The method of preparation in the presence of at least one antifoam in the wastewater after the column processing section of isophorone

The present invention relates to post-processing section in the process for preparing the waste water column in the case of isophorone in the presence of at least one antifoam, in particular, the present invention relates to waste water in the presence of at least one column in the treated section preparation of isophorone (3,5,5? trimethyl? 2? cyclohexene? 1?-one) in the case of defoamer method.