| 糠醛废水综合治理技术 |
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| 引用本文： | 张和,赵增国,周立.糠醛废水综合治理技术[J].石油化工,1998(7). |
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| 作者姓名： | 张和 赵增国 周立 |
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| 作者单位： | 天津师范大学化学系，天津泰达集团 |
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| 摘 要： | 开发了电渗析处理糠醛废水回收乙酸的新方法。糠醛废水中含１％～２．５％的乙酸，通过电渗析分离，可回收浓度为２０％左右的乙酸，外排废水中含乙酸＜０．０２％，达到安全排放或回收利用的目的。粗乙酸经萃取、精馏制得工业一级乙酸。此方法已工业应用。
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| 关 键 词： | 糠醛废水 膜分离 电渗析 乙酸 回收 |
Comprehensive Treatment of Furfural Wastewater |
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| Abstract: | o eliminate pollution and control water quality,a new method of recovering acetic acid from furfural wastewater containing 1%～2.5% acetic acid by electrodialysis has been developed.In the electrodialysis operation, concentration of recovered acetic acid reaches about 20%, and disposed wastewater containing <002% acetic acid can be drained safely or reused.Furthermore,industrial first class acetic acid has been produced by means of extraction and distillation.This technology of electrodialysis extraction distillation for the comprehensive treatment of furfural wastewater has been used in industry. |
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| Keywords: | furfural wastewater membrane separation electrodialysis acetic acid recovery |
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