Anaerobic Technology
Mostrando 1-12 de 39 artigos, teses e dissertações.
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1. Potential for biogas generation from sweet potato genotypes
Resumo O biogás é uma tecnologia que possibilita a geração de energia através do processo de biodigestão anaeróbia, sendo uma opção a produção a partir de batata-doce como fonte energética. A presente pesquisa teve por objetivo avaliar a produção de biogás em biodigestores anaeróbios de bancada, caracterizar os parâmetros físico-química da
Rev. Ambient. Água. Publicado em: 25/03/2019
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2. Storage of purified biogas (biomethane) at low pressure
ABSTRACT The global use of fossil energy sources has led to the need to develop technologies capable of mitigating its consequences. One such option is anaerobic biodigestion, which is already scientifically well-established, although the use of its main products (biogas and biomethane) still requires further development before they can be employed in automo
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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3. ECONOMIC AND FINANCIAL VIABILITY OF DIGESTER USE IN CATTLE CONFINEMENT FOR BEEF
ABSTRACT This research analyzes the economic and financial feasibility of implementing a biodigester for confinement of beef cattle on a farm located in the State of São Paulo, through the approach of discounted cash flow. The anaerobic digestion technology arouses interest, due to its advantages with the generation of electricity and the pollution reductio
Eng. Agríc.. Publicado em: 2017-04
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4. EVALUATION OF AN INNOVATIVE ANAEROBIC BIOREACTOR WITH FIXED-STRUCTURED BED (ABFSB) FOR BREWERY WASTEWATER TREATMENT
Abstract The aim of this study was to evaluate the application of the anaerobic bioreactor with fixed-structured bed (ABFSB) for brewery wastewater treatment with high volumetric organic loading rate (VOLR) and its comparison with a traditional packed-fixed bed bioreactor. Two different biomass support materials were tested, including polyurethane (PU) and p
Braz. J. Chem. Eng.. Publicado em: 2016-12
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5. STRIPPING AND DISSIPATION TECHNIQUES FOR THE REMOVAL OF DISSOLVED GASES FROM ANAEROBIC EFFLUENTS
Abstract UASB reactors are a common technology for wastewater treatment. However, certain disadvantages must be considered. One of the disadvantages relates to the presence of dissolved gases, hydrogen sulfide and methane, in the effluent, which can potentially be released into the atmosphere. This can cause malodours and contribute to the greenhouse effect.
Braz. J. Chem. Eng.. Publicado em: 2016-12
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6. Recovery of ammonia from anaerobically digested manure using gas-permeable membranes
ABSTRACT Nitrogen (N) can be recovered from different types of wastewaters. Among these wastewaters, anaerobically digested swine manure (digestate) has the highest N content in ammonia form (NH3). It is desirable to reduce N in digestate effluents to safely incorporate them in arable soil in N vulnerable zones (NVZ) and to mitigate NH3 emissions during N la
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-10
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7. Swine manure digestate treatment using electrocoagulation
ABSTRACT Anaerobic biodigestion is an appropriate alternative for the treatment of swine wastewater due to its biogas generation properties and the possibility of its application as a source of energy for heating or electricity. However, digestate can still contain high levels of turbidity, organic carbon and nutrients and must be correctly managed as a biof
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-10
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8. Remoção de matéria orgânica de águas residuárias com elevada concentração de sulfato pelas vias sulfetogênica e metanogênica combinadas / Organic matter removal from wastewater with high sulphate concentration by sulphidogenic and methanogenic combined pathways
A utilização da tecnologia anaeróbia para tratamento de águas residuárias contendo sulfato foi considerada inadequada até o final da década de 1980, principalmente pela geração de odor desagradável, potencial corrosivo e pela instabilidade causada aos organismos envolvidos no processo de degradação de matéria orgânica. Entretanto, a remoção s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012
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9. Transferência de metano no sentido gás-líquido com vistas ao atendimento da demanda carbonácea da desnitrificação de esgoto sanitário
This work presents a simulation of a hybrid system for waste water treatment, in order to explain the possible use of a carbon supply on denitrification from the methane produced in an anaerobic reactor and transferred to the liquid mass of a reactor that would be removing nitrogen. It was used the biogas produced in a UASB reactor, that passed through a sto
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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10. Characterization and treatment of sludge originated from septic tanks / Caracterização e pré-tratamento de lodo de fossas e de tanques sépticos
Septic tanks are small structures used for partial treatment of wastewater produced from urban and rural areas. It utilization is justify mainly by simplicity of construction and for being a technology that requires low operational dedication. Although it is a technology vastly used in Brazil, there is not much information about the characteristics of the wa
Publicado em: 2009
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11. Reasons for the non-use of the biodigestors in swine farms in Marechal Candido Rondon, PR / RazÃes pela nÃo utilizaÃÃo de biodigestores em granjas suinÃcolas em Marechal CÃndido Rondon â PR
The actual economic model takes the society to exploit the natural resources in an inadequate way, besides generating anthrop systems which are not always in concordance with nature. The swine culture is one of these systems, which needs some policies and actions in order to give the activity some sustainability. This research aimed at identifying the reason
Publicado em: 2009
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12. MONOENERGETIC AND POLYENERGETIC GAMMA RAY COMPUTER TOMOGRAPHY FOR MULTIPHASE SYSTEMS ANALYSIS / Análise de sistemas multifásicos utilizando tomografia computadorizada Gama monoenergética e polienergética
It is important to recognize that at the heart of chemical transformations in all process and energy industries is multiphase reator technology, as over 99% of reator systems require the presence of more than one phase for proper operation. Tomography is a powerful technique capable of determining the effect of operating and design parameters on the phase ho
Publicado em: 2009