MICROBIOLOGICAL TREATMENT OF WASTE LIQUID CONTAINING TETRAALKYLAMMONIUM SALT OR/AND AMINES HAVING METHYL GROUP

摘要

PURPOSE:To effectively perform the purification of waste water by decomposing amines, by adding Nocardia.SB-S-255 to activated sludge in which nitriding bacteria were propagated to perform the symbiotic propagation of both bacteria. CONSTITUTION:In decomposing tetraalkylammonium salt or trimethylamine, Nocardia.SB-S-255 (FERM P-8471) or a variant thereof is added to activated sludge in which nitriding bacteria were propagated to perform symbiotic propagation. In order to propagate nitriding bacteria present in activated sludge, ammonia or ammonium salt is added to the activated sludge. Further, a liquid medium suitable for the growth of Nocardia.SB-S-255 is put in a culture vessel and sterilized while the sterilized medium is inoculated with seed bacteria to perform aerobic culture. By this method, purification can be performed effectively and inexpensively.