| Autor: |
Argaman, Yerachmiel, Musterman, Jack L., Argaman, Yerachmiel, Musterman, Jack L. |
| Zdroj: |
Journal of Environmental Engineering; May 1994, Vol. 120 Issue: 3 p573-585, 13p |
| Abstrakt: |
Capture and recycle of offgas from a completemix activatedsludge reactor was evaluated as an alternative VOCcontrol strategy to reduce the volume and cost of offgas treatment. A mathematical model was developed to predict the fraction of individual influent VOC compounds that are biodegraded, stripped, and discharged in the liquid and gaseous effluents of an activatedsludge reactor with offgas recycle. The model utilizes fundamental physical and biokinetic growth and substrateremoval constants for each VOC. The results indicated that for a biodegradable VOC offgas recycle increased biodegradation and reduced stripping of the compound. The fate of a VOC depended on the relative magnitude of HC, μMAX, and KSrather than their absolute values. The fate of VOCs having certain combinations of these parameters can be controlled by process and operational parameters of the activated sludge and offgas recycle system. These benefits are obtained without additional energy utilization. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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