| 摘要 |
<p>A foam separation step is used in fermentation methods and processes. In one aspect, a method comprises seasonally engaging and disengaging a foam separation device amongst alternating ones of a plurality of batch fermentors in accordance with a logistically predetermined cycle whereby the foam separating device is operably engaged to alternating ones of the fermentors for respective periods corresponding to transient periods of over-foam production in each such fermentor, and wherein fermentations are initiated in each of respective ones of the fermentors such that respective transient periods of over-foam production therein are mutually non-concurrent. In another aspect, a foam separation and treatment process comprising drawing over-foam production from a fermentor, breaking the foam to provide separable gas and liquid streams, and treating the liquid and returning the treated liquid to the fermentor. The foam is preferably broken in a mechanical foam separation device, and an adsorbent is used to collect foam-concentrated materials that are entrained in the liquid portion of the foam.</p> |
