Anthracite
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. FAST DETERMINATION OF THE SULFUR SPECIES IN SOLID PHASE SYSTEMS BY A TPO-IR METHOD
Qualitative and quantitative assessment of total sulfur and sulfur species in solid phase is necessarily important for development of effective desulfurization methods, reduction of environmental pollution, and prevention of catalyst poisoned. In this work, TPO-IR (Temperature Programmed Oxidation- Infrared) method was used for rapid determination of sulfur
Quím. Nova. Publicado em: 2021-01
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2. Removal of helminth eggs in sewage side, through rapid sand filters, anthracite coal and zeolite for agricultural reuse and urban non-potable. / Remoção de ovos de helmintos de esgotos secundários, por meio de filtros rápidos de areia, carvão antracitoso e zeólito para reúso agrícola e urbano não potável.
Helminth eggs are one of the major problems regarding the reuse of treated sewage in agriculture and non-potable urban irrigation since both workers who handle the effluent and the consumer population might become contaminated. Helminth eggs are not efficiently removed by conventional unit operations and processes, which do not allow the removal of helminth
Publicado em: 2010
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3. Partially aerated attached biomass bed reactor applied to treatment sanitary sewage treatment / Reator com leito de biomassa aderida aerado parcialmente aplicado ao tratamento de esgoto sanitário
This work aimed to evaluate the performance of a full scale up-flow attached biomass bed reactor (159 M POT.3) and with continuous aeration at 7 m above bottom of the reactor to sanitary sewage treatment. The bed of the reactor was constituted for activated granular carbon, anthracite carbon and sand. The work was divided into two stages. In the first stage,
Publicado em: 2010
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4. Avaliação do tipo de material filtrante no comportamento hidráulico de filtros rápidos de camada profunda no tratamento de águas de abastecimento. / Evaluation of filter media in the hydraulic behaviour of rapid gravity depth bed filters used in drinking water treatment.
This project researched the filtration stage in the water treatment process for public use. The research used a pilot filtration system based on four rapid gravity depth bed filters, with a filtration rate of 500m3/m2/dia. The water used in the experiment came from sedimentation tank of the Rio Grande water treatment facility. During the experimental phase t
Publicado em: 2009
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5. Comportamento de filtros rápidos de camada profunda no tratamento de águas de abastecimento mediante o emprego de polímeros como auxiliares de filtração. / Behavior of deep bed rapid filters treating public water supplies through the use of polymers as filter aids.
The project was to evaluate the use of anionic and cationic polymers of different molecular weights as filter aids to treat drinking water treatment of surface water sources with high degree of eutrophication, particularly with regard to particulate matter removal optimization and head loss rate minimization. The experimental apparatus was composed of four p
Publicado em: 2009
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6. Tratamento de esgoto sanitário em um reator de leito expandido em escala plena, operado com regiões anaeróbia e aeróbia sobrepostas / Treatment of sanitary wastewater in a full scale expanded bed reactor, operated with overlap anaerobic and aerobic regions
This present research had as main objective the evaluation of the performance of a full scale expanded bed reactor (159.0 M POT.3), operated under anaerobic and overlapping anaerobic-aerobic, treating sanitary wastewater. As specific objectives, it was evaluated using commercial sand to complement the bed of particles and distribution of material support alo
Publicado em: 2009
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7. Reator de leito expandido em escala plena com zonas anaeróbia e aeróbia sobrepostas: remoção conjunta de matéria orgânica e nutrientes e estudo do comportamento microbiológico do biofilme, por respirometria e microsensor de OD / Full scale expanded bed reactor with overlaid anaerobic and aerobic zones: joint removal of organic matter and nutrients and the study of microbiological biofilm behavior and DO microsensor
The current research aimed the development of a 159 M POT.3total volume biological reactor, with a expanded and partially aerated granular coal bed (activated and anthracite), to promote organic matter and nutrients (N and P) removal from wastewater due to the maintenance of anaerobic and aerobic environments, stratified throughout the height of the reactor
Publicado em: 2007
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8. Bacteria in Anthracite Coal
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9. The Action of Anthracite and Bituminous Coal Dusts Mixed with Quartz on the Lungs of Rats
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10. Infective Pneumoconiosis: 1. The Influence of Dead Tubercle Bacilli (B.C.G.) on the Dust Lesions Produced by Anthracite, Coal-mine Dust, and Kaolin in the Lungs of Rats and Guinea-pigs
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11. Pneumoconiosis in Carbon Electrode Makers
In the absence of adequate preventive measures the manufacture of carbon electrodes is attended by a considerable dust hazard. The present paper is based on a study of the clinical, radiological, and pathological changes resulting from inhalation of this dust, which is derived from crushed coke and anthracite.
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12. Survival of Rhizobium phaseoli in Coal-Based Legume Inoculants †
The long-term survival of Rhizobium phaseoli strains 127K17, 127K26, and 127K35 in legume inoculants prepared with eight different coals (one strain and one coal per inoculant) was studied. The coals used were Pennsylvania anthracite, bituminous coals from Illinois, Pennsylvania, and Utah, lignite from North Dakota and Texas, and subbituminous coals from New