primarily responsible for making the resource Jorge de Lucas Junior, Marco A. P. Orrico Júnior, Ana C. A. Orrico Description An account of the resource O objetivo deste trabalho foi avaliar o processo de biodigestão anaeróbia utilizando dejetos de suínos, com e sem separação da fração sólida, considerando-se diferentes tempos de retenção hidráulica. Para tanto, foram utilizados biodigestores tubulares semicontínuos abastecidos com água residuária de suinocultura, com e sem separação da fração sólida (CSFS e SSFS, respectivamente), manejados com tempos de retenção hidráulica (TRH) iguais a 36; 29; 22 e 15 dias. A eficiência dos tratamentos foi avaliada pela redução dos números mais prováveis de coliformes totais e fecais, teores de fibra em detergentes neutro e ácido, demandas química e bioquímica de oxigênio e dos potenciais de produção de biogás e metano. A qualidade do biofertilizante foi avaliada quanto aos teores de macro e micronutrientes. A separação da fração sólida acarretou decréscimo nos teores de fibra dos afluentes, o que contribuiu para o aumento da eficiência da produção de metano. Foram observados valores de 0,47 e 0,75 m³ CH4 kg-1 SV adicionado para os afluentes SSFS e CSFS, respectivamente, no TRH de 15 dias. Com o aumento do TRH, houve acréscimo médio de 50% no potencial de produção de metano kg-1 de SV adicionado. Não foram observadas diferenças significativas nas reduções de coliformes fecais e totais, sendo a maior redução de 3,6 10(9) para 3,6 10² NMP 100 mL-1 para o TRH de 36 dias CSFS.This work aimed to evaluate the anaerobic biodigestion process by using swine manure with and without separation of the solid fraction and considering different hydraulic retention times. For such purpose semi continual plug flow biodigestors were used, with residual water from a pig farm with and without separation of the solid fraction, managed with 36; 29; 22 e 15 days of hydraulic retention. Efficiency of the treatments was evaluated by the reduction of the most probable number of total and fecal coliforms, fiber content, chemical and biochemical oxygen demands, besides the biogas and methane production potential and biofertilizer quality. The separation of the solid fraction decreased in fiber content from effluents, what contributed to an increase in the efficiency in the methane production. The observed values were: 0.47 and 0.75 m³ CH4 kg-1 VS added to the effluent with and without separation of the solid fraction respectively, in the HRT of 15 days. With the increase of HRT there was a medium increase of 50% in the production of potential of methane kg-1 VS added. It was not observed significant differences in reduction of fecal and total coliforms. The largest reduction was 3.6 10(9) to 3.6 10² NMP 100 mL-1 for the 36 days HRT. Date A point or period of time associated with an event in the lifecycle of the resource 2009 Subject The topic of the resource HRT, TRH, coliformes, coliforms, swine manure, sólidos totais, total solids Identifier An unambiguous reference to the resource within a given context 10.1590/S0100-69162009000300014 Source A related resource from which the described resource is derived Engenharia Agrícola Publisher An entity responsible for making the resource available Sociedade Brasileira de Engenharia Agrícola Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Agriculture (General) Relation A related resource <a href="http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0100-69162009000300014" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0100-69162009000300014</a>