Potassium Permanganate Oxidation
Mostrando 1-12 de 12 artigos, teses e dissertações.
-
1. Avaliação do processo oxidativo avançado por permanganato de potássio no tratamento de solos contaminados com idrocarbonetos poliaromáticos / Evaluation advanced oxidation Process by permanganate potassium in the Treatment of contaminated Soils with Polyaromatic Hydrocarbons
A contaminação de solo com petróleo é uma das grandes preocupações das indústrias que atuam no ramo e também dos órgãos ambientais. O petróleo é constituído basicamente por hidrocarbonetos alcanos e aromáticos. Os exemplos mais comuns dos hidrocarbonetos poliaromáticos são: naftaleno, antraceno, fenantreno, benzopireno e seus vários isômero
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2010
-
2. 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
-
3. Removal of microcystins in water from eutrophic reservoir involving technical of clarification, pre-oxidation with potassium permanangate, adsorption with powdered activated carbon and post-chlorination / Remoção de microcistina em águas provenientes de reservatório eutrofizado associando técnicas de clarificação, pré-oxidação com permanganato de potássio, adsorção em carvão ativado e pós-cloração
The present work had as objective to evaluate the removal of three different concentrations of extracellular microcystins in different combinations of water treatment for supplying, in bench scale, that had as basic sequence the clarification associated or not with the processes of pre-oxidation with KMNO IND.4, adsorption on PAC and post-chlorination. The r
Publicado em: 2009
-
4. Estudo da remoção de microcistina-LR utilizando oxidação com cloro, dioxido de cloro e permanganato de potassio / Study of removal of microcystin-LR using chlorine, chlorine dioxide and potassium permanganate
This work consisted in evaluate the capacity of removal of Microcystin-Lr toxin using oxidation with chlorine, chlorine dioxide and potassium permanganate. The tests were did using bench -scale tests in jar test equipment to simulated water treatment process of 3 and 4 WTP of SANASA Campinas. Study were did using 2.5, 5.0 and 10 µg/L Mc-Lr concentration whe
Publicado em: 2008
-
5. Removal of phytoplankton and microcystin from source water, by assotiation of dissolved air flotation and chemical oxidation with potassium permanganate and chlorine / Remoção de fitoplancton e microcistina de águas de abastecimento, pela associação das técnicas de flotação por ar dissolvido e oxidação química com cloro e permanganato de potássio
O presente trabalho de pesquisa teve como objetivo principal avaliar a remoção de fitoplancton e microcistina em cinco fluxogramas de tratamento de água para abastecimento, que tiveram como seqüência básica as etapas de coagulação, floculação, flotação por ar dissolvido e filtração, complementados com oxidação química em diferentes pontos da
Publicado em: 2008
-
6. RemoÃÃo de Sulfeto em uma estaÃÃo de tratamento de efluentes de nÃquel por oxidaÃÃo Ãmida
The waste treatment of electronics components industry that use nickel in your electrochemistry process consist in aplication phisical-chemical metods as precipitation and filtration. This industry of northeast region remove nickel by add sulphide in excess with total precipitation of metal. The oxidation process adoptee by industry for removing this sulphid
Publicado em: 2006
-
7. Formação e remoção de trihalometanos em aguas de abastecimento utilizando permanganato de potassio e carvão ativado em po / Trihalomethane formation and remotion in drinking water using potassium permanganate and powdered activated carbon
The present research had for objective to analyze the formation of THM through the use of potassium permanganate, isolated or associate with free chlorine, in the process of pre-oxidation, and, in a second stage, to evaluate the removal efficiency of these by-products through the adsorption in powdered activated carbon followed by conventional treatment. The
Publicado em: 2005
-
8. Estabilidade da matéria orgânica à oxidação com permanganato de potássio em solos do sul do rio grande do sul1. / Soil organic matter stability to potassium permanganate oxidation of soils from Southern Rio Grande do Sul
O presente trabalho objetivou caracterizar a MO de horizontes A e B de solos pertencentes às principais unidades de mapeamento da região Sul do RS quanto à susceptibilidade a perdas. Amostraram-se diferentes camadas do perfil de oito solos (0-2,5; 2,5-7,5; 7,5-17,5 e 10 cm do topo do horizonte B) sob campo nativo e flora de sucessão secundária. Os teore
Publicado em: 2005
-
9. The use of permanganate as a sequencing reagent for identification of 5-methylcytosine residues in DNA.
The use of permanganate as a reagent for DNA sequencing by chemical degradation has been studied with respect to its specificity for 5-methylcytosine residues. At weakly acidic pH and room temperature, 0.2 mM potassium permanganate reacts preferentially with thymine, 5-methylcytosine, and to a lesser extent with purine residues, while cytosine remains essent
-
10. 6-(γ,γ-Dimethylallylamino)Purine As A Precursor of Zeatin 1
A 6-(γ,γ-dimethylallylamino) purine-like compound was found in the culture medium of Rhizopogon roseolus, which had been shown earlier to synthesize zeatin. The role of 6-(γ,γ-dimethylallylamino) purine as a precursor of zeatin was studied. Rhizopogon was furnished with 6-(γ,γ-dimethylallylamino) purine-8-14C. Cochromatography, oxidation studies with p
-
11. Molybdopterin cofactor from Methanobacterium formicicum formate dehydrogenase.
The molybdopterin cofactor from the formate dehydrogenase of Methanobacterium formicicum was studied. The cofactor was released by guanidine denaturation of homogeneous enzyme, which also released greater than 80% of the molybdenum present in the enzyme. The anoxically isolated cofactor was nonfluorescent, but after exposure to air it fluoresced with spectra
-
12. A DNA glycosylase from Escherichia coli that releases free urea from a polydeoxyribonucleotide containing fragments of base residues.
A poly (dA, [2-14C]dT) copolymer has been synthesized using terminal deoxynucleotidyltransferase. Treatment of the polydeoxyribonucleotide with potassium permanganate converts the thymine residues to urea and N-substituted urea derivatives, while the adenine residues are resistant to oxidation. This damaged polymer has been annealed with an equimolar amount