Water Hyacinth
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Pretreatment and Enzymatic Saccharification of Water Hyacinth, Sugarcane Bagasse, Maize Straw, and Green Coconut Shell Using an Organosolv Method with Glycerol and FeCl3
A method to pretreatment of biomasses using glycerol as a green solvent was developed. Optimization of organosolv pretreatment was performed using a 23 factorial design, investigating synergism among the variables particle size (from < 0.85 to > 2.0 mm), FeCl3 concentration (0.025-0.175 mol L-1), and temperature (160-220 °C). Although the effects of the var
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. DESENVOLVIMENTO E VALIDAÇÃO DE MÉTODO PARA DETERMINAÇÃO DE BISFENOL A E ETINILESTRADIOL EM AGUAPÉ E MINI-PAPIRO PROVENIENTES DE WETLANDS CONSTRUÍDAS
Bisphenol A and ethinylestradiol, both considered as endocrine disruptors, have been found in surface water and effluents from municipal wastewater supply and can cause adverse health effects on wildlife species and in human beings at extremely low level. In order to remove these compounds from wastewater, constructed wetlands has been used since it proved t
Quím. Nova. Publicado em: 21/10/2019
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3. Eichhornia crassipes biomass as a dietary supplement for Pterophyllum scalare (Schultze, 1823)
ABSTRACT. Current study evaluates the macrophyte biomass of water hyacinth, Eichhornia crassipes, in diet food to improve the growth and survival of angelfish, Pterophyllum scalare. The liquid (extract) and ground modes are employed. Specific growth rate, weight gain, feed intake and final body weight in basal diet and macrophyte extract biomass diets were s
Acta Sci., Anim. Sci.. Publicado em: 29/04/2019
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4. Potential Bio-Oil Production from Invasive Aquatic Plants by Microscale Pyrolysis Studies
The invasive aquatic plants Eichhornia crassipes (water hyacinth), Eichhornia azurea, and Nymphaea spp. were evaluated as sources of lignocellulosic biomass for the production of bio-oil. These plants have high growth rates that can lead to various environmental problems and the production of large amounts of waste biomass. The materials were characterized i
J. Braz. Chem. Soc.. Publicado em: 2018-01
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5. The physiological and biochemical mechanism of nitrate-nitrogen removal by water hyacinth from agriculture eutrophic wastewater
ABSTRACT Large amount of agriculturl wastewater containing high level nitrate-nitrogen (NO3 --N) is produced from modern intensive agricultural production management due to the excessive use of chemical fertilizers and livestock scale farming. The hydroponic experiment of water hyacinth was conducted for analyzing the content of NO3 --N, soluble sugar conten
Braz. arch. biol. technol.. Publicado em: 20/10/2016
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6. Lead tolerance of water hyacinth (Eichhornia crassipes Mart. - Pontederiaceae) as defined by anatomical and physiological traits
Este estudo teve como objetivo verificar a tolerância do aguapé ao chumbo e verificar as modificações anatômicas e fisiológicas decorrentes. As plantas de aguapé foram cultivadas em solução nutritiva com cinco diferentes concentrações de chumbo sendo: 0,00; 0,50; 1,00; 2,00 e 4,00 mg L–1 por um período de 20 dias. Foram avaliadas a fotossíntes
An. Acad. Bras. Ciênc.. Publicado em: 2014-09
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7. Eichhornia crassipes: an advantageous source of shikimic acid
The water hyacinth (Eichhornia crassipes (Mart.) Solms, Pontederiaceae) is considered as one of the most productive plants on earth, and an aquatic weed, which causes serious environmental problems. In this study, this species is presented as an alternative of a renewable source of shikimic acid. Although this acid is an important intermediate in the biosynt
Rev. bras. farmacogn.. Publicado em: 2014-08
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8. Remoção de compostos fenólicos de soluções aquosas utilizando carvão ativado preparado a partir do aguapé (Eichhornia crassipes): estudo cinético e de equilíbrio termodinâmico
Activated carbon was produced from the water hyacinth (CAA) by impregnation with ZnCl2 (1:2), followed by pyrolysis at 700 ºC, under N2. CAA was used for the adsorption of phenol, m-cresol and o-cresol from aqueous solutions, using batch adsorption. The effects of contact time, pH, temperature and concentration on sorption were investigated. Adsorption capa
Quím. Nova. Publicado em: 2014-06
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9. Production of fermentable sugars by combined chemo-enzymatic hydrolysis of cellulosic material for bioethanol production
To change the recalcitrant nature of the lignocellulosic material for maximum hydrolysis yield, a comprehensive study was done by using sulphuric acid as an exclusive catalyst for the pretreatment process. The enzymatic digestibility of the biomass [Water Hyacinth: Eichhornia crassipes] after pretreatment was determined by measuring the hydrolysis yield of t
Braz. J. Chem. Eng.. Publicado em: 2014-06
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10. Biossorventes â biomassa de aguapà e esferas de alginato/goma do cajueiro â para adsorÃÃo de azul de metileno. / BIOSORBENTS - WATER HYACINTH BIOMASS AND SPHERES ALGINATE / CASHEW GUM - FOR ADSORPTION OF METHYLENE BLUE
In this work was carried out an extensive investigation of the adsorption properties of synthetic dyes on different parts (rhizome, root, stolon and petiole) of Eichhornia crassipes (water hyacinth) and a comparison with the adsorption capacity of the biopolymer alginate beads doped with water hyacinth biomass. The biomasses and spheres were structurally cha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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11. Modelagem sistêmica do ciclo de vida do aguapé no Pantanal e anãlise do uso desta biomassa para a produção de bio-óleo e bio-fertilizante / System modeling of water hyacinth life cycle in Pantanal and analysis of the use of this biomass for bio-oil and bio-fertilizer production
O Pantanal ocupa uma área extensa do Brasil em torno de 140.000 km²; seus ecossistemas são caracterizados por áreas com alagamento periódico, campos inundados constantemente e ambientes aquáticos naturais com lagoas (baías), rios e canais (vazantes e corixos); não existem quedas d¿ água para a geração de energia elétrica dentro da bacia. Em virt
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
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12. Sistemas de defesa antioxidativo contra a toxicidade induzida por arsênio em aguapé (Eichhornia crassipes (Mart.) Solms) / Antioxidative defense systems against toxicity induced by arsenic in water hyacinth (Eichhornia crassipes (Mart.) Solms)
Plantas de aguapé (Eichhornia crassipes (Mart.) Solms) foram submetidas a concentrações tóxicas de arsênio (As) para analisar a capacidade de absorção desse metaloide por essa macrófita e os seus efeitos tóxicos no crescimento e nas alterações estruturais em folhas e raízes, além de estudos dos mecanismos bioquímicos relacionados ao metabolismo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011