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Bio-Oxidation of Airborne Volatile Organic Compounds in an Activated Sludge Aeration Tank
| Content Provider | Scilit |
|---|---|
| Author | Chou, Ming-Shean Chang, Hsiao-Yu |
| Copyright Year | 2005 |
| Description | Journal: Journal of the Air & Waste Management Association An activated sludge aeration tank (40 × 40 × 300 cm, width × length × height) with a set of 2-mm orifice air spargers was used to treat gas-borne volatile organic compounds (VOCs; toluene, p-xylene, and dichloromethane) in air streams. The effects of liquid depth (Z), aeration intensity (G/A), the overall mass-transfer rate of oxygen in clean water (K$ _{L}$ a$ _{O2}$ ), the Henry's law constant of the tested VOC (H), and the influent gaseous VOC concentration (C$ _{0}$) on the efficiency of removal of VOCs were examined and compared with a literature-cited model. Results show that the measured VOC removal efficiencies and those predicted by the model were comparable at a G/A of 3.75–11.25 $m^{3}/m^{2}$·hr and C$ _{0}$ of ∼1000–6000 $mg/m^{3}$. Experimental data also indicated that the designed gas treatment reactor with K$ _{L}$ a$ _{O2}$ = 5–15 $hr^{−1}$ could achieve >85% removal of VOCs with H = 0.24–0.25 at an aerated liquid depth of 1 m and >95% removal of dichloromethane with H = 0.13 at a 1-m liquid depth. |
| Related Links | http://www.tandfonline.com/doi/pdf/10.1080/10473289.2005.10464645?needAccess=true |
| Ending Page | 611 |
| Page Count | 8 |
| Starting Page | 604 |
| ISSN | 10962247 |
| e-ISSN | 21622906 |
| DOI | 10.1080/10473289.2005.10464645 |
| Journal | Journal of the Air & Waste Management Association |
| Issue Number | 5 |
| Volume Number | 55 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2005-05-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of the Air & Waste Management Association Water Science and Technology |
| Content Type | Text |
| Subject | Atmospheric Science Pollution Waste Management and Disposal Management, Monitoring, Policy and Law |
