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Chemcial Industry and Engineering 2023, Vol. 40 Issue (4) :137-143    DOI: 10.13353/j.issn.1004.9533.20210865
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Research on resource utilization technology of saline wastewater in antibiotic production
YANG Ting1, ZHU Xingchi1, GUO Xiaofu1,2, LI Fei1,2, LI Hong1,2,3, WANG Jing1,2,3, JI Zhiyong1,2,3
1. School of Chemical Engineering, Hebei University of Technology, Engineering Research Center for Chemical Technology of the Efficient Utilization of Seawater Resources, Tianjin 300130, China;
2. Collaborative Innovation Center of Hebei Modern Marine Chemical Technology, Tianjin 300130, China;
3. School of Chemical Engineering, Hebei University of Technology, Chemical Energy Conservation Process Integration and Resource Utilization National-Local Joint Engineering Laboratory, Tianjin 300130, China

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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.
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YANG Ting
ZHU Xingchi
GUO Xiaofu
LI Fei
LI Hong
WANG Jing
JI Zhiyong
Keywordsantibiotic   high salinity wastewater   mechanical vapor recompression (MVR)   cooling crystallization   resource recovery     
Received 2022-02-19;
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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,V40(4): 137-143
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