文章基本信息

标题：Disinfection of secondary treated wastewater using under pressure dissolved oxygen, copper ions and hydrogen peroxide
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作者：Nabizadeh R ; Alimohammadi M ; Nemati R 等
期刊名称：Global Nest
印刷版ISSN：1790-7632
电子版ISSN：2241-777X
出版年度：2013
卷号：15
期号：1
页码：121-130
DOI：10.30955/gnj.000759
出版社：Global Nest
摘要：Many studies have been conducted to increase the efficiency of hydrogen peroxide (HP) in wastewater disinfection to make HP disinfection more cost-effective with respect to reduced concentration and detention time. In this study, the effects of HP, copper ions (Cu2+), and 1 atm. pressure-dissolved oxygen (termed O2 in this study) applied either alone or in a binary or ternary combination to undisinfected secondary treated wastewater (STW) were assessed. Undisinfected STW in contact (1 h) with various doses of HP (alone), Cu2+ (alone), HP/Cu2+ (binary) and HP/Cu2+ with O2 (ternary) showed a variable fecal coliforms (FC) removal pattern, ranging from 0.03 to 3.8 logs inactivation. O2 had the highest synergistic effect when combined with Cu2+ and HP. The use of 200 mg L-1 HP + 5 mg L-1 Cu2+ together with O2 caused a 0.65 log inactivation of FC more than the binary combination (i.e., 200 mg L-1 HP + 5 mg L-1 Cu2+).
关键词：Fecal coliforms; Synergistic effect; Wastewater reuse