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Type: Artigo de periódico
Title: Remediation And Toxicity Removal From Kraft E1 Paper Mill Effluent By Ozonization.
Author: Freire, R S
Kubota, L T
Durán, N
Abstract: 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.
Subject: Biological Assay
Escherichia Coli
Industrial Waste
Oxidants, Photochemical
Water Pollution
Water Purification
Rights: fechado
Identifier DOI: 10.1080/09593332208618224
Date Issue: 2001
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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