Theoretical and experimental investigation of time-varying properties in the coagulation of kaolinite containing wastewater by gypsum

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• 作者：Huaigang Cheng^a ; ^{chenghg@sxu.edu.cn} ; Yunyun Zhang^a ; Xin Wang^a ; Fangqin Cheng^a ; ^{cfangqin@sxu.edu.cn} ; Jing Han^a ; Jing Zhao^b ; Nan Wang^a ; Yang Sun^a
• 关键词：Gypsum ; Kaolinite ; DLVO model ; Ostwald ripening ; Coagulation ; Time-varying property
• 刊名：Journal of the Taiwan Institute of Chemical Engineers
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：71
• 期：Complete
• 页码：253-259
• 全文大小：1733 K
• 卷排序：71

文摘

Time-varying properties of gypsum have remarkable effect on wastewater coagulation. Ripening is a mechanism for affecting the dispersion of gypsum/kaolinite particles. Ostwald ripening equations were embedded into the extended DLVO model. Four stages of potential variation happen in the ripening and coagulation process.