WO9702217-A1  DATABASE WPI Section Ch, Week 8316 Derwent Publications Ltd., London, GB; Class D16, AN 83-38380k XP002015044 & JP,A,58 043 782 (NAGASE SEIKAGGAKU KO) , 14 March 1983 cited in the application;  See also references of EP 0836584A1;  DATABASE WPI Section Ch, Week 8316 Derwent Publications Ltd., London, GB; Class D16, AN 83-38380k XP002015044&JP,A,58 043 782 (NAGASE SEIKAGGAKU KO) , 14 March 1983 cited in the applicationNL1000736-C2  DATABASE WPI Section Ch, Week 8316 Derwent Publications Ltd., London, GB; Class D16, AN 83-38380k & JP,A,58 043 782 (NAGASE SEIKAGGAKU KO) , 14 Maart 1983;  DATABASE WPI Section Ch, Week 8316 Derwent Publications Ltd., London, GB; Class D16, AN 83-38380k&JP,A,58 043 782 (NAGASE SEIKAGGAKU KO) , 14 Maart 1983EP836584-B1  DATABASE WPI Section Ch, Week 8316 Derwent Publications Ltd., London, GB; Class D16, AN 83-38380k XP002015044 & JP,A,58 043 782 (NAGASE SEIKAGGAKU KO) , 14 March 1983 cited in the applicationUS5965024-A  Abstract, JP 06335384, dated Dec. 6, 1994.;  Abstract, JP06296990, dated Oct. 25, 1994.;  Abstract, JP58043782, dated Mar. 14, 1983.;  Abstract, SU1275008, dated Dec. 7, 1986.;  Abstract, SU1784591, dated Dec. 30, 1992.;  Applied and Environmental Microbiology, B. Nortemann, "Total Degradation of EDTA by Mixed Cultures and A Bacterial Isolate", Feb. 1992, p. 671-676, vol. 58, No. 2.;  International Search Report, date Oct. 10, 1996.;  Nikolaus Gschwind, "Biodegradation of EDTA in a model waste water", pp. 1-7 (translation of German article GWF Gas-Wasserfach: Wasser/Abwasser vol. 133, 10 (1992) 546-549.;  Publikatieblad van de Europese Gemeenschappen, "Biologische Afbraak", dated May 30, 1988., No. L 133/123-127.;  Tappi Journal, Reiio Saunamaki, "Treatability of wastewaters from totally chlorine-free bleaching", vol. 78, No. 8, (1995), pp. 185-192.;  Water Environmental Research, S.G. Pavlostathis and Morrison, "Aerobic biodegradaiton potential of photoprocessing wastewaters", (1994), 211-219, vol. 66, No. 3.EP836584-B2  Ardern & Lockett, J.Soc. Chem. Ind., vol. 33, p. 524 (1914);  Belly et al, Appl. Microbiol.,29:787-794(1975);  Biodegradation of EDTA by activated sludge and its effect on activated sludge, by Yonezawa et al, (1977),6(4),15-24;  Cech and Chudoba, Acta Hydrochem., Hydrobiol., vol. 16, no. 3, p. 313(1988);  DATABASE WPI Section Ch, Week 8316 Derwent Publications Ltd., London, GB; Class D16, AN 83-38380k XP002015044 & JP,A,58 043 782 (NAGASE SEIKAGGAKU KO) , 14 March 1983 cited in the application;  The book operation of municipal wastewater treatment plants, vol. 3, fifth edition (1996), page 1256, and vol. 2, page 590;  The book wastewater engineering: Treatment, Disposal and Reuse, Third Edition (1991), whole document, and in particular page 85:, Fig. 8-32, page 697, table 11-13 and page 698;  The book wastewater treatment: biological and chemical processes (1995), pages 113, 117 and 129;  The publication nitrification & denitrification facilities, (1972), whole document and in particular page 1; figures 4 and 11