PROCESS FOR THE DEGRADATION OF COMPOUNDS CONTAINING METHYL GROUPS IN AQUEOUS SOLUTIONS USING MICROORGANISMS OF THE GENUS PSEUDOMONAS

摘要

1. Claims for Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE Facultatively methylotrophic, DMF-degrading microorganisms of the genus Pseudomonas selected from the group of the following strains : DMF 3/3 (NRRL-B-15358), DMF 3/4 (NRRL-B-15359), DMF 3/5 (NRRL-B-15360), DMF 3/6 (NRRL-B-15361), DMF 3/11 (NRRL-B-15362), DMF 3/12 (NRRL-B-15363), DMF 4/4 (NRRL-B-15364), DMF 5/3 (NRRL-B-15365), DMF 5/5 (NRRL-B-15366), DMF 5/7 (NRRL-B-15367), DMF 5/8 (NRRL-B-15368), DMF 5/9 (NRRL-B-15369) and DMF 5/10 (NRRL-B-15370), the mixed culture DMF/HW 1-5 (NRRL-B-15371), a mutant derived from these microorganisms, or mixed cultures thereof, for the purification of industrial waste waters, characterised in that, in aqueous solution, they are able to degrade dimethylformamide, formamide, methyl- or ethyl-formamide, acetamide, methanol, ethanol, saccharides, lower alkanoates, methyl-, ethyl-, dimethyl- or trimethylammonium halides, dimethyl phosphite, trimethyl phosphite, hydantoin, creatine, creatinine, barbituric acid, choline, betaine, sarcosine, dimethylglycine, glycine, glyoxylic acid, N-formylamino acids, N-acetylamino acids, acetonitrile or isobutyronitrile or mixtures of these compounds, with an increase in the biomass. 1. Claims for Contracting State : AT A process for the microbiological purification of aqueous solutions containing dimethylformamide, formamide, methyl- or ethyl-formamide, acetamide, methanol, ethanol, saccharides, lower alkanoates, methyl-, ethyl-, dimethyl- or trimethyl-ammonium halides, dimethyl phosphite, trimethyl phosphite, hydantoin, creatine, creatinine, barbituric acid, choline, betaine, sarcosine, dimethylglycine, glycine, glyoxylic acid, N-formylamino acids, N-acetylamino acids, acetonitrile or isobutyronitrile or mixtures of these compounds, characterised in that there is cultured in such an aqueous solution a microorganism of the genus Pseudomonas selected from the group of the following strains : DMF 3/3 (NRRL-B-15358), DMF 3/4 (NRRL-B-15359), DMF 3/5 (NRRL-B-15360), DMF 3/6 (NRRL-B-15361), DMF 3/11 (NRRL-B-15362), DMF 3/12 (NRRL-B-15363), DMF 4/4 (NRRL-B-15364), DMF 5/3 (NRRL-B-15365), DMF 5/5 (NRRL-B-15366), DMF 5/7 (NRRL-B-15367), DMF 5/8 (NRRL-B-15368), DMF 5/9 (NRRL-B-15369) and DMF 5/10 (NRRL-B-15370), or a mutant derived from these microorganisms, or mixed cultures thereof, in the presence of essential inorganic salts and optionally a nitrogen source, at from approximately 20 degrees C to approximately 40 degrees C and at a pH of from approximately 4 to approximately 7.5, under aerobic conditions, and, if desired, the resulting biomass is isolated.