Tannery Industry
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. BIODEGRADATION OF ACACIA AND CHESTNUT TANNINS BY NATIVE ISOLATES OF THE GENUS Penicillium AND Aspergillus
Abstract In the present work, the potential of native isolates of fungi strains to biodegrade vegetable tannins used in the tanning industry was evaluated. Penicillium citrinum showed to be more efficient for consumption of acacia tannin, reaching 94.85%. Aspergillus chevalieri needs a greater adaptation phase (48 h) in both acacia and chestnut medium, evide
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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2. Biomonitoring of Toxic Elements in Plants Collected Near Leather Tanning Industry
The present work aimed the study of atmospheric deposition of toxic elements near to a tannery industry by collecting black material deposited on leaf surfaces of cinnamon trees (Cinnamomum zeylanicum). Elements such as As, Ba, Cr, Cu, Fe, Ni, Pb, Sb, V, and Zn were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). For comparison purpose, bl
J. Braz. Chem. Soc.. Publicado em: 2019-02
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3. Memória do trabalho e memória ambiental: as indústrias de curtume do Vale do Rio dos Sinos/RS
Resumo O artigo apresenta uma discussão sobre paisagem urbana, memória do trabalho e memória ambiental no Vale do Rio dos Sinos - RS, Brasil, por meio de uma coleção de texto e imagem organizada em torno das trajetórias sociais de sujeitos que estiveram ou ainda estão vinculados à indústria do couro na região. Este material compõe o acervo de cole
Rev. Bras. Estud. Urbanos Reg.. Publicado em: 01/01/2019
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4. Enhanced production of Aspergillus tamarii lipase for recovery of fat from tannery fleshings
The influence of various oil cakes has been investigated for high level production of lipase using Aspergillus tamarii MTCC 5152. By solid state fermentation in wheat bran containing 2.5% w/w gingili oil cake at 70% v/w moisture content the fungus produced a maximal yield of lipase (758 ± 3.61 u/g) after 5 days of incubation using 2% v/w inoculum containing
Braz. J. Microbiol.. Publicado em: 2013-12
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5. Susceptibility to DNA damage in workers occupationally exposed to pesticides, to tannery chemicals and to coal dust during mining
Our mutagenesis group has been studying with important economic drivers of our state, such as agriculture, the footwear and leather industry and open-cast coal mining. Working conditions in these sectors have potentially harmful to humans. The aim of these studies is to determine the health risk of workers by biomonitoring subjects exposed to genotoxic agent
Genet. Mol. Biol.. Publicado em: 2012
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6. Hide unhairing and characterization of commercial enzymes used in leather manufacture
The enzymatic treatment of hides in tannery processes is a promising technology. However, the reaction kinetics of commercial enzymes available to the leather industry are not fully understood and their activities have been mainly determined with model proteins such as casein as substrate, which are not of direct relevance for cattle hides. Therefore, it is
Brazilian Journal of Chemical Engineering. Publicado em: 2011-09
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7. Tratamento de efluentes provenientes de curtumes utilizando os processos eletroquímico e fotoeletroquímico / Treatment of tannery wastewaters using electrochemical and photoelectrochemical process
In this work the degradation of tannery wastewaters using electrochemical, photocatalytic and photoelectrochemical processes was studied. Wastewaters collected in an industry and solutions prepared in the laboratory, which simulated real wastewaters, were used in these studies. Effects of the anodic material, current density, presence of sulfate and chloride
Publicado em: 2009
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8. Incorporation of solid wastes in red ceramics: an updated review
A review on the fundamentals and technological advances in the incorporation of industrial solid wastes into red ceramics was updated since 1997, when the first overview on this subject was published by Dondi, Marsigli and Fabbri. Other works conducted before this period, but not covered by that overview were also reviewed. Modifications were introduced in t
Matéria (Rio de Janeiro). Publicado em: 2009
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9. Remoção de Pb(II) e Cr(VI) de efluentes industriais utilizando resíduos de Ipê (Tabebuia spp.), Maçaranduba (Manilkara spp.) e Pequiá (Caryocar spp.)
(Brazilian) Sawdust samples of Caryocar spp.; Manilkara spp. and Tabebuia spp. have been used for Cr(VI) and Pb(II) adsorption from water at 25oC. The series of adsorption isotherms were adjusted to a modified Langmuir equation from data obtained by suspending the sawdust with K2Cr2O7 or Pb(NO3)2 solutions, which gave the maximum number of moles adsorbed as
Publicado em: 2008
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10. Reciclagem do resíduo de cromo da indústria do curtume como pigmentos cerâmicos. / Recycling of chromium waste of leather industry as ceramic pigments.
In this work, an alternative for recycling the chromium waste from the leather industry, incorporating it to formulations of ceramic pigments was studied. Firstly, the characterization of chromium waste was performed, as well as the extraction of soluble salts, chlorides, sulfates, ad carbonates. After that, the calcination, for the elimination of the organi
Publicado em: 2006
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11. Fotocatálise heterogênea no polimento de efluentes sintéticos de curtume: alternativa para minimizar impactos ambientais
The industry is a section of the contemporary society with great pollutant potential of the environment, especially of the aquatic ecosystems. The tanning industries are big producing of dejections with significant amounts of organic matter and of chrome. The conventional processes of treatment applied those dejections, not always they possess good effective
Publicado em: 2006
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12. Uso de sistema wetland construÃdo no pÃs-tratamento de efluente de curtume / Constructed wetland system use in the tannery industry wastewater post-treatment
A quantidade de Ãguas residuÃrias produzidas por um curtume variam entre 30-50L por quilograma de pele processada. Do total dos efluentes, cerca de 10% correspondem ao estÃgio inicial de fabricaÃÃo do couro e o restante remanescente corresponde ? s demais etapas do processo como a neutralizaÃÃo, tintura, lavagem, etc. O uso de wetlands como alternativ
Publicado em: 2006