Treatment of a foul condensate from kraft pulping with horseradish peroxidase and hydrogen peroxide

被引：54

作者：

Wagner, M ^{[1
]}

Nicell, JA ^{[1
]}

机构：

[1] McGill Univ, Dept Civil Engn & Appl Mech, Montreal, PQ H3A 2K6, Canada

来源：

WATER RESEARCH | 2001年 / 35卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

horseradish peroxidase; wastewater; toxicity; lignin; phenol; foul condensate;

D O I：

10.1016/S0043-1354(00)00276-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Foul condensates originating from the I(raft recovery process contain phenolic compounds whose removal might render these process streams more useful for reuse in other plant operations or more amenable to biological degradation. Treatment of a foul condensate with horseradish peroxidase and H2O2 selectively targeted phenolic compounds resulting in a reduction of the total phenols concentration below 1 mg/L as well as a substantial toxicity drop as measured using the Microtox(R) assay, however, only marginal COD removal was achieved. Comparisons of treatments between synthetic wastewaters and real wastewaters to which phenol were added revealed that the condensate contained species that protect the enzyme from inactivation by reaction products. Analytical data as well as experimental results suggest that these species are lignin derivatives. (C) 2000 Elsevier Science Ltd. ALI rights reserved

引用

页码：485 / 495

页数：11

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