Advanced Treatment of Biochemical Treated Coking Wastewater by Ozonation Process

被引:3
|
作者
Yang, Demin [1 ,2 ]
Yuan, Jianmei [3 ]
机构
[1] Chongqing Inst Geol & Mineral Resources, Chongqing Key Lab Exogen Mineralizat & Mine Envir, Chongqing, Peoples R China
[2] Chongqing Res Ctr, State Key Lab Coal Resources & Safe Min, Chongqing, Peoples R China
[3] Southwest Petr Univ, Sch Chem & Chem Engn, Chengdu, Peoples R China
关键词
coking wastewater; ozonation; advanced treatment; hydroxyl radicals; CATALYTIC OZONATION; DEGRADATION; OZONE; MECHANISM; KINETICS; REMOVAL; CARBON; SYSTEM;
D O I
10.4028/www.scientific.net/AMR.726-731.2515
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Advanced treatment of biochemical treated coking wastewater was studied experimentally with ozonation process. The effects of initial pH value, ozone concentration, reaction temperature, and reaction time on the COD and color removal rate were investigated. The results showed that ozonation was an effective method for advanced treatment of biochemical treated coking wastewater. The increasing of initial pH value, ozone concentration, reaction temperature, and reaction time has enhanced the removal rate of COD and color. Meanwhile, the results also revealed that the maximal COD and color removal rate of 69.65% and 92.27% could be reached under the optimal conditions of the initial pH value is 10.5, ozone concentration is 150 mg/L, reaction temperature is 298 K, and reaction time is 30 min.
引用
收藏
页码:2515 / +
页数:2
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