Ferric Sulfate
Mostrando 1-12 de 72 artigos, teses e dissertações.
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1. Initial inflammatory response after the pulpotomy of rat molars with MTA or ferric sulfate
Abstract Purpose To compare, both qualitatively and quantitatively, the inflammatory cells, vascular density and IL-6 immunolabeled cells present in the pulp after pulpotomy with white MTA versus 15.5% ferric sulfate (FS). Methodology Forty-eight mandibular first molars from 24 Wistar rats were divided into MTA or FS groups and subdivided according to th
J. Appl. Oral Sci.. Publicado em: 29/07/2019
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2. Clinical, Radiographic and Histological Evaluation of Primary Teeth Pulpotomy Using MTA And Ferric Sulfate
Resumo O objetivo deste estudo foi avaliar os resultados clínicos, radiográficos e histológicos do complexo dentino-pulpar de molares decíduos após pulpotomia com agregado trióxido mineral (MTA) e sulfato férrico (SF) 15,5%. Trinta e um molares decíduos foram alocados aleatoriamente nos grupos MTA ou SF. As avaliações clínicas e radiográficas for
Braz. Dent. J.. Publicado em: 2018-03
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3. Effects of sulfur-based hemostatic agents and gingival retraction cords handled with latex gloves on the polymerization of polyvinyl siloxane impression materials
OBJECTIVES: This study investigated the possible interactions between three addition silicone materials (Express®, Aquasil Ultra® and Adsil®), three hemostatic agents (ferric sulfate, StatGel FS®; aluminum sulfate, GelCord®; and aluminum chloride, Hemostop®) and gingival retraction cords previously handled with latex gloves to determine whether direct
Journal of Applied Oral Science. Publicado em: 2011-12
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4. Lamella sedimentation: alternative for treatment of overflow sewage - study in ETE Martim de Sá (Caraguatatuba/SP). / Decantação acelerada: alternativa para o tratamento de vazão excedente de esgoto - estudo na ETE Martim de Sá (Caraguatatuba/SP).
This study was motivated by the need to treat high wastewater influent exceeding in sewage treatment plants, which occurs on days of heavy rain. The central hypothesis of this study is that the physical-chemical process to treat dilute sewage overflow, it can be advantageous with respect to increased capacity and expansion of biological systems. The research
Publicado em: 2010
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5. Recuperação hidrometalúrgica de metais da drenagem ácida de minas por precipitação seletiva
Acid mine drainage (AMD) is an important water pollution problem in coal production. The active treatment of AMD involves the addition of alkaline reagents to increase the pH and precipitate the dissolved metals as hydroxides. Although active treatment can provide effective remediation, it has the disadvantages of high operational costs and problems related
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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6. Produção de coagulantes férricos na mineração de carvão
A mineração de carvão gera milhões de toneladas de rejeitos, contendo pirita (FeS2). A oxidação da pirita, na presença de ar e água, dá origem a um importante problema ambiental comum em regiões de mineração de carvão, a geração de drenagem ácida de mina (DAM). A oxidação da pirita em presença de água promove a formação de H2SO4 (ácido
Publicado em: 2010
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7. Remoção de sulfeto de hidrogênio, ferro e manganês de águas de abastecimento através dos processos de dessorção gasosa, nanofiltração e oxidação com permanganato de potássio
Many regions in Brazil have problems associated with the water quality of their supplies, which bring problems to the production of safe drinking water that is distributed in communities. Generally, consumers judge the drinking water safety through the use of their organoleptic senses. The conventional processes used in water treatment are not effective to r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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8. Fotocatálise heterogênea com TiO2 para oxidação de arsênio e sua remoção de águas por coprecipitação com sulfato férrico
The oxidation of arsenic (As(III) to As(V)) in water samples was performed by heterogeneous photocatalysis using a TiO2 film immobilized inside a photochemical reactor. After oxidation, As(V) was removed from the water samples by coprecipitation with ferric sulfate. The final conditions of oxidation and arsenic removal (TiO2 film prepared with a suspension:
Química Nova. Publicado em: 2009
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9. AVALIAÇÃO DA INFLUÊNCIA DOS COAGULANTES SULFATO DE ALUMÍNIO E CLORETO FÉRRICO NA REMOÇÃO DE TURBIDEZ E COR DA ÁGUA BRUTA E SUA RELAÇÃO COM SÓLIDOS NA GERAÇÃO DE LODO EM ESTAÇÕES DE TRATAMENTO DE ÁGUA
One of the biggest environmental problems faced nowadays by the Water Treatment Stations is the disposal of waste generated in the treatment process steps. The main one, the sludge retained in decanters, has been a reason of qualitative and quantitative characterizing studies, in order to find a suitable solution for your treatment and final destination. The
Publicado em: 2009
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10. Influence of apparent molecular size from aquatic humic substances in the coagulation efficiency with aluminium sulfate and ferric chloride / Influência do tamanho molecular aparente das substâncias húmicas aquáticas na eficiência da coagulação com sulfato de alumínio e cloreto férrico
Water sources used to supply the public water system frequently have a relatively high true color intensity due to dissolved aquatic humic substances (AHS). In this study, water samples were collected from the Itapanhaú River (Bertioga, SP, Brazil), which exhibited a true color intensity in the order of 300 Hanzen units. XAD-8 resin was used to extract AHS.
Publicado em: 2007
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11. Microcystis aeruginosa and microcystins removal by dissolved air flotation bench scale study using aluminum sulfate and ferric chloride as coagulants. / Remoção de Microcystis aeruginosa e microsistinas por flotação por ar dissolvido : estudo em escala de bancada utilizando sulfato de alumínio e cloreto férrico como coagulantes
A ocorrência de florações de cianobactérias é preocupante e tem se tornado mais freqüente em mananciais de abastecimento brasileiros. Espécies de cianobactérias tóxicas podem liberar toxinas para a água, oferecendo risco potencial para o homem e animais que tenham contato ou consumam essa água, podendo até levar à morte. Existem alguns estudos q
Publicado em: 2006
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12. Produção de lipases e sua aplicação na eliminação de resinas em lignocelulosicos
Lipases produced from Penicillium citrinum in the Yeast Extract Medium MEL and Ammonium Sulfate Medium MSA have mantained an optimum temperature of 30 °C and pH between 8,0 - 8,5. Their pH s were around 2,2 - 3,0 (MSA medium), and 6,5 - 7,8 (MEL medium) in the maximum production of extracellular lipolytic activity. It was observed that, mantaining the lipas
Publicado em: 1997