期刊名称：Case Studies in Chemical and Environmental Engineering
印刷版ISSN：2666-0164
出版年度：2020
卷号：1
页码：1-6
DOI：10.1016/j.cscee.2020.100003
语种：English
出版社：Elsevier
摘要：AbstractPollution prevention methods were applied at an optics manufacturer in an effort to improve recovery of a valuable polishing component, cerium oxide (ceria), 77% of which was lost to dragout and sewer discharge. Centrifugation and microfiltratiion were evaluated to develop a process that would increase recovery of used ceria, which would then be sent back to the ceria supplier for reclamation and reuse. Full-scale implementation included a high-speed centrifuge that operates continuously with a microfiltration system through recirculation in a single process tank. Sydor Optics has improved ceria recovery from 23% to 48%, saving thousands of dollars annually.
