Biblio

C. C. Dorea, Clarke, B. A., and Bertrand, S., “Performance of a multi-stage filtration plant after its handover ”, Water policy : official journal of the World Water Council, pp. p. 559-570 : 8 fig. , 2004.

J. P. Rajapakse, “Pebble matrix filtration in Papua New Guinea”, Waterlines, an international journal of water, sanitation and waste, pp. p. 12-14 : 2 fig., 2003.

R. Shaw and Skinner, B., “Technical brief no. 59 : household water treatment 2”, Waterlines, an international journal of water, sanitation and waste, pp. p. 15-18 : 5 fig., 2003.

L. J. M., J. M., F., A. T., S., N. S., M., F. C., B., and Restrepo, M., “Uso de fibras naturales y sinteticas en filtracion lenta en Colombia : una experiencia en ambientes tropicales”. CINARA, Cali, Colombia, p. 40 p. : 10 fig., 9 photogr., 7 tab. ; CD-ROM: 650MB/74 min., 2001.

G. B. Oxfam - Oxford, “Oxfam water supply scheme for emergencies : water filtration pack”. Oxfam, Oxford, UK, p. 26 p. : fig., tabs., 2000.

D. Manz, “CWF household filter”. Samaritan's Purse, International Relief, p. 58 p. : photogr., tabs., 1999.

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.

R. S. Wotton and Hirabayashi, K., “Midge larvae (diptera: chironomidae) as engineers in slow sand filter beds”, Water research, pp. p. 1509-1515 : 3 fig., 1999.

A. Mercado, “Disinfection systems of appropriate technology in Cochabamba, Bolivia”. Universidad Mayor de San Simon, Cochabamba, Bolivia, p. 11 p. : 6 fig., 2 tab., 1998.

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.

G. Mwiinga, “The potential for the use of roughing - slow sand filtration systems in Zambia”. University of Zambia, Lusaka, Zambia, p. xiii, 140 p. : 54 fig., 28 tab., 1998.

M. J. D. Graham and Luxton, P. J., “Preliminary evaluation of natural fabrics in slow sand filtration”, Aqua : journal of water supply research and technology, 1998.

F. J. S. O. P. A. C. - Suva and UNEP International Environmental Technology Centre -Osaka/Shiga, JP, IETC, Source book of alternative technologies for freshwater augmentation in small island developing states, vol. no. 8E. Osaka, Japan: UNEP International Environmental Technology Centre, 1998, p. x, 223 p. : drwngs.

B. J. Lloyd, Woudneh, M. B., and Stevenson, D., “The behaviour of 2,4-D as it filters through slow sand filters”, Aqua : journal of water supply research and technology, pp. p. 144-149 : 6 fig., 3 tab., 1997.

F. Solsona and Kariuki, A. W., Report to the Water Research Commission. Part 1 on a dynamic cross-flow sand filter for rural water treatment. Part 2 on a technical guide for a dynamic cross-flow sand filter, vol. no. 539/1/97. Pretoria, South Africa: Water Research Commission, WRC, 1997, p. vii, 77 p. : fig., photogr., tab.

J. T. Visscher, Technology transfer in the water supply and sanitation sector : a learning experience from Colombia, vol. no. 32-E. The Hague, The Netherlands: IRC, 1997, p. ix, 90 p. : 4 boxes, fig., photogr., 8 tab.

N. Graham and Collins, R., “Advances in slow sand and alternative biological filtration”. Wiley, Chichester, UK, p. xvii, 461 p. : fig., tab., 1996.

B. J. Lloyd, Clarke, B. A., Crompton, J. L., and Major, I. P., “Cleaning of upflow gravel prefilters in multistage filtration water treatment plants”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 391-401 : 10 fig., 1 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.

B. J. Lloyd, Graham, M. J. D., Clarke, B. A., and Jones, C. J., “Effect of reduced depth, fabric-protected slow sand filters on treated water quality”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 233-243 : 7 fig., 6 tab.

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.

G. B. Li, Du, K. Y., and Ma, J., “Multi-stage slow sand filtration for the treatment of high turbid water”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 371-378 : 5 fig., 1 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.

M. Wegelin, Zimmerman, T., and Burgthaler, B., “Rehabilitation of slow sand filters and new treatment plant designs in rural Cameroon”, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 359-369 : 7 fig., 5 tab.