Sludge Age
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Epidemiological, clinical, and laboratory aspects in a case series of canine hyperadrenocorticism: 115 cases (2010-2014)
RESUMO: A caracterização clínica-epidemiológica de doenças auxilia no direcionamento do diagnóstico. O objetivo deste trabalho foi descrever aspectos epidemiológicos, clínicos e laboratoriais de uma série de casos de hiperadrenocorticismo (HAC) canino. Foram avaliados 115 prontuários de cães diagnosticados pelo teste de supressão por baixa dose d
Pesq. Vet. Bras.. Publicado em: 02/12/2019
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2. Nitrificação e desnitrificação simultânea em reator com biomassa em suspensão e fluxo contínuo de esgoto / Simultaneous nitrification and denitrification in reactor with biomass in suspension and continuous flow of sewage
It was developed in Europe the process known as Simultaneous Nitrification and Denitrification (SND) in activated sludge that operates with a SRT, high enough for nitrification to occur, even with low concentration of dissolved oxygen in the aeration tanks. Such situation in the tanks is possible to maintain anoxic conditions inside the flocs and to have the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2011
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3. Proposta de metodologia para determinação da atividade hidrogênica específica
Hydrogen production by fermentation process is influenced by the concentration and characteristics of organic substrate, the effluent pH value and biomass concentration. The determination of specific hydrogenic activity of organic substrates and biomass can be a tool to analyze the hydrogen volume produced during the fermentation, the volatile fatty acids pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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4. Remoção de carbono e nitrogênio em reator de leito móvel submetido à aeração intermitente / Nitrogen and carbon removal in moving bed reactor operated under intermittent aeration
The operating conditions for the combined removal of nitrogen and organic matter in moving- bed biological reactor were investigated. Two bench-scale reactors, two liters each, were operated under intermittent aeration and continuously fed with synthetic wastewater containing ammonia nitrogen (90 to 110 mg/L) and molasses as organic carbon source (COD of 450
Publicado em: 2008
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5. Uso do lodo de esgoto (biossólido) como fertilizante em eucaliptos: demanda potencial, produção e crescimento das árvores e viabilidade econômica / Use of sewage sludge (biosolids) as a fertilizer in eucalypts forest plantations: potential demand, production and growth of the trees and economic viability
This work evaluates the use of the residual sludge (biosolids) produced by sewage treatment units located in the Metropolitan Region of the City of São Paulo (MRSP) as a fertilizer in Eucalyptus grandis forest plantations. The aspects studied were potential demand, wood production response to the fertilization, trees growth and economic viability. A high le
Publicado em: 2007
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6. Treatment of industry wastewater from a plastic containers (containing originally lubricant oil) recycling industry : biological and physical-chemical process / Tratamento de efluentes de uma industria de reciclagem de embalagens plasticas de oleos lubrificantes : processo biologico e fisico-quimico
In the present work, the treatment of the wastewater originated in a plastic container (containing originally lubricant oil) recycling industry was investigated. The purpose of this work was to study the individual efficiency to treat the industrial effluent, mixture of the plastic container washing process wastewater and sanitary wastewater, by activated sl
Publicado em: 2007
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7. Occurence of Giadia spp. cysts, Cryptosporidium spp. oocysts and Ascarididae family eggs in sewage sludge samples / Ocorrencia de cistos de Giardia spp., oocistos de Cryptosporidium spp. e ovos da familia Ascarididae em amostras de lodo de esgoto
A presença dos protozoários patogênicos Giardia e Cryptosporidium tem sido comumente relatada em amostras de águas superficiais e esgoto que incluem os afluentes, efluentes e resíduos gerados do tratamento, como o lodo de esgoto. Tais parasitos são reconhecidos mundialmente como importantes agentes causadores de diarréia em humanos e animais e destaca
Publicado em: 2007
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8. Diretrizes para a capacitação de mão-de-obra para um sistema de tratamento de esgoto por lodos ativados convencional, focando a relação alimento / microorganismos e idade do lodo como índices de desempenho / The sewerage systems treatment operation has been done in Brazil by low qualified staff, not only due to the lack of specialized workmanship but also for the inexistence, in the majority of cities, of technical courses regarding this area
A operação de sistemas de tratamento de esgoto tem sido feita no Brasil com pessoal de baixa qualificação, não somente pela falta de mão de obra especializada, mas também pela inexistência, na maioria das cidades, de cursos técnicos pertinentes à área. Tomando como base a experiência atual vivida pelos técnicos responsáveis pelas operações de
Publicado em: 2006
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9. Estudo de tratabilidade de efluentes de industria de catalisadores quimicos por lodos ativados por batelada (LAB) : Degussa, Americana, SP / Treatment study of effluents from chemical catalyst industry by activated sludge using sequencing batch reactor: Degussa, Americana, SP, Brrazil
The present work had as main objective the investigation of the utilization potential of activated sludge sequencing batch reactors on the combined treatment of several kinds of wastewaters originated in the chemical catalyst industry Degussa, located in Americana - SP, including the domestic sewage. Workbench reactors were used and two sludge ages were stud
Publicado em: 2005
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10. Tratamento de chorume de aterro sanitario usando eletrolise foto-assistida / Treatment of landfill leachate by photo-assisted electrolysis
Sanitary landfills are the major method used today for the disposal and management of municipal solid waste. Decomposition of waste and rainfall generate leachate at the bottom of landfills, causing groundwater contamination. The leachate is a dark grey, foul smelling solution and it can be considered a complex effluent, often containing organic compounds, h
Publicado em: 2004
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11. Pós-tratamento de efluente de reator UASB em sistema de lodos ativados visando a remoção biológica do nitrogênio associada à remoção físico-química do fósforo. / Association of biological removal of nitrogen and physical-chemical of phosphorus by means of activated sludge post-treatment of UASB reactor effluent.
In this research work a pilot-scale, activated sludge plant was operated to treat the treated effluent of an anaerobic treatment system, in order to remove nitrogen and phosphorus. The pilot unit was composed of anoxic reactor, aerobic reactor and secondary settler. The experiments were carried out while keeping both the affluent and return sludge flow rates
Publicado em: 2003
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12. Use of Chemical Oxygen Demand Values of Bacterial Cells in Waste-Water Purification
Four methods for determining substrate recoveries in studies concerned with the partition of substrate between sludge synthesis and respiration were investigated. An energy balance comparing chemical oxygen demand (COD) removed with the summation of oxygen uptake and the COD of the cells produced yielded average recoveries closer to 100% than any of the othe