PROCESS AND DEVICE FOR DESTROYING FREE AND COMPLEX CYANIDES, AOX, MINERAL OIL, COMPLEXING AGENTS, CSB, NITRITE, CHROMATE, AND FOR SEPARATING METALS FROM WASTE WATERS

摘要

PCT No. PCT/EP93/01087 Sec. 371 Date Feb. 24, 1995 Sec. 102(e) Date Feb. 24, 1995 PCT Filed May 5, 1993 PCT Pub. No. WO93/22249 PCT Pub. Date Nov. 11, 1993Process for the decontamination of decontaminants in waste waters, wherein the waste water stream to be treated pass sequentially through following process steps, waste water treatment with hydrogen peroxide (H2O2), irradiating at the same time with UV light, treatment with a reducing agent such as sodium dithionite, precipitation of existing metal contaminants, optionally followed by a filtration and/or a treatment with a selective ion exchanger.