A combined photolytic-electrolytic system for the simultaneous recovery of copper and degradation of phenol or 4-chlorophenol in mixed solutions.
The effects of the presence of copper on the photooxidation of phenol and 4-chlorophenol and of the presence of the phenols on the recovery of copper by electrodeposition are studied in three systems: a photolytic cell in the presence and absence of TiO2 as a catalyst or H2O2 as an oxidant; an electrolytic cell and a combined photolytic-electrolytic system. The optimum system for the simultaneous removal of copper and destruction of the phenols which overcomes the effects of copper-phenol reactions is a combined system with concentrator electrode technology incorporated into the electrolytic cell. This combined system achieves >99% removal of copper and destruction of phenol or 4-chlorophenol in an 8 h period.
Chaudhary
Abdul J
AJ
Institute for the Environment, Brunel University, Kingston Lane, Uxbridge, Middlesex UB8 3PH, UK. abdul.chaudhary@brunel.ac.uk
Grimes
Susan M
SM
D002733:Chlorophenols / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004563:Electrochemistry; D004573:Electrolytes / Q000737:chemistry*; D019800:Phenol / Q000737:chemistry*; D010782:Photolysis; D018508:Water Purification / Q000379:methods
D002733:Chlorophenols; D004573:Electrolytes; D019800:Phenol; C029107:4-chlorophenol; D003300:Copper