HKUST Institutional Repository >
Chemical and Biomolecular Engineering >
CBME Doctoral Theses >
Please use this identifier to cite or link to this item:
|Title: ||Wastewater treatment by catalytic wet air oxidation in a continuous pilot-scale trickle bed reactor|
|Authors: ||Wu, Qiang|
|Issue Date: ||2004 |
|Abstract: ||This work is an in-depth study on the application of a catalytic wet air oxidation (CWAO) process for continuous wastewater treatment.
To this end, first various catalysts were prepared and their feasibility for phenol degradation was evaluated in a batch slurry reactor. Activated carbon-based copper (Cu/AC) was found to be the best catalyst. A fully instrumented pilot scale trickle bed reactor (TBR) was then used as a reactor in which oxygen and aqueous phenol were fed co-currently over the Cu/AC catalyst.
This TBR proved to be able to detoxify effectively wastewater containing phenol. A systematic study was conducted to investigate the mass transfer and reaction processes in the TBR. Both gas-to-liquid and liquid-to-solid mass transfer-related parameters were measured and correlated. The reaction kinetics for phenol degradation by both copper salts (homogeneous catalyst) and Cu/AC (heterogeneous catalyst) were examined. Kinetics models for representing the rate data were established and validated.
On the basis of the above results, a comprehensive mathematical model for the TBR was developed. The model was found to be capable of predicting the phenol conversion over a range of operational conditions.|
|Description: ||Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2004|
xx, 183 leaves : ill. ; 30 cm
HKUST Call Number: Thesis CENG 2004 Wu
|Appears in Collections:||CBME Doctoral Theses|
Files in This Item:
All items in this Repository are protected by copyright, with all rights reserved.