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Bipolar membrane electrodialysis butyl acrylate water waste from organic research

Author: LiZuo
Tutor: LiFuQin
School: Hebei University of Engineering
Course: Municipal Engineering
Keywords: Bipolar membrane Electrodialysis Acrylic acid P-toluenesulfonate Butyl acrylate wastewater
CLC: X703
Type: Master's thesis
Year: 2011
Downloads: 93
Quote: 1
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Abstract


In this paper, a bipolar membrane electrodialysis butyl acrylate water waste from the process of organic acids studied for bipolar membrane electrodialysis recycling of organic acids in the application of industrial production to provide theoretical support. A three compartment bipolar membrane electrodialysis device wastewater butyl acrylate and methyl acrylate, sodium benzene sulfonate were converted to acrylic acid and p-toluenesulfonic acid , of the operating voltage, the circular flow of the compartment , initial feed chamber with an acid solution chamber and a feed chamber volume ratio of the initial concentration of the transformation process. The results showed that the three compartment bipolar membrane electrodialysis recovered organic optimum operating voltage of the test 25V, each compartment circulating flow 80L / h, feed chamber initial concentration of sodium acrylate 130.6g / L , and p-toluenesulfonic acid sodium 20.4g / L, initial feed chamber with an acid solution chamber volume ratio 5:1. Through the intermittent feeding mode and a two-stage feed - two modes discharge mode , the bipolar membrane electrodialysis concentrated wastewater actual test results show that a two-stage feed - discharge mode is on better run mode. Feeding on a two - the actual discharge mode concentrated Wastewater economic accounting , derived from the use of bipolar membrane electrodialysis wastewater recycling acrylic acid butyl acrylate final cost of only 0.886 yuan / mol, fully proved bipolar membrane electrodialysis butyl acrylate water waste from the economic viability of organic acids . Meanwhile , the use of bipolar membrane electrodialysis butyl acrylate water waste from organic acids can also reduce wastewater COD, TOC, TN and other indicators of content for future biological wastewater treatment greatly reduce the difficulty and reduce production costs.

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
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