Uberlândia, Minas Gerais, Brasil
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Experience developing native mobile apps for use on multiple platforms like Android and…

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Publicaciones

  • Degradation of caffeine by photo-Fenton process: Optimization of treatment conditions using experimental design

    Elsevier

    The degradation of caffeine in different kind of effluents, via photo-Fenton process, was investigated in lab-scale and in a solar pilot plant. The treatment conditions (caffeine, Fe2+ and H2O2 concentrations) were defined by experimental design. The optimized conditions for each variable, obtained using the response factor (% mineralization), were: 52.0 mg L−1 caffeine, 10.0 mg L−1 Fe2+ and 42.0 mg L−1 H2O2 (replaced in kinetic experiments). Under these conditions, in ultrapure water (UW), the…

    The degradation of caffeine in different kind of effluents, via photo-Fenton process, was investigated in lab-scale and in a solar pilot plant. The treatment conditions (caffeine, Fe2+ and H2O2 concentrations) were defined by experimental design. The optimized conditions for each variable, obtained using the response factor (% mineralization), were: 52.0 mg L−1 caffeine, 10.0 mg L−1 Fe2+ and 42.0 mg L−1 H2O2 (replaced in kinetic experiments). Under these conditions, in ultrapure water (UW), the caffeine concentration reached the quantitation limit (0.76 mg L−1) after 20 min, and 78% of mineralization was obtained respectively after 120 min of reaction. Using the same conditions, the matrix influence (surface water – SW and sewage treatment plant effluent – STP) on caffeine degradation was also evaluated. The total removal of caffeine in SW was reached at the same time in UW (after 20 min), while 40 min were necessary in STP. Although lower mineralization rates were verified for high organic load, under the same operational conditions, less H2O2 was necessary to mineralize the dissolved organic carbon as the initial organic load increases. A high efficiency of the photo-Fenton process was also observed in caffeine degradation by solar photocatalysis using a C reactor, as well as intermediates of low toxicity, demonstrating that photo-Fenton process can be a viable alternative for caffeine removal in wastewater.

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Proyectos

  • Empresas

    https://apps.apple.com/br/app/ita%C3%BA-empresas-conta-pj/id348274534

  • Vivo Easy

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  • Happy Android

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    The app lets you manage your phone line, buy a chip, monitor data, contract plans and packages, and more.

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  • Happy iOS

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    The app lets you manage your phone line, buy a chip, monitor data, contract plans and packages, and more.

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  • Meu Nextel Android

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    The application allows you to manage your phone line, view invoices, manage data, change your payment method, hire packages and more.

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  • Meu Nextel iOS

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    The application allows you to manage your phone line, view invoices, manage data, change your payment method, hire packages and more.

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  • Guide Investimentos

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    Development of Android and iOS applications for the stock market.

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  • InfoMoney

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    InfoMoney App is an application that allows customers to track the stock market through news and quotes.

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  • Empiricus APP

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    Empiricus App is an Empiricus Research application for receiving recommendations about investments in the stock market, optimizing the way your customers apply for money.

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  • Fast Mobile

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    Fast Mobile is a stock market application with quotes and trading.

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  • Netsabe

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    Netsabe is a guide to information, entertainment, and unique content.

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  • MyPush

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    MyPush is a multi-platform instant messaging solution for exchanging information between private or public organizations and their end s, to provide a secure environment for professional and corporate mail.

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