Sludge Class A
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Biosolids: production, effects on eucalyptus seedlings growth, and assessment of human health risks / Biossólidos: produção, efeitos no crescimento de mudas de eucalipto e avaliação de risco à saúde humana
This work involved the production of biosolids by means of lime treatment and green house drying of UASB reactor sludge, the use of these biosolids to produce Eucalyptus urophylla seedlings, and an approach of microbiological risk assessment to estimate human health risks (occupational risks) associated with the production of the seedlings. In trials conduct
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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2. Uso de estufa agrícola para secagem e higienização de lodo de esgoto. / Use of greenhouse to dry and hygienization of the sewage sludge.
This research aimed at assessing the dry and hygienization in a greenhouse excess of the activated sludge generated in Wastewater Treatment Plants that treats domestic sewage, located in the Metropolitan Region of the Great Vitória, Espírito Santo, and from the results, estimate the area and the cost of investment required for installation from the greenho
Publicado em: 2010
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3. GestÃo e caracterizaÃÃo dos resÃduos sÃlidos da Lubnor/PETROBRAS: estudo de caso / Management and characterization os solid waste Lubnor/PETROBRAS: a case study
The situation of solid waste in Brazil is worrying, especially with regard to final disposal, as the increase in the wasteâs generation was not followed by a growth of infrastructure. The environmental issue, with the onset and worsening of environmental problems become more important to humans. Most of these problems is due to industrial waste origin, as m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2009
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4. Sewage sludge application in cane-plant as nitrogen and phosphorus source and its environmental effects / Aplicação de lodo de esgoto em cana-planta como fonte de nitrogênio e fósforo e seu impacto ambiental
The potential agricultural use of the sewage sludge is due to their organic matter and nutrients contents, mainly nitrogen and phosphorus, the most important constituint. However, there is a lack of research to adequate the nitrogen and phosphate fertilizer doses to be applied in agricultural fields treated with this residue. Despite the evident benefits of
Publicado em: 2009
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5. Caracterização do conteúdo de fossas e tanques sépticos na cidade de Natal
Only 32% of the population of Natal is attended by sewage, while the remaining population use pits and septic tanks. The characterization of the contents of septic tanks and pits contributes to the performance of such system and may guide the decision on treatment of these contents. The main of this research is to characterize the contents of interior reside
Publicado em: 2009
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6. Desempenho mecÃnico do solo condicionado com lodo de esgoto calcinado / Mechanical performance of the soil conditioned with burned sewage sludge
Amongst the global problems that most rouse studies and solutions before the environment crisis arise the ones concerning the destination of waste and the sewage system. The sustainable development requires the creation of solutions aiming the reduction or the elimination of the impacts on the environment. The waste may become an Engineering solution. The ai
Publicado em: 2008
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7. Assessment of environmental liabilities in company of supply of drinking water: a case study on the use of the mass balance / Avaliação do passivo ambiental em compahia de abastecimento de água potável: um estudo de caso a partir da utilização de balanço de massa
This paper aims lo evaluate, with the use of the mass balance of the environmental liabilities generated by a company which has focused its activities to the treatment and distribution of drinking water, located in the Center-West region of the State of Santa Catarina, as well as establish the cost of recovery of this mass polluting. The methodology of appli
Publicado em: 2007
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8. Atendimento de aspectos legais de um sistema de tratamento de esgoto doméstico quanto ao lançamento do efluente tratado em curso dágua, Classe 2 / Legal compliance for a domestic sewage treatment pant discharging treated efluent in a class 2 receiving stream
Neste estudo foi abordada a legislação ambiental para aprovação de loteamentos no Estado de São Paulo. Foram verificadas também, a sistemática de ocupação dos loteamentos, a medição do consumo real de água por habitante e a taxa de retorno de água, para quantificar a vazão real do esgoto a ser tratado. Analisou-se uma estação de tratamento de
Publicado em: 2005
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9. Análise da resposta antioxidativa de células de Nicotiana tabacum cv BY-2 submetidas ao cádmio. / Antioxidant response of by-2 Nicotiana tabacum cells to cadmium stress.
The contamination of environments by heavy metal pollution, mainly by cádmium (Cd), considered one of the more toxic, is generated by mining and industrial activities, and sewage sludge and phosphated fertilizers used in agriculture. The latter contains Cd in its composition and with continuous agricultural utilization an increase in the heavy metals levels
Publicado em: 2004
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10. Identification of Some of the Major Groups of Bacteria in Efficient and Nonefficient Biological Phosphorus Removal Activated Sludge Systems
To investigate the bacteria that are important to phosphorus (P) removal in activated sludge, microbial populations were analyzed during the operation of a laboratory-scale reactor with various P removal performances. The bacterial population structure, analyzed by fluorescence in situ hybridization (FISH) with oligonucleotides probes complementary to region
American Society for Microbiology.
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11. Quinone Profiling of Bacterial Communities in Natural and Synthetic Sewage Activated Sludge for Enhanced Phosphate Removal
Respiratory quinones were used as biomarkers to study bacterial community structures in activated sludge reactors used for enhanced biological phosphate removal (EBPR). We compared the quinone profiles of EBPR sludges and standard sludges, of natural sewage and synthetic sewage, and of plant scale and laboratory scale systems. Ubiquinone (Q) and menaquinone
American Society for Microbiology.
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12. Development of an rRNA-targeted oligonucleotide probe specific for the genus Acinetobacter and its application for in situ monitoring in activated sludge.
Enhanced biological phosphate removal in an anaerobic-aerobic activated sludge system has generally been ascribed to members of the genus Acinetobacter. A genus-specific 16S rRNA-targeted oligonucleotide probe was developed to investigate the role of Acinetobacter spp. in situ. Nonisotopic dot blot hybridization to 66 reference strains, including the seven d