抗生素生产中含盐废水的资源化利用技术研究

摘要抗生素生产过程中会产生大量以氯化钠和氯化钾为主的含盐废水,若直接排放,不仅会对环境产生污染或影响,还会造成资源的浪费。本研究以抗生素生产中含盐废水为处理对象,面向资源化利用,设计采用"机械式蒸汽再压缩技术(Mechanical vapor recompression,MVR)+冷却结晶"工艺,分离获取其中的氯化钠和氯化钾,重点考察不同温度下的分离效果及经济能耗。研究表明,在母液循环操作模式下,常压蒸发温度为90 ℃、蒸水量为(85.00±0.50)%、结晶温度为25 ℃时,氯化钠收率可达85.00%以上,氯化钠和氯化钾纯度可达国家标准中工业级产品要求。

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	杨婷
	朱兴驰
	郭小甫
	李非
	李洪
	汪婧
	纪志永

关键词：抗生素高盐废水机械式蒸汽再压缩技术(MVR) 冷却结晶资源化

Abstract： The manufacturing process of antibiotics would inevitably generate considerable salt-containing wastewater, whose major contents are sodium chloride and potassium chloride. This wastewater, if it is discharged directly, can lead to both environmental pollution and resources wastage. In this study, a process of "mechanical vapor recompression (MVR) + cooling crystallization" was adopted to treat the wastewater and obtain valuable salt like NaCl and KCl. The separation effect and economic energy consumption at different temperatures were mainly investigated. Under preferred process operating conditions of (85.00±0.50)% water evaporation at 90 ℃ atmospheric pressure and crystallization temperature 25 ℃, the yield of NaCl could reach more than 85.00%, and the quality of NaCl and KCl met the requirement of the corresponding national standard for industrial product.

Keywords： antibiotic high salinity wastewater mechanical vapor recompression (MVR) cooling crystallization resource recovery

Received 2022-02-19;

Fund:河北省重点研发计划项目(19274003D)。

Corresponding Authors: 李洪,教授级高级工程师,E-mail: bdlee@126.com;纪志永,教授,E-mail:jizhiyong@hebut.edu.cn。 Email: bdlee@126.com;jizhiyong@hebut.edu.cn

About author: 杨婷,(1997-),女,硕士研究生,现从事资源利用及环保方面的研究。

引用本文:

杨婷, 朱兴驰, 郭小甫, 李非, 李洪, 汪婧, 纪志永.抗生素生产中含盐废水的资源化利用技术研究[J]. 化学工业与工程, 2023,40(4): 137-143

YANG Ting, ZHU Xingchi, GUO Xiaofu, LI Fei, LI Hong, WANG Jing, JI Zhiyong.Research on resource utilization technology of saline wastewater in antibiotic production[J]. Chemcial Industry and Engineering, 2023,40(4): 137-143

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