Biblio

M. R. Collins, Cole, J. O., Westersund, C. M., and Paris, D. B., “Assessing roughing filtration design variables”, Water supply : the review journal of the International Water Supply Association, pp. p. SS 5.29 - 5.40: 9 fig., 11 tab., 1994.

G. G. C., “Tecnologia innovativa para reduccion de contaminantes biologicos y precursores de trihalometanos”, Gaceta ambiental, pp. p. 5-13: 8 fig., 3 tab., 1994.

J. T. Visscher, G. C., G., and Fernandez, J., “Comparative study of different pre-treatment alternatives”, Aqua : journal of water supply research and technology, pp. p. 337-346: 7 fig., 5 tab., 1993.

G. G. C., “Innovative technology for reduction in biological contaminants and trihalomethane precursors”, in Safety of water disinfection : balancing chemical and microbial risks, 1993, pp. P. 415-428: 10 fig., 3 tab.

J. T. Visscher, Beron, F., G. C., G., and Fernandez, J., “Pre-treatment alternatives for drinking water supply systems : selection, design, operation and maintenance”, vol. no. 22. IRC, The Hague, The Netherlands, p. viii, 101 p.: 40 fig., 19 tab., 1993.

T. S. A. Mbwette, “Final report on the rehabilitation, operation and treatment performance of the Mpira/Balaka main water treatment works for the Department of Water, Ministry of Works, Republic of Malawi”. Malawi, Ministry of Works, Water Department, Lilongwe, Malawi, p. v, 37 p.: fig., tab., drwngs, 1992.

C. O. C. I. N. A. R. A. - Cali and IRC International Water and Sanitation Centre, The Hague, NL, “Proyecto integrado de investigacion y demostracion de metodos de pretratemiento para sistemas de abastecimiento de agua : informe final : desarrollo, logros y perspectivas”. IRC, The Hague, The Netherlands, p. xxix, 233 p.: 52 fig., 47 tab., 1992.

J. E. M. Smet and Visscher, J. T., “Pre-treatment methods for community water supply : an overview of techniques and present experience”. IRC, The Hague, The Netherlands, p. 174 p.: fig., tab., 1989.

M. Wegelin, “Roughing gravel filters for suspended solids removal”, in Slow sand filtration : recent developments in water treatment technology, 1988, pp. P. 103-122: fig., tab.