AVALIAÇÃO DA EFICIÊNCIA DE AGENTES COAGULANTES EM EFLUENTE DE FRIGORÍFICO
| Autor: | Danielli Chagas, Alexandre Teixeira Souza |
|---|---|
| Jazyk: | portugalština |
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Flocculation Aluminum sulphate Chemistry Pulp and paper industry lcsh:TA1-2040 Need treatment Automotive Engineering Tannin Coagulation (water treatment) Turbidity lcsh:Engineering (General). Civil engineering (General) lcsh:Science (General) Effluent Tanino Coagulação / floculação Efluentes Flocculation test lcsh:Q1-390 |
| Zdroj: | Colloquium Exactarum, Vol 12, Iss 1 (2020) |
| ISSN: | 2178-8332 |
| Popis: | In the refrigeration industry, a large amount of water is used throughout processes, generating effluents that need treatment before release. The purpose of this work was to make a comparative study of three coagulants used in the treatment of effluents: Aluminum Polychloride (PAC), Aluminum Sulphate (Al2(SO4)3) and Vegetable Tannin, with the aid of a flocculant (Anionic Polymer) by analyzing COD removal efficiency and turbidity. Jar coagulation / flocculation tests were conducted to optimize the concentration of coagulants. It was found that the natural coagulant presented a small variation in the pH parameter, avoiding the use of chemicals for its correction. The results of turbidity removal percentages indicated a great potential for Tannin when compared to the other chemical coagulants. |
| Databáze: | OpenAIRE |
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