![ChemEngineering | Free Full-Text | A Newly Developed Empirical Predictive Model for the Dispersed Phase (DP) Holdup in Rotating Disc Contactors ChemEngineering | Free Full-Text | A Newly Developed Empirical Predictive Model for the Dispersed Phase (DP) Holdup in Rotating Disc Contactors](https://www.mdpi.com/ChemEngineering/ChemEngineering-05-00079/article_deploy/html/images/ChemEngineering-05-00079-g006.png)
ChemEngineering | Free Full-Text | A Newly Developed Empirical Predictive Model for the Dispersed Phase (DP) Holdup in Rotating Disc Contactors
![SOLVED: Air samples show an industrial atmosphere to contain 0.01% methyl styrene and 0.03% methyl acrylate during the morning half of the shift and 0.017% and 0.02%, respectively, during the afternoon half. SOLVED: Air samples show an industrial atmosphere to contain 0.01% methyl styrene and 0.03% methyl acrylate during the morning half of the shift and 0.017% and 0.02%, respectively, during the afternoon half.](https://cdn.numerade.com/project-universal/previews/59bec12a-6fac-445a-b541-a476ea82d1b3.gif)
SOLVED: Air samples show an industrial atmosphere to contain 0.01% methyl styrene and 0.03% methyl acrylate during the morning half of the shift and 0.017% and 0.02%, respectively, during the afternoon half.
![SOLVED: During the first 4 hours of the workday, the acetone concentration is 300 parts per million (ppm). Then, for the next hour, it spikes to 2000 ppm, and for the remaining SOLVED: During the first 4 hours of the workday, the acetone concentration is 300 parts per million (ppm). Then, for the next hour, it spikes to 2000 ppm, and for the remaining](https://cdn.numerade.com/project-universal/previews/131b39d3-2d19-4791-85f6-91bf6b5fa8ed.gif)