| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308691 |
| ISSN: | 0104-6632 |
| Authors: | Wilberg, K.Q1 Nunes, D.G Rubio, J |
| Institutions: | 1Universidade Federal do Rio Grande do Sul, Departamento de Engenharia de Minas, Porto Alegre, Rio Grande do Sul. Brasil |
| Year: | 2000 |
| Season: | Dic |
| Volumen: | 17 |
| Number: | 4-7 |
| Pages: | 907-914 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | This work presents a process for phenol removal comprising a reaction step in which phenol is polymerized in the presence of an enzyme followed by a separation step involving dissolved air flotation (DAF). A crude preparation from horseradish roots was used as a low purity source of the enzyme horseradish peroxidase (HRP). The technical feasibility of the process was studied at bench scale using 1 to 10 mM synthetic phenol solutions. Experimental results showed the potential of the proposed technique. A phenol conversion higher than 99 % was observed at the polymerization step and an efficiency higher than 94 % was achieved at the separation stage. Despite the use of a low purity source of HRP, which increases the input of organic matter, the chemical oxygen demand (COD) decreased by 50 % |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería ambiental, Ingeniería de minas, Fenol, Remoción química, Peroxidasa, Flotación |
| Keyword: | Engineering, Environmental engineering, Mining engineering, Phenol, Chemical removal, Peroxidase, Flotation |
| Full text: | Texto completo (Ver HTML) |
