REACTOR WITH WORKING AND SECONDARY ELECTRODES AND POLARITY REVERSAL MEANS FOR TREATING WASTE WATER

摘要

An electrode is provided for use in treating waste water containing metallic species. The electrode permits plating in the cathodic mode and stripping in the anodic mode. The electrode includes a material, preferably titanium, which exhibits a sudden change in electrical characteristics after stripping and this change can be used to sense the end of stripping thereby minimizing attack on the electrode. A reactor and method are also disclosed.