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| Registros recuperados: 15 | |
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| Campos,Alessandro T.; Veloso,Alessandro V.; Silva,Enilson B.; Yanagi Júnior,Tadayuki; Mattioli,Matheus C.. |
| The goal of this study was to evaluate the nitrogen fertilization as deep litter for pigs in order to produce biomass and accumulate nutrients by the corn. A deep litter made of rice husk as organic compound, from a commercial pig farm during finishing phase, was used. After three consecutive batches of pigs, the deep litter was subjected to a maturation period of 50 days, and samples of this material were taken for analysis of agronomic value. The experimental design was completely randomized with five replicates. The treatments consisted of doses of 0, 75, 150 and 300mg dm-3 of N of deep litter, as well as an additional treatment with ammonium sulfate, with a dosage of 150mg dm-3 of N. After 45 days, corn plants were harvested in order to evaluate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pig farming; Pig facilities; Alternative management; Waste treatment; Organic fertilizer; Zea mays. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600018 |
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| Hermes,Eliane; Rocha,Dayane C. da; Orssatto,Fábio; Lucas,Juliana F.R.; Gomes,Simone D.; Sene,Luciane. |
| The aim of this study was to isolate microorganisms that produce lipase and to assess the efficiency of COD removal intreatment of cheese whey under different operating conditions. The microorganisms were isolated from cheese whey and a commercial product; it was selectedthreemicroorganisms that obtained the best response to the lipolytic activity test through the enzyme index. Then, the microorganisms were inoculated in sterilized cheese whey samples, for two pH values (6.2 and 7.0), incubated at 35 °C and 150 rpm in shaker and the lipolityc activity and the efficiency of COD removal were measured in two time periods (24 and 48h). After incubation, it was observed that the treatments showed a good removal efficiency of COD for the pre-treatment and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waste treatment; Dairy industry; Lipases. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200016 |
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| MANZATTO, C. V.; ARAUJO, L. S. de; ASSAD, E. D.; SAMPAIO, F. G.; SOTTA, E. D.; VICENTE, L. E.; PEREIRA, S. E. M.; LOEBMANN, D. G. dos S. W.; VICENTE, A. K.. |
| A publicação apresenta um primeiro estudo efetuado sobre as tecnologias preconizadas pela Plataforma ABC (TECabc) e que teve como objetivos discutir e analisar a lógica produtiva de tais tecnologias e realizar uma estimativa inicial da contribuição do Plano ABC para a mitigação das emissões dos gases de efeito estufa, ressaltando-se as variações e incertezas dos dados disponíveis sobre a adoção das TECabc, a diversidade de sistemas de produção e manejo do solo e a ausência de coeficientes de emissõ es regionalizados. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Recuperação de pastagem; Fixação biológica de nitrogênio; Gases de efeito estufa; Mitigação; Agricultura Sustentável; Efeito Estufa; Mudança Climática; Agrossilvicultura; Fixação Simbiótica de Nitrogênio; Florestamento; Política Ambiental; Plantio Direto; Greenhouse gas emissions; Sustainable agricultural intensification; Integrated agricultural systems; Nitrogen fixation; Waste treatment; Animal wastes; Environmental policy. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123612 |
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| CORREA, J. C.; GROHSKOPF, M. A.; NICOLOSO, R. da S.; HIGARASHI, M. M.; OLIVEIRA, P. A. V. de. |
| Na criação tecnificada de suínos, muita preocupação tem sido atribuída ao destino final dos resíduos gerados por este sistema, principalmente na geração de fertilizantes orgânicos e sua aplicação no ambiente. No ano de 2010, foram abatidos, aproximadamente, 36,8 milhões de cabeças e espera-se que até o ano de 2020 este número aumente, com incremento na produção de 24% (MAPA, 2010). Assim, a demanda para o aproveitamento dos resíduos gerados na criação de suínos será cada vez maior, fazendo com que a pesquisa necessite desenvolver recursos tecnológicos que equalizem a relação produção/qualidade ambiental. |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Manejo de dejetos.; Manejo do solo; Fertilizante; Adubo; Tecnologia agrícola; Meio ambiente; Compostagem; Suinocultura.; Soil management; Fertilizer application; Application technology; Fertilizers; Environment; Waste treatment; Animal wastes; Swine; Composting. |
| Ano: 2015 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1031918 |
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| Sonoda,LT; Moura,DJ; Bueno,LGF; Cordeiro,DC; Mendes,AS. |
| Broiler litter reutilization consists in using the same bedding material to cover the house floor for several broiler flocks. This requires the litter to be treated in order to reduce the amount of microorganisms, according to international recommendations. The aim of this study was to evaluate two methods of broiler litter fermentation based on composting concepts and their effect on litter and the air quality during fermentation in small-scale broiler houses. The experiment was carried out in the Environmental Laboratory I of the School of Agricultural Engineering of the State University of Campinas, utilizing six small-scale houses. Litter from the same grow-out (one, two or three) was distributed in two experimental houses, where it was either piled or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation; Nitrogen; Waste treatment; Broiler. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300011 |
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| Silva,Andréa Scaramal da; Jacques,Rodrigo Josemar Seminoti; Andreazza,Robson; Bento,Fátima Menezes; Camargo,Flávio Anastácio de Oliveira. |
| Phenanthracene is a highly toxic organic compound capable of contaminating water and soils, and biodegradation is an important tool for remediating polluted environments. This study aimed to evaluate the effects of trace elements, cations, and environmental conditions on the activity of the protocatechol 3,4-dioxygenase (P3,4O) enzyme produced by the isolate Leifsonia sp. in cell-free and immobilized extracts. The isolate was grown in Luria Bertani broth medium (LB) amended with 250 mg L-1 of phenanthrene. Various levels of pH (4.0-9.0), temperature (5-80 °C), time (0-90 min), trace elements (Cu2+, Hg2+ and Fe3+), and cations (Mg2+, Mn2+, K+ and NH4+) were tested to determine which conditions optimized enzyme activity. In general, the immobilized extract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzyme activity; Enzyme immobilization; Biodegradation; Waste treatment. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000200002 |
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| Silva,A.S.; Jacques,R.J.S.; Andreazza,R.; Bento,F.M.; Roesch,L.F.W.; Camargo,F.A.O.. |
| Polycyclic aromatic hydrocarbons (PAH) are carcinogenic compounds which contaminate water and soil, and the enzymes can be used for bioremediation of these environments. This study aimed to evaluate some environmental conditions that affect the production and activity of the catechol 1,2-dioxygenase (C12O) by Mycobacterium fortuitum in the cell free and immobilized extract in sodium alginate. The bacterium was grown in mineral medium and LB broth containing 250 mg L-1 of anthracene (PAH). The optimum conditions of pH (4.0-9.0), temperature (5-70 ºC), reaction time (10-90 min) and the effect of ions in the enzyme activity were determined. The Mycobacterium cultivated in LB shown higher growth and the C12O activity was two-fold higher to that in the mineral... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthracene; Enzyme activity; Enzyme immobilization; Biodegradation; Waste treatment. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100043 |
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| Registros recuperados: 15 | |
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