Biological Treatment Of Gases
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Tratamento de compostos orgânicos odoríferos tóxicos por biorreatores / Treatment of odorous toxic organic compounds by bioreactor
Introdução É importante o desenvolvimento de sistemas de controle de poluição do ar que sejam eficientes, além de aplicáveis à condição nacional e pra proteção da saúde humana, uma vez que os compostos do grupo BTEX são tóxicos. Objetivo - Avaliar o desempenho de sistema de tratamento biológico para vapores de BTEX e investigar as melhores co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/11/2011
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2. Comunidade bacteriana, atributos do solo e fluxo de gases em solo sob Cerrado e cana-de-açúcar / Bacterial community, soil properties and gas fluxes in a soil under Cerrado and sugarcane
The sugarcane crop plays an important role on Brazilian economy, and is passing through an expansion process concentrated mainly on the Cerrado (savannah) biome (Middle West region of Brazil). In order to understand the influence of sugarcane cultivation and management on soil chemical, physical and biological properties, we studied two sugarcane areas, with
Publicado em: 2010
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3. Quantification of N2O emissions from fertilizer, N2 fixation and crop residues in an Udult soil. / Quantificação das emissões de N2O resultantes de fertilizante, fixação de N2 e resíduos de colheita em Argissolo Vermelho-Amarelo.
Nitrous oxide (N2O) is one of the gases responsible for the greenhouse effect, and soils are the main source of this gas to the atmosphere. The N availability in the soil is the main factor influencing their emissions. Thus, cropping systems that use nitrogen fertilizers, along with the decomposition of harvesting residues can enhance N2O emissions, exacerba
Publicado em: 2009
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4. Lixiviado de aterros sanitários brasileiros: estudo de remoção do nitrogênio amoniacal por processo de arraste com ar ("stripping") / Sanitary landfill leachate in Brazil: evaluation of ammonia nitrogen removal by air stripping process
Sanitary landfills are considered as the most appropriate way for final disposal of municipal solid wastes in Brazil, in the technical and economical point of view. Open dumps have been progressively substituted by well engineered and operated landfills. However, landfills still present environmental risks due to the gas emission and leachate production. Gas
Publicado em: 2009
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5. Biofilter efficiencies in the purification and deodorization of hydrogen sulfide emissions / Desempenho de filtro biológico na depuração e desodorização de emissões de sulfeto de hidrogênio
Traditionally the industrial waste gases have been treated by physical-chemical processes, such as scrubbers, absorption, condensation and oxidation. Although these techniques presented great efficiency, the need to add chemical products and the replacement of adsorbent results in relatively high operational costs compared to biological treatment techniques.
Publicado em: 2007
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6. Aplication of HACCP methodology - hazard analysis and critical control point - as a water reuse tool in the industry: model to the aromatic and fragrancy industry. / Aplicação da metodologia de APPCC - análise de perigos e pontos críticos de controle - como ferramenta para reúso de água na indústria: modelo para indústria de aromas e essências.
One of the major problems faced by the food industry is their enormous water consumption is their productive processes. Water conservation and reuse is a real and increasing necessity. This dissertation discusses rational use concepts, industrial water reuse, quality management systems in the condiment sector of the food industry. The main objective of this
Publicado em: 2007
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7. Concepção e estudo de um biofiltro para tratamento de compostos orgânicos voláteis COVs
In the last decade, biological purification of gaseous waste has become an important alternative to many conventional methods of exhaust air treatment. More recently, biofiltration has proved to be an effective and inexpensive method for the treatment of air contaminated with volatile organic compounds (VOCs). A biofilter consists in a reactor packed with a
Publicado em: 2005