| 综合治理糠醛废水的研究 |
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| 引用本文： | 陈玉莲,周广浚,张和.综合治理糠醛废水的研究[J].环境科学,1992,13(5):46-49,57. |
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| 作者姓名： | 陈玉莲 周广浚 张和 |
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| 作者单位： | 太原工业大学化工系，太原工业大学化工系，太原工业大学化工系 太原 030024，太原 030024，太原 030024 |
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| 摘 要： | 糠醛塔底废水含1—2.5％的乙酸,将该废水通过90—120对膜组装的400×1600mm电渗析分离,可回收浓度为18—20％的乙酸,再经萃取、精馏得工业一级乙酸。治理后的外排水含酸量小于0.02％,可安全排放或回用。治理糠醛废水回收乙酸的电渗析-萃取-精馏工艺已实现了工业化。
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| 关 键 词： | 废水 乙酸 综合治理 呋喃甲醛 膜法 |
| 收稿时间： | 1991/12/5 0:00:00 |
Study on Comprehensive Thectment of Waste Water from furfural Production |
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| Chen Yulian.Study on Comprehensive Thectment of Waste Water from furfural Production[J].Chinese Journal of Environmental Science,1992,13(5):46-49,57. |
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| Authors: | Chen Yulian |
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| Institution: | Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024;Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024;Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024 |
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| Abstract: | During the process of furfural production, waste liquor containiog 1-2.5% acetic acid is discharged. Not only is acetic acid wasted but also the Surrounding environment is polluted. In the operation described in this paper, the waste water passes through a 400×1600 mm electrodialyzer equipped with 90-120 pairs of membrane modules, recovering acetic acid with concentrations of 18-20%. The treated waste water contains only 0.02% of acetic acid, and could be safely discharged or reused. Furthermore, aa industrial graded acetic acid with purity of 99% could be produced by means of extraction-distillation of the recovered acetic acid solution. Industrialization of the comprehensive technology of electrodialysis-extraction-distillation for the treatment of the waste water from furfural production mentioned here has been achieved. |
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| Keywords: | waste watert reatment membrane separa tion> electrodialysis acetic acid recovery |
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