Bucharest , 22, Leshchenko, P. Linfield, W. Brady, C. Kwon, D. Park, Y. Holmberg, K. Mange, H. Oil Technol. India, 11, 73 Vaidya, S. Berger, R. Jach, K. Stage, H. Haradsson, G. Zilch, K. Luddy, F. Haupt, D. Leikham, J. Griffin, W. Swisher, R. Huddleston, R. Gledhill, W. Schoberl, P. Brooks, R. Patent 3,,, June 21, Patent 3,,, July 5, Ballestra, M.
Patent 3,,, April 27, Lantini, A. Patent 3,,, January 6, Hennig, H. Patent 2,,, August 6, Logan, R. Patent 3,,, June 8, Patent 4,,, September 12, Patent 4,,, January 22, Schick, M.
Bluestein, B. Lomax, E. Swartz, A. Richmond, J. Sorgenfrei, M. Findley, W. Sittig, M. Review, No. In certain areas of highly developed countries where effluents from major centres of population can reach stagnant surface waters a rapid increase of eutrophication of these surface waters is observed.
Phosphates are being recognized as one of the essential nutrients contributing to the eutrophication and detergents are one of the many sources of phosphate discharged to the environment. This is now causing demands for reduction in or even banning of the use of phosphates in detergents. Major reserach projects and some practical approaches to meeting these demands are described. The potential environmental impact of removing phosphate from detergents remains, however, doubtful, as it has been demonstrated in Sweden that phosphate removal by sewage treatment is the most effective measure to control phosphate discharges.
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