On the performance of Ti/SnO2 and Ti/PbO2 anodes in electrochemical degradation of 2-chlorophenol for wastewater treatment

被引:396
作者
Polcaro, AM [1 ]
Palmas, S [1 ]
Renoldi, F [1 ]
Mascia, M [1 ]
机构
[1] Univ Cagliari, Dipartimento Ingn Chim & Mat, I-09123 Cagliari, Italy
关键词
2-chlorophenol; Ti/PbO2; Ti/SnO2; electrochemical oxidation;
D O I
10.1023/A:1003411906212
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Electrochemical oxidation of 2-chlorophenol was studied at Ti/PbO2 and Ti/SnO2 anodes. The performance of the electrodes was evaluated in terms of faradaic yield and fraction of toxic intermediates removed during the electrolysis. Results showed that, although similar average faradaic yields were obtained using Ti/PbO2 or Ti/SnO2 anodes, the latter material is preferred because of its ;better ability to oxidise toxic compounds. An effective electrochemical treatment (eta(F) congruent to 50%) may be accomplished, in which electrolysis at Ti/SnO2 can be stopped when, in spite of a relatively high COD, only a small amount of easily biodegradable oxalic acid is present in the effluent.
引用
收藏
页码:147 / 151
页数:5
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