Abstract: By utilizing Corynebacterium sp. N according to the present invention, massive amounts of the waste fluid containing high concentration ethanolamines can effectively be treated without causing an environmental pollution. According to the present invention, it is possible to treat the waste fluid containing ethanolamines in a small-scale manner. The apparatus for treating the waste fluid according to the present invention can readily be installed, and the initial and running costs such as a maintenance of the apparatus are inexpensive.

Abstract: The present invention provides an aqueous mold-releasing agent which exhibits an excellent mold-releasing property with a small applied amount thereof without causing roughened surfaces of molded articles. Said agent comprises at least one of the fluorine-containing sulfonates in combination with a wax and/or a silicone oil, said sulfonates being represented by the following formula (I):(XSO.sub.3).sub.l M (I), wherein X is any one of the following fluorine-containing groups: ##STR1## and C.sub.m F.sub.2m+1 (CH.sub.2).sub.n -(n:0-2, m:1-12), M is an alkali metal, an alkaline earth metal, zinc, an alkylamine, an alkanolamine or ammonium, and l is 1 or 2.