Remediation of Kraft effluent by ozonation:: Effect of applied ozone concentration and initial pH

被引：24

作者：

Assalin, MR

Rosa, MA

Durán, N

机构：

[1] Univ Estadual Campinas, Biol Chem Lab, Inst Quim, BR-13083970 Campinas, SP, Brazil

[2] Univ Estadual Campinas, Inst Quim, Biol Chem Lab, Sao Paulo, Brazil

[3] Univ Mogi Cruzes, Nucleo Ciencias Ambientais, Sao Paulo, Brazil

来源：

OZONE-SCIENCE & ENGINEERING | 2004年 / 26卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

ozone; paper mill effluent; Kraft mill wastewater; concentration; pH effect; degradation;

D O I：

10.1080/01919510490456196

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, the impact of ozone concentration (14 and 7mg/L-1 applied for 120min) and pH (10 and 12) on color removal, and reduction of dissolved organic matter (DOC) and total phenol of Kraft El effluent was investigated. The degradation kinetics for the all parameters at pH 12 were slower than of those at pH 10. The degradation at pH 10 ceased after approximately 120min, while for the ozonation at pH 12, ozone was still being consumed even after 5 h of treatment. When the ozone dose was increased, the removal efficiency increased; however, the DOC removal efficiency continued limited.

引用

页码：317 / 322

页数：6

共 21 条

[1] Partial oxidation by ozone to remove recalcitrance from wastewaters - A review [J].