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Butyl acrylate is an important chemical raw material, widely used in chemical , synthetic fibers , adhesives and coatings, leather , textiles, paper and other industries. Acrylate is the most widely used and consumed in the greatest variety. With the increasing market demand for butyl acrylate , butyl acrylate people to produce the resulting wastewater treatment technology more and more attention . For organic acid wastewater butyl acrylate (mainly sodium acrylate and methyl benzene sulfonate) content , single component , with recovery value characteristics, the use of electrodialysis concentrate the organic acid waste , to further improve the resource potential. Studied the electrodialysis process, operating voltage , the initial volume of fresh water and concentrated water circulation flow and other factors on organic acid concentration and water desalination effect . And obtain an optimized process parameters. The results show that , voltage, volume , flow and other operating parameters on butyl acrylate wastewater treatment has a certain influence , in which the volume ratio of the greatest impact on the concentration effect . When the voltage is 10V, the volume ratio of 5:1 , flow rate of 80L / h when the electrodialysis concentrate butyl acrylate organic acid wastewater better results . Can contain sodium acrylate 52.22g / L of simulated wastewater containing sodium acrylate concentrated to 124g / L of concentrate. Under optimized conditions, the use of butyl acrylate electrodialysis concentrate actual wastewater, wastewater desalination actual rate 99.7% , COD removal efficiency of 90%. Organic acid salt concentration may be 5.74% (50.66g / L sodium acrylate , 6.7g / L of methyl benzene sulfonate ) stock solution concentrated to 15.2% in the organic acid salt ( sodium acrylate of 137 g / L , methyl benzene sulfonate was 15.27 g / L) or more concentrated solution , thereby facilitating the subsequent utilization .
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