Treatment of Industrial dimethylamine wastewater in a distillation tower at lab scale

被引：0
|
作者：
Chang, Qiulian [1 ]
机构：
[1] Res Inst Coal Chem, Full China Coal Res Inst, Beijing 100013, Peoples R China
来源：
ADVANCES IN CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING, PTS 1-5 | 2013年 / 634-638卷
关键词：
high-efficiency packing; vapor - liquid equilibrium (VLE); wastewater treatment; PACKINGS;
D O I：
10.4028/www.scientific.net/AMR.634-638.326
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
One of difficult pollution control tasks for leather plants is the dimethylamine wastewater treatment. It is identified that there are two serious problems occurring in the current treatment process: low removal efficiency and low recycle efficiency. To solve these problems, new-type high efficiency packing and wastewater treatment process are proposed. The rectifying conditions of dimethylamine wastewater were investigated in a laboratory continuous distillation tower. Dimethylamine distillation efficiencies of no less than 47% at the top of tower was obtained, when the bottom temperature was controlled between 105 similar to 106 degrees C, reflux ratio between 2 similar to 3, Final concentrations of less than 50 mg.L-1 at the bottom was obtained.
引用
收藏
页码：326 / 329
页数：4
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