Ammoniacal Nitrogen
Mostrando 13-24 de 35 artigos, teses e dissertações.
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13. Aerobic stability of sugar cane silages with a novel strain of Lactobacillus sp. isolated from sugar cane
The objective of this research was to evaluate the effect of the addition of two Lactobacillus strains on the aerobic stability of the sugar cane (Saccharum spp.) silages. The experiment was carried out in a completely randomized design with three replicates in split-plot in time scheme, so that the treatments (silages without inoculant and with novel strain
Revista Brasileira de Zootecnia. Publicado em: 2012-02
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14. Performance of pilot-scale vertical flow constructed wetlands with and without the emergent macrophyte Spartina alterniflora treating mariculture effluent
Vertical flow constructed wetlands, planted with and without Spartina alterniflora, were tested for the treatment of mariculture wastewater. Wetlands with and without the emergent macrophyte produced reductions of 89 and 71% for inorganic solids, 82 and 96% for organic solids, 51 and 63% for total nitrogen, 82 and 92% for ammoniacal nitrogen, 64 and 59% for
Brazilian Archives of Biology and Technology. Publicado em: 2011-04
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15. Chemical and bromatological characteristics of elephant grass silages containing a mango by-product.
This study was carried out to evaluate the nutritive value of elephant grass (Pennisetum purpureum, Schum.) silages with the addition of 0, 4, 8, 12 and 16% dehydrated mango (Mangifera indica, L.) by-product (DMB), on the fresh matter basis. A randomized complete design with four replications was used. As experimental silos, 210L plastic drums were used. Dry
Revista Brasileira de Zootecnia. Publicado em: 2011
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16. Avaliação de Clones de Pennisetum sp. para a produção de silagem
The experiment was carried out at the experimental Station of Itambé-PE from the Agronomic Institute of Pernambuco, the objective was to evaluate forages and silages of different clones of Pennisetum sp.,cut at 56 days of regrowt. Treatments were five clones of Pennisetum sp. (IPA HV 241, IPA/UFRPE A-146 2.37, IPA/UFRPE A-2.114, Elephant B and Mott), using
Publicado em: 2010
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17. Remoção de nitrogênio de lixiviado de resíduos sólidos urbanos por meio do processo nitrificação/desnitrificação via nitrito em reator em bateladas sequenciais / Nitrogen removal from solid waste leachate by nitrification/denitrification via nitrite in a sequencing batch reactor.
The leachate is an effluent with high potential to cause environmental problems in receiving body due to the high concentrations of ammoniacal nitrogen. Currently, several treatment processes have been studied to promote nitrogen removal by the hand of conventional process variations. Therefore, the present study was developed to evaluate the performance of
Publicado em: 2009
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18. NITROGÊNIO TOTAL EM PECÍOLO DE VIDEIRAS E NITROGÊNIO AMONIACAL, ASSIMILÁVEL E TOTAL EM UVAS E MOSTOS / TOTAL NITROGEN IN GRAPAVINE PETIOLE AND AMMONIACAL, ASSIMILABLE AND TOTAL NITROGEN IN GRAPES AND WINE
The production of grapes depends on the soil where the grape grown where it absorbs water and nutrients necessary for their development. High levels lead to a sharp growth, while in poor soils with low fertility and there is development of short internodes and leaves small. Searching a solution to this problem is proposed this work, with the aim of suggestin
Publicado em: 2008
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19. Investigação da toxicidade, tratabilidade e formação de subprodutos tóxicos em efluentes clorados de lagoas de estabilização com e sem pós-tratamento. / Investigation of toxicity, treatability and toxic disinfection by-products formation in chlorinated stabilization ponds effluents with and without post-treatment.
The main difficulties that the stabilization ponds for sewage treatment systems face to meet the requirements imposed by CONAMA Resolution 357/2005 can highlight the high concentrations of ammonia nitrogen, phosphorus and fecal and total coliform. When the systems use receivers water bodies Class 2 or 3 generate the need for disinfection. Among the different
Publicado em: 2008
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20. Dinâmica do nitrogênio amídico (15N-uréia) ou amoniacal (15N-aquamônia) no solo aplicado conjuntamente com o co-produto da produção do ácido glutâmico (Ajifer) / Dynamics of the nitrogen amidic (15N-Urea) or ammoniacal (15Naquamônia) in the applied soil jointly with the co-product of the production of the glutamic acid (Ajifer)
Com objetivo de estudar o efeito da adubação nitrogenada líquida aplicada sobre a palha em solo cultivado com cana-de-açúcar utilizando o co-produto da fabricação do ácido glutâmico (Ajifer), foi implantado um experimento em tubos de PVC de 100 mm no sistema confinado, simulando área com colheita mecanizada de cana-crua e área com colheita com des
Publicado em: 2008
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21. Avaliação das características microbiológicas e físico-químicas do lixiviado (chorume) no processo de tratamento do Aterro Metropolitano de Gramacho (Rj Brasil) / Evaluation of microbiological and physic-chemical characteristics of leachate in Gramacho landfill treatment process (RJ-Brazil)
Garbage has dramatically increased in XX century, resulting in the expansion of the demand for areas to place it. In Brazil, one of the alternatives for the garbage destination have been the landfills. This option has consequences, as leachate generation. It is a dark liquid that presents highly soluble substances as result of biological degradation process
Publicado em: 2007
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22. Use of microbial reactors contaning immobilized cells on the treatment of the wastewater of a beverage industry. / Utilização de reatores microbianos com celulas imobilizadas no tratamento de efluente de uma industria de bebidas.
The present study the treatment of the waste waters of a beer and soft drink industry by an aerobic biological system was evaluated. The removal of the organic load by means of the quantification of the biochemical oxygen demand (BOD), chemical oxygen demand (COD), total ammoniacal nitrogen, turbidity, sedimented solids (SS), phosphorus (P), conductivity and
Publicado em: 2007
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23. Effects of aeration or water soluble carbohydrates on sugarcane silage / Efeitos da aeração ou do teor de carboidratos solúveis sobre as características da silagem de cana-de-açúcar
This trial aimed at evaluating the effects of aeration time or contents of water-soluble carbohydrate on nutritive value and other fermentative characteristics of sugarcane silage.Two experiments was used in a completely randomized design with three treatments and four repetitions per treatment, the material was ensiled in 12 laboratory silos (6 liter-capaci
Publicado em: 2007
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24. Avaliação do processo de compostagem de resíduos sólidos urbanos
A crescente produção de resíduos sólidos urbanos e a escassez de áreas para uma destinação final tecnicamente adequada, via implantação de aterros sanitários, faz com que tome importância a técnica de tratamento de resíduos sólidos orgânicos através das compostagem/vermicompostagem. Nesta pesquisa, foi realizada a avaliação destes processos
Publicado em: 2007