Treatment of Industrial Dimethylamine Wastewater in a Distillation Tower at Lab Scale

Abstract:

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 105～106°C, reflux ratio between 2～3, Final concentrations of less than 50 mg•L-1 at the bottom was obtained.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 326-329
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.326
• Online since: January 2013
• Authors: Qiu Lian Chang
• Keywords: High-Efficiency Packing, Vapor-Liquid Equilibrium (VLE), Wastewater Treatment

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