Wet oxidative degradation of organic substances - in effluents in which a redox potential is attained by addn. of iron and phosphorus in trace quantities

摘要

In the parent patent, the wet oxidative degradation of org. impurities in effluents was described by oxidising at a redox potential of 300-600 mV (measured with a Pt electrode against a Ag/AgCl electrode), at 80-250 degrees C and 3-200 bars with O2(-contg. gases). The improvement in this application lies in adjusting the redox potential by adding 300-500 ppm Fe degrees, Fe++ and/or Fe+++ as well as 1-10 ppm (pref. 4-7 ppm) P (as PO4---).