Biblio

G. G. C., “Development and evaluation of multistage filtration plants : an innovative, robust and efficient water treatment technology”. Centre for Environmental Health Engineering (CEHE), Guildford, UK, p. CD-ROM : 146 MB, 1999.

G. G. C., J. M., L., and Visscher, J. T., Filtracion en multiples etapas : tecnologia innovativa para el tratamiento de agua, vol. no. 34-S. Cali, Colombia: CINARA, 1999, p. 197 p. : 68 fig., 60 tab.

J. T. Visscher, J. M., L., and G. C., G., Multi-stage filtration : an innovative water treatment technology, vol. no. 34-E. The Hague, The Netherlands: IRC, 1998, p. xiii, 165 p. : 68 fig., 60 tab.

J. T. Visscher, J. M., L., G. C., G., and Ochoa, A. E., “Comparison of horizontal and upflow roughing filtration”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 341-348 : 2 fig., 6 tab.

J. T. Visscher, J. M., L., and G. C., G., “Performance evaluation of dynamic roughing filtration”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 349-358 : 5 fig., 3 tab.

J. T. Visscher, E. R., Q., G. C., G., and Wildeboer, N., “Rural water supply in Latin America”, in New world water 1996, 1995, pp. P. 59-61 : 1 fig., 1 photogr.

B. J. Lloyd, Visscher, J. T., and G. C., G., “Overcoming water quality limitations with the multi-barrier concept : a case study from Colombia”, in Slow sand filtration : an international compilation of recent scientific and operational developments, 1994, pp. P. 47-60: fig., 3 tab.

J. E. M. Smet, Visscher, J. T., and G. C., G., “Slow sand filter design and construction : learning from experience”, in Slow sand filtration : an international compilation of recent scientific and operational developments, 1994, pp. P. 28-37, 306: 4 fig., 2 tab.

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.

B. J. Lloyd, Visscher, J. T., and G. C., G., “Multi-stage surface water treatment for community water supply in Colombia”, Waterlines, an international journal of water, sanitation and waste, pp. p. 26-29 : 3 fig., 3 tab., photogr., 1992.

M. Pardon, Wegelin, M., and G. C., G., “Prefilters, handpumps and small tanks : key issues for viable rural water supplies?”, Water supply : the review journal of the International Water Supply Association, pp. p. SS18.1-SS18.8: fig., tab., 1989.

J. T. Visscher, E. R., Q., J. M., L., A. C., G., R. Munoz, D., V., C. H. Cruz, and G. C., G., “Proyecto integrado de investigacion y demostracion en filtracion lenta en arena : informe final, version resumida”. Centro Inter-Regional de Abastecimiento y Remocion de Agua, Cali, Colombia, p. 48 p.: fig., tab., 1989.

J. T. Visscher and G. C., G., “Filtracion lenta en arena y pretratamiento : tecnologia para potabilizacion de agua”, in Seminario internacional sobre technologia simplificada para potabilizacion del agua : agosto 17 al 21 de 1987 : memorias, The Hague, The Netherlands, 1987, p. 55 p.: fig., tab.