Biblio

G. M. Ochieng and Otieno, F. A. O., “Verification of Wegelin’s design criteria for horizontal flow roughing filters (HRFs) with alternative filter material”, Water SA, pp. p. 105-109 : 2 fig., 3 tab., 2006.

M. J. Ballestero Calderon and Julieth, M., “Analisis, modelacion y simulacion hidraulica de un filtro grueso dinamico como reactor no ideal”. Universidad del Valle, Facultad de Ingenieria, Cali, Colombia, p. 113 p. : fig., photogr., tab. , 1997.

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.

G. J. Alaerts, Buiteman, J. P., and Ahsan, T., “Direct horizontal-flow roughing filtration. Part I : optimisation of process parameters”, Aqua : journal of water supply research and technology, pp. p. 262-271 : 8 fig., 3 tab., 1996.

G. J. Alaerts, Buiteman, J. P., and Ahsan, T., “Direct horizontal-flow roughing filtration. Part II : performance, and operational guideline”, Aqua : journal of water supply research and technology, pp. p. 281-291 : 4 fig., 6 tab., 1996.

S. Mesfin, “Experiences with slow sand filtration in Ethiopia”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 379-387 : 3 fig.

J. P. Padmasiri, Fonseka, W. S. C. A., Jayalath, J. M. J. C., Kulasooriya, S. A., and Jayaweradena, B. P. A., “Horizontal roughing filter as pretreatment system for Algae Synedra”, Water supply : the review journal of the International Water Supply Association, pp. p. 201-204: 2 fig., 2 tab., 1995.

T. Ahsan, Process analysis and optimization of direct horizontal-flow roughing filtration. Rotterdam, The Netherlands: A.A. Balkema, 1995, p. x, 193 p.: fig., tab.

T. S. A. Mbwette, “A compact design of roughing and slow sand filtration units”, in New world water 1994, 1994, pp. P. 55-56, 58 : 3 fig., photogr.

H. Voyiagis, “Investigations into and development of a training guide and model to aid in the training of horizontal roughing filter caretakers”. Cranfield University at Silsoe, Bedford, UK, p. vi, 41 p. + annexes (ca. 50): drwng., fig., tab., 1994.

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.

L. J. M., “Performance evaluation of dynamic roughing filtration”, vol. no. 137. IHE (International Institute for Infrastructural, Hydraulic and Environmental Engineering), Delft, The Netherlands, p. vi, 83 p.: 30 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.

W. de Vet, “Drinkwatervoorziening Mision San Juan de la Costa, Osorno, Chili : verslag veldstage september tot en met december 1992”. Delft University of Technology, CICAT, Delft, The Netherlands, p. 41 p. + 3 loose techn.drwngs: fig., photogr., tab., 1993.

M. Boller, “Filter mechanisms in roughing filters”, Aqua : journal of water supply research and technology, pp. p. 174-185: 17 fig., 1 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.

K. J. Nath, “Proceedings of the workshop on sanitary protection and upgradation of traditional surface water sources for domestic consumption : a project sponsored by UNICEF, 17th to 18th August 1992, held at AIIH&PH Auditorium, Calcutta”. All India Institute of Hygiene and Public Health, Calcutta, India, p. 47 p.: fig., ill., map, photogr., 1993.

M. Wegelin and Schertenleib, R., “Roughing filters for water treatment”, IRCWD news, pp. p. 1-8: 7 fig., 1993.

C. Berkoh, “Slow sand filtration water treatment”, in Water, sanitation, environment and development : proceedings of the 19th WEDC conference, Accra, Ghana, 6-10 September 1993, 1993, pp. P. 93-95 : 5 tab.

M. Wegelin and Dorcoo, K., “Water treatment in northern Ghana”, in Water, sanitation, environment and development : proceedings of the 19th WEDC conference, Accra, Ghana, 6-10 September 1993, 1993, pp. P. 111-114 : 2 fig., 1 tab.

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.

C. H. Internatio Duebendorf, “Roughing filters for water treatment : workshop in Zurich / Switzerland, 25-27 June 1992 = Kiesfiltration in der Wasseraufbereitung : Arbeitstagung in Zuerich / Schweiz, 25 -27 Juni 1992”. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. ca. 250 p. : fig., tab., 1992.

S. Mesfin, “Constructing and operating treatment plants”, in Infrastructure, environment, water and people : proceedings of the 17th WEDC Conference, United Nations Centre for Human Settlement (Habitat), Nairobi, Kenya, 19-23 August 1991, 1991, pp. P. 139-142: 3 fig., 1 tab.