Efficiency and operating cost of electrocoagulation system applied to the treatment of dairy industry wastewater
The objective of this study was to apply the technique of electrocoagulation (EC) in the treatment of dairy industry wastewater, using a system of bench. It was used a source of 10 amps and an electrode of iron containing six plates of 14x6 cm. Were made variation of pH (4.5 to 6), intensity of elec...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Brasil |
| Institución: | Universidade Tecnológica Federal do Paraná (UTFPR) |
| Repositorio: | Repositório Institucional da UTFPR (da Universidade Tecnológica Federal do Paraná (RIUT)) |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.utfpr.edu.br:1/28147 |
| Acceso en línea: | http://repositorio.utfpr.edu.br/jspui/handle/1/28147 https://doi.org/10.4025/actascitechnol.v37i3.26452 |
| Access Level: | acceso abierto |
| Palabra clave: | Águas residuais - Purificação Condutividade elétrica Eletrólise Eletrodos Oxidação Sewage - Purification Electric conductivity Electrolysis Electrodes Oxidation CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA |
| Sumario: | The objective of this study was to apply the technique of electrocoagulation (EC) in the treatment of dairy industry wastewater, using a system of bench. It was used a source of 10 amps and an electrode of iron containing six plates of 14x6 cm. Were made variation of pH (4.5 to 6), intensity of electric current (1 to 2A) and time of electrolysis (30 to 60 min.). The efficiency of the treatment was confirmed by analysis of turbidity, color and COD. The reduction of turbidity was greater than 98%, reaching a record 99.98%. The largest reduction in color was 94.90% and 11 of the 27 tests the efficiency was greater than 90%. The greatest reduction of COD was 96.36%. The treatment proved to be more efficient at pH 4.5, time 60 min. and current 1.5A. The estimated cost of operation was US$ 1.04 m3 which demonstrates the viability of treatment of dairy industry wastewater. |
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