Artículos de revistas
Remediation And Toxicity Removal From Kraft E1 Paper Mill Effluent By Ozonization.
Registro en:
Environmental Technology. v. 22, n. 8, p. 897-904, 2001-Aug.
0959-3330
10.1080/09593332208618224
11561947
Autor
Freire, R S
Kubota, L T
Durán, N
Institución
Resumen
The degradation of Kraft E1 pulp mill effluent was studied by four different ozonization oxidation systems (O3/pH3, O3/pH11, O3/pH11/H2O2, O3/pH11/UV). The investigation was focused on the reduction of total organic carbon (TOC), total phenols, color and acute toxicity (monitoring by inhibition of Escherichia coli respiration). For a reaction time of 90 minutes, the O3/pH11/UV was the most effective process for decoloration (45%). The O3/pH11/H2O2, O3/pH11/UV and O3/pH11 processes showed the best results for total phenols reduction (approximately/= 90%). None of the studied processes showed a significant TOC reduction. The O3/pH11/UV and O3/pH11 processes were effective for the acute toxicity reduction. Different kinetic parameters were also determined in order to quantify the reactivity of the effluent towards the applied oxidation systems. 22 897-904