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Previous issue date: 2015-05-19 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Os efluentes t?xteis s?o uma mistura complexa de muitos poluentes que cont?m altas cargas org?nicas, cor intensa e compostos t?xicos. A elevada toxicidade do efluente pode ocasionar o aumento da demanda qu?mica (DQO) e bioqu?mica (DBO) de oxig?nio, elevada temperatura, acidez ou alcalinidade, causando danos e problemas ambientais. Al?m de representar uma s?ria amea?a para a sa?de humana este tipo de efluente tamb?m ? bastante t?xico para a maioria dos organismos aqu?ticos. E por esta raz?o, devem-se cumprir os limites de concentra??o para fontes de emiss?o e sistema de esgoto. O presente estudo teve como objetivo investigar o desempenho do tratamento eletroqu?mico de um efluente t?xtil para a remo??o da cor, turbidez, oxig?nio dissolvido (OD) e mat?ria org?nica dissolvida investigando a influ?ncia dos par?metros experimentais, tais como o material eletrocatal?tico (Ti/Pt e Ti/Pt- SnSb) e densidade de corrente, a fim de comparar a sua efici?ncia, o consumo de energia e custo. Os corantes Remazol Yellow 3RS (RY 3RS), Remazol Red RR Gran (RR-RR Gran) e Navy Blue CL-R (NB CL-R) foram utilizados para gera??o de efluente t?xtil laborat?rio simulado. Os resultados mostraram que a aplica??o do processo de oxida??o eletroqu?mica favorece a elimina??o da cor de forma eficiente indepente do material e corrente utilizada, mas a redu??o da mat?ria org?nica foi diretamente dependente do material eletrocatal?tico utilizado e a sua eletroafinidade com as estruturas dos corantes. / The textile effluents are a complex mixture of many pollutants that contain high organic
loads, severe color and toxic compounds. The high concentration of the textile effluent may
cause increased chemical demand (COD) and biochemical (BOD) of oxygen, elevated
temperature, acidity or alkalinity, causing damage and environmental problems. In addition to
representing a serious threat to human health such effluent is also quite toxic to most aquatic
organisms. And for this reason, one must meet the concentration limits for emission sources
and sewage system. This study aimed to investigate the performance of electrochemical
treatment of a textile effluent for the removal of color, turbidity, dissolved oxygen (DO) and
dissolved organic matter by investigating the influence of experimental parameters such as the
electrocatalyst materials (Ti/Pt and Ti/Pt-SnSb) and current density in order to compare their
efficiency, energy consumption and cost. The dye Novacron Blue CD (NB) was employed in
synthetic solution, while the dyes Remazol Yellow 3RS (RY 3RS) Remazol Red RR Gran
(RR-RR Gran) and Navy Blue CL-R (NB CL-R) were used to generate simulated textile
effluent laboratory. The results showed that the application of electrochemical oxidation
process favors the elimination of color effectively independent the electrocatalytic material
and current used, as well as treated effluent. However, the influence of electrocatalytic
material was crucial to reduction of the organic matter in all cases.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20712 |
| Date | 19 May 2015 |
| Creators | Ferreira, Maiara Barbosa |
| Contributors | 01139059980, http://lattes.cnpq.br/2485073932883264, Nascimento, Jos? Heriberto Oliveira do, 02452573493, http://lattes.cnpq.br/7033735079037677, Gonzalez, Ricardo Andr?s Salazar, 00000000000, Silva, Djalma Ribeiro da, Huitle, Carlos Alberto Martinez |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM QU?MICA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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