Phenolic compounds removal by wet air oxidation based processes
Received date: 20 Jan 2017
Revised date: 13 Mar 2017
Accepted date: 13 Apr 2017
Published date: 15 Feb 2018
Copyright
Different reaction parameters are emphasized in the WAO process. Homogenous catalysts and heterogeneous catalysts are extensively discussed. Mechanism and kinetic of WAO are elaborated. Three kinds of the reactors for CWAO are compared. Integration of CWAO with biological degradation is discussed.
Wet air oxidation (WAO) and catalytic wet air oxidation (CWAO) are efficient processes to degrade organic pollutants in water. In this paper, we especially reviewed the WAO and CWAO processes for phenolic compounds degradation. It provides a comprehensive introduction to the CWAO processes that could be beneficial to the scientists entering this field of research. The influence of different reaction parameters, such as temperature, oxygen pressure, pH, stirring speed are analyzed in detail; Homogenous catalysts and heterogeneous catalysts including carbon materials, transitional metal oxides and noble metals are extensively discussed, among which Cu based catalysts and Ru catalysts were shown to be the most active. Three different kinds of the reactor implemented for the CWAO (autoclave, packed bed and membrane reactors) are illustrated and compared. To enhance the degradation efficiency and reduce the cost of the CWAO process, biological degradation can be combined to develop an integrated technology.
Linbi Zhou , Hongbin Cao , Claude Descorme , Yongbing Xie . Phenolic compounds removal by wet air oxidation based processes[J]. Frontiers of Environmental Science & Engineering, 2018 , 12(1) : 1 . DOI: 10.1007/s11783-017-0970-2
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