A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microbial Degradation of Phenol in a Modified Three‐Stage Airlift Packing‐Bed Reactor
Phenol degradation was carried out by using a modified three‐stage airlift packing‐bed bioreactor. A laboratory‐scale airlift packing‐bed reactor, with hydrodynamic flexible packing material in the three‐stage bioreactor, was constructed and operated for phenol removal from synthetic wastewater. The airlift packing‐bed reactor successfully degraded phenol and lowered the chemical oxygen demand (COD) of wastewater. High COD removal was observed, and much lower sludge effluent was obtained in this investigation. This airlift bioreactor showed a superior hydrodynamics performance and broad operating conditions for phenolic material removal. Different operating modes were discussed to obtain the optimal condition for phenol degradation (i.e., hydraulic retention time [HRT] and gas flowrate of airlift). The HRT and feed phenol concentration of wastewater dominated the removal efficiency of phenol and COD. In this bioreactor, surface loading up to 2.84 g phenol/m2·d, almost 100% phenol removal, and over 90% COD removal was achieved. The lower operating cost combined with higher phenol‐removal efficiency and a low sludge effluent concentration can be achieved by using this reactor for phenol wastewater treatment.
Microbial Degradation of Phenol in a Modified Three‐Stage Airlift Packing‐Bed Reactor
Phenol degradation was carried out by using a modified three‐stage airlift packing‐bed bioreactor. A laboratory‐scale airlift packing‐bed reactor, with hydrodynamic flexible packing material in the three‐stage bioreactor, was constructed and operated for phenol removal from synthetic wastewater. The airlift packing‐bed reactor successfully degraded phenol and lowered the chemical oxygen demand (COD) of wastewater. High COD removal was observed, and much lower sludge effluent was obtained in this investigation. This airlift bioreactor showed a superior hydrodynamics performance and broad operating conditions for phenolic material removal. Different operating modes were discussed to obtain the optimal condition for phenol degradation (i.e., hydraulic retention time [HRT] and gas flowrate of airlift). The HRT and feed phenol concentration of wastewater dominated the removal efficiency of phenol and COD. In this bioreactor, surface loading up to 2.84 g phenol/m2·d, almost 100% phenol removal, and over 90% COD removal was achieved. The lower operating cost combined with higher phenol‐removal efficiency and a low sludge effluent concentration can be achieved by using this reactor for phenol wastewater treatment.
Microbial Degradation of Phenol in a Modified Three‐Stage Airlift Packing‐Bed Reactor
Huang, Cheng‐Hsien (author) / Liou, Rey‐May (author) / Chen, Shih‐Hsiung (author) / Hung, Mu‐Ya (author) / Lai, Cheng‐Lee (author) / Lai, Juin‐Yih (author)
Water Environment Research ; 82 ; 249-258
2010-03-01
10 pages
Article (Journal)
Electronic Resource
English
Photocatalytic Degradation of Nonionic Surfactants with Immobilized TiO2 in an Airlift Reactor
| Online Contents | 2004
Gas Transfer inside a Deep Airlift Reactor
| British Library Conference Proceedings | 2008
Simulation of a high recirculation airlift reactor for steady-state operation
| British Library Conference Proceedings | 1996