DECOMPOSITION ELECTRODE FOR ORGANIC POLLUTED WATER, DECOMPOSING METHOD OF ORGANIC POLLUTED WATER USING SAME AND DECOMPOSING DEVICE OF ORGANIC POLLUTED WATER USING SAME

摘要

PROBLEM TO BE SOLVED: To obtain an electrode which can decompose org. substances at low electrolytic voltage that can not be completely ionized. which gives a large throughput for the consumed electric power, which makes neutralization of the treated water unnecessary, and which is excellently convenient without producing of scum or the like by covering the surface of an electrode substrate with a trapping material which traps nitrogen-contg. org. compds. ;SOLUTION: For example, a commercially available titanium plate in 10 mm10 mm size and 0.5 mm thickness is degreased with acetone, etched with a hot oxalic acid soln, cleaned with pure water and dried to prepare an electrode base body 1. Then a soln. prepared by dissolving tin chloride and antimony chloride by 100:1 weight ratio in ethanol is applied on the electrode base body 1, dried and baked at 550C for 10 min. This procedure is repeated to form an electrode coating 2 comprising doped tin oxide having 3m thickness. Then a trapping material 3 comprising platinum is formed by using a bath of sodium phosphate and ammonium phosphate containing platinic chloride to obtain the decomposition electrode for an org. polluted water.;COPYRIGHT: (C)1999,JPO