Disinfection With Chlorine
Mostrando 1-12 de 72 artigos, teses e dissertações.
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1. Dermoscopy of late-onset nevus comedonicus,
ABSTRACT BACKGROUND: Faced with a pandemic, all healthcare actions need to reflect best practices, in order to avoid high transmissibility, complications and even hospitalizations. For hospital environments, the products recommended and authorized by regulatory institutions for environmental cleaning and disinfection need to be highly effective. OBJECTIVE:
An. Bras. Dermatol.. Publicado em: 2020-12
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2. Environmental cleaning to prevent COVID-19 infection. A rapid systematic review
ABSTRACT BACKGROUND: Faced with a pandemic, all healthcare actions need to reflect best practices, in order to avoid high transmissibility, complications and even hospitalizations. For hospital environments, the products recommended and authorized by regulatory institutions for environmental cleaning and disinfection need to be highly effective. OBJECTIVE:
Sao Paulo Med. J.. Publicado em: 2020-12
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3. CHARACTERIZATION OF ENALAPRIL AND RANITIDINE CHLORINATION BY-PRODUCTS BY LIQUID CHROMATOGRAPHY/HIGH-RESOLUTION MASS SPECTROMETRY AND THEIR TOXICITY EVALUATION
Due to its low cost, its capability for disinfection and oxidation, chlorination using gaseous chlorine or hypochlorite salts, has also been commonly applied in water treatment plants for oxidation and disinfection purposes. Little is known about the identity and toxicity of by-products resulting from the chlorination of pharmaceutical micropollutants, such
Quím. Nova. Publicado em: 2017-08
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4. Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants
Anaerobic digestion is an important alternative for domestic wastewater treatment, especially in warm climate regions. Two full-scale anaerobic schemes were investigated: septic tank combined with anaerobic filter (S T A NF) and conventional UASB reactors. Treated effluents from these systems were subjected to disinfection by chlorination. The operational pe
Braz. J. Chem. Eng.. Publicado em: 2013-03
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5. Desinfestação e estabelecimento in vitro de segmentos caulinares de camu-camuzeiro / Disinfestation and in vitro establishment of stem segments of camu-camu tree
The camu-camu tree (Myrciaria dubia (H.B.K.) McVaugh) is a fruit-bearing species belonging to the family Myrtaceae of spontaneous occurrence on the banks of rivers and lakes of Amazonia. It presents economic potential, since its fruits are thought the greatest natural source of vitamin C, bordering 6,112g of ascorbic acid per 100 g of pulp, arising commercia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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6. Aplicação do dióxido de cloro no tratamento de água para consumo humano: desinfecção para controle de oocistos de Cryptosporidium sp., formação de subprodutos e manutenção de residuais desinfetantes em sistemas de distribuição / Chlorine dioxide use in drinking-water treatment: disinfection control of Cryptosporidium sp., byproducts formation, and maintenance of disinfectant residuals in distribution systems
This work aimed at evaluating the use of chlorine dioxide in drinking-water treatment, with emphasis on byproducts formation, maintenance of disinfectant residuals in distribution systems and removal of Cryptosporidium oocysts. In jar test experiments, the application of chlorine dioxide in samples of raw water (simulating pre-oxidation), settled and filtere
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2010
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7. DETERMINAÇÃO DE ÁCIDOS HALOACÉTICOS EM ÁGUA UTILIZANDO TÉCNICAS CROMATOGRÁFICAS / DETERMINATION OF ACIDS IN HALOACÉTICOS WATER USING CHROMATOGRAPHIC TECHNIQUES
Disinfection is an essential step in water treatment. This step, in most cases, is made by the use of chlorine and its derivatives, which have been quite effective. However, the use of chlorination to disinfect water produces various organic substances, among them, haloacetic acids (HAAs), a total of nine species: monochloroacetic acid (MCAA), dichloroacetic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/03/2010
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8. Comparion of the resistance of pathogenic protozoa - Giardia spp. and Cryptosporidium spp. - and indicators microorganisms to sequential disinfection with chlorine-ultraviolet radiation and ozone-ultraviolet radiation / Comparação da resistência de protozoários patogênicos - Giardia spp. e Cryptosporidium spp. - e de microrganismos indicadores à desinfecção sequencial cloro-radiação ultravioleta e ozônio-radiação ultravioleta
Este trabalho teve por objetivo estudar a desinfecção seqüencial cloro-radiação ultravioleta e ozônio-radiação ultravioleta a fim de avaliar a resistência de microrganismos indicadores de poluição fecal - E. coli, coliformes totais e Clostridium perfringens - e compará-la à dos protozoários patogênicos: Giardia spp. e Cryptosporidium spp.. Hou
Publicado em: 2010
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9. Adaptação de equipamento de geração de gases oxidantes para aplicação na desinfecção de água / Adaptation of generator oxidant gases equipament to aplication in water disinfection
Human consumption of water outside of the microbiological standards for drinking constitutes a health and disease risk factor. Through the process of infiltration in the soil, groundwater may be contaminated by the waste generated by human activity and deposited in the soil, waterways or air. The consumption of water in natura, captured in a spring, may lead
Publicado em: 2009
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10. Resistance evaluation of pathogenic microorganisms to sequential disinfection with ozone-ultraviolet radiation and chlorine-ultraviolet radiation / Avaliação da resistência de microrganismos patogênicos à desinfecção sequencial com ozônio-radiação ultravioleta e cloro-radiação ultravioleta
A remoção de microrganismos patogênicos através da desinfecção é uma necessidade para diminuir a incidência de doenças na população humana relacionadas com poluição fecal. A desinfecção sequencial tem grande potencial na remoção de microrganismos, quando comparada com a desinfecção convencional (um desinfetante). Neste trabalho buscou-se c
Publicado em: 2009
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11. Comportamento de sistemas pós-filtros adsorvedores na remoção de compostos orgânicos precursores e subprodutos da desinfecção. / Behavior of post-filter adsorbers in the removal of organic precursors and disinfection byproducts.
The main purpose of this work was to evaluate the performance of a Granular Activated Carbon (GAC) post-filter adsorbers in the removal of organic precursors and in the formation of disinfection byproducts, especially trihalomethanes (THM) in Alto da Boa Vista Water Treatment Plant (ABV WTP), which takes raw water from a highly eutrophized reservoirs. The te
Publicado em: 2009
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12. Investigação da toxicidade, tratabilidade e formação de subprodutos tóxicos em efluentes clorados de lagoas de estabilização com e sem pós-tratamento. / Investigation of toxicity, treatability and toxic disinfection by-products formation in chlorinated stabilization ponds effluents with and without post-treatment.
The main difficulties that the stabilization ponds for sewage treatment systems face to meet the requirements imposed by CONAMA Resolution 357/2005 can highlight the high concentrations of ammonia nitrogen, phosphorus and fecal and total coliform. When the systems use receivers water bodies Class 2 or 3 generate the need for disinfection. Among the different
Publicado em: 2008