Volatile organic compound emission from diffused aeration systems: Experiment and modeling
- Tatung Inst. of Tech., Taipei (Taiwan, Province of China). Dept. of Chemical Engineering
A series of batch volatile organic compounds (VOC) emission tests were performed in a 500-L tank equipped with coarse-bubble diffusers at 0.82--3.29 m{sup 3}/h diffused air flow rate and 289.2--305.6 K water temperature. The unsteady-state dissolved concentrations of p-xylene and tetrachloroethylene were measured during the tests and compared with the results predicted by both the American Society of Civil Engineers (ASCE)-based model and the two-zone model. The VOC emission rate decreased with increasing air flow rate and water temperature. The results also confirmed that the two-zone model could give a better prediction of the VOC emission rates while the ASCE-based model underestimated the VOC emissions rates.
- OSTI ID:
- 352678
- Journal Information:
- Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 5 Vol. 38; ISSN IECRED; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
Similar Records
Volatile organic compound emission rate from diffused aeration systems. 1: Mass transfer modeling
Soil clean up by in-situ aeration. IX. Diffusion constants of volatile organics and removal of underlying liquid