Generation Of Effluents
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. THE SUCCESS OF THE BRAZILIAN ALCOHOL PROGRAM (PROÁLCOOL) - A DECADE-BY-DECADE BRIEF HISTORY OF ETHANOL IN BRAZIL
ABSTRACT The National Alcohol Program (Proálcool) was a strategic policy of the Brazilian government to replace petroleum-based fuels with alcohol (ethanol). Based on the review, we can choose the 1960s as a start point for a leap in development. Over the 500 years of sugarcane history in Brazil, the crop enters the second decade of the 21st century with ex
Eng. Agríc.. Publicado em: 2020-04
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2. Enrichment of Copper, Lead, and Tin by Mechanical Dry Processing of Obsolete Printed Circuit Board Residues
Waste printed circuit boards (WPCB) residues were mechanically processed to concentrate their metal content aiming to reduce costs of the subsequent recovery of copper, tin, and lead. A fully dry route was proposed to avoid the generation of liquid effluents that would require additional treatment. Firstly, 10.7% of the residue was segregated by magnetic sep
Mat. Res.. Publicado em: 24/10/2019
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3. MONITORING OF TRANSPORTATION NETWORK OF CARBONIZATION GASES IN COGENERATION PROJECTS
RESUMO O objetivo desse trabalho foi avaliar o desempenho e a eficiência de um sistema de transporte de gases da carbonização até um queimador. O sistema de transporte de gases da carbonização consiste na retirada destes da chaminé dos fornos, os quais passam por tubulações até atingirem o queimador. Para evitar a condensação dos gases e geraçã
Rev. Árvore. Publicado em: 11/02/2019
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4. NANOFILTRATION AND REVERSE OSMOSIS APPLIED TO GOLD MINING EFFLUENT TREATMENT AND REUSE
Abstract Gold mining and ore processing are activities of great economic importance. However, they are related to generation of extremely polluted effluents containing high concentrations of heavy metals and low pH. This study aims to evaluate the optimal conditions for gold mining effluent treatment by crossflow membrane filtration regarding the following v
Braz. J. Chem. Eng.. Publicado em: 2017-01
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5. Energy generation in a Microbial Fuel Cell using anaerobic sludge from a wastewater treatment plant
ABSTRACT In microbial fuel cells (MFCs), the oxidation of organic compounds catalyzed by microorganisms (anode) generates electricity via electron transfer to an external circuit that acts as an electron acceptor (cathode). Microbial fuel cells differ in terms of the microorganisms employed and the nature of the oxidized organic compound. In this study, a co
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-10
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6. Aproveitamento de membranas de osmose inversa descartadas da indústria para o reuso da purga de torres de resfriamento
Reverse osmosis plants use new membranes to produce demineralized water. After a period of three to five years, the membranes are replaced by news ones due to levels of treatment which are not suitable for production of water with the desired characteristics. This process generates a lot of rejected modules causing an environmental problem. The present work
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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7. Software para definiÃÃo e avaliaÃÃo de unidades de manejo em Agricultura de precisÃo / Software for definition and evaluation of management zones in Precision agriculture
Water and soil conservation is essential for water resources management. Thus, conservationist actions are developed and applied in order to make part of a set of measures which enable the supply management, based on an appropriate recharge of the aquifers as well as the improvement of their quality, from the reduction of erosive processes and volume of effl
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2011
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8. Avaliação (em escala laboratorial) da aplicação do processo eletrolítico em efluente de lagoa de estabilização de esgoto urbano
Physico-chemical and microbiological parameters were evaluated before and after applying an electrolytic process to effluents of a stabilization lagoon, in the presence or absence of "salt". Chlorine generation and bactericidal properties of the treatments were studied following two experiments. Effluent pH increased with electrolysis time. In the absence of
Química Nova. Publicado em: 2010
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9. Avaliação técnica e econômica para aproveitamento da biomassa caprina em biodigestores no Semi-Árido Baiano.
The exhaustion of some fossil energy sources, caused by the increasing demand in the last years, as well as the worldwide consciousness about the environment issues, has brought a continuous quest for new sustainable means of production. In this new context, the biogas technology represents a real possibility of generating clean energy and, at the same time,
Publicado em: 2010
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10. Avaliação da biodegradabilidade de efluentes têxteis do beneficiamento secundário de malhas de poliéster tratados com Reagente de Fenton
From the environmental point of view, the textile sector is outstanding for the generation of large amounts of biorecalcitrant effluents. In this paper the textile effluent biodegradability, both before and after its treatment with Fenton's Reagent, were compared by means of biologic tests. These tests showed that the Fenton treatment lowered the biodegradab
Química Nova. Publicado em: 2009
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11. Cadeia do biodiesel da bancada à indústria: uma visão geral com prospecção de tarefas e oportunidades para P&D&I
Contextualized overview of the Biodiesel Production Chain, from the lab bench to the industry, with critical evaluation of state-of-art and technological development through scientific articles and patents, focusing on feedstock, reaction/production, first and second generation processes, specification and quality, transport, storage, co-products (effluents
Quím. Nova. Publicado em: 2009
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12. AvaliaÃÃo dos resÃduos argiloso proveniente da indÃstria do alumÃnio como adsorvente de corantes tÃxteis
The environmental impact caused by the textile industries generation of liquid effluents has been a major concern. One major environmental problem caused by the textile dyeing process in industrial laundries is the large amount of effluents which contain a high amount of toxic substances such as the dye itself. Removal of color from the effluents is fundam
Publicado em: 2008