Method and apparatus for the biological degradation of harmful substances in water

摘要

PCT No. PCT/DE95/01334 Sec. 371 Date May 28, 1997 Sec. 102(e) Date May 28, 1997 PCT Filed Sep. 27, 1995 PCT Pub. No. WO96/09987 PCT Pub. Date Apr. 4, 1996The process serves for treating water polluted with pollutants which can only be degraded with difficulty by purely biological means. The water is circulated through a reactor vessel arrangement (24) in which it is treated with ozone which causes a preliminary oxidation of the pollutants. The water passes into a vessel arrangement 8 containing an aerobic biological treatment which, owing to the preliminary oxidation of the pollutants, is able to degrade these further. The water is conducted in a main circuit I and a part-circuit II branched off therefrom.