Biblio

F. Gomez, M. Badel, H., and M. Badel, H., “Evaluación comparativa de la operación y mantenimiento de filtros lentos en arena a escala piloto que utilizan mantas sintéticas y naturales”. Universidad del Valle, Facultad de Ingenieria, Cali, Colombia, p. 95 p., 1991.

M. R. Collins, Eighmy, T. T., and Malley, J. P., “Evaluating modifications to slow sand filters”, Journal American Water Works Association, pp. p. 62-70: 7 fig., 5 tab., photogr., 1991.

M. J. D. Graham and Clarke, B. A., “Evaluation of fabric enhanced reduced depth slow sand filters : research scheme R4648 : [progress report]”. University of Surrey, Department of Civil Engineering, Guildford, UK, p. 25 p.: 17 fig., ill., 1991.

B. A. Janonis, Logsdon, G. S., Collins, M. R., Barrett, J. M., Bryck, J. M. G., and Hendricks, D., Manual of design for slow sand filtration. Denver, CO, USA: American Water Works Association, 1991, p. xxxv, 247 p.: fig., tab.

H. C. Arora and Nagpal, J. L., “Performance evaluation of defluoridation plant at Fazilpur, Gurgaon (Haryana)”, Journal of Indian Water Works Association, pp. p. 255-259: 1 fig., 1 tab., 1991.

M. J. D. Graham and Mbwette, T. S. A., “Protected slow sand filtration : specification of non-woven synthetic fabric layers”, Water supply : the review journal of the International Water Supply Association, pp. p. 157-164: fig., tab., 1991.

H. Schiller, “Sewage treatment with soil-and-plant filters : report from the Sierra de Cordoba, Argentina”, Gate : technology and development, pp. p. 24, 29-30: 3 fig., 1991.

B. J. Lloyd, Graham, M. J. D., and Barrott, L. P., “Comparative evaluation of two novel disinfection methods for small-community water treatment in developing countries”, Aqua : journal of water supply research and technology, pp. p. 396-404: fig., tab., 1990.

S. Veenstra, Alaerts, G. J., Bentvelsen, M., and van Duijl, L. A., “Feasibility of anaerobic sewage treatment in sanitation strategies in developing countries”, vol. no. 20. IHE (International Institute for Infrastructural, Hydraulic and Environmental Engineering), Delft, The Netherlands, p. ix, 130 p.: fig., photogr., tab., 1990.

M. J. D. Graham, Mbwette, T. S. A., and Steitieh, M. A. R., “Performance of fabric-protected slow sand filters treating a lowland surface water”, Journal of Institution of Water and Environmental Management, pp. p. 51-61: fig., 1990.

K. Goitom, Performance of pilot scale slow sand filters using different local sands in Ethiopia, vol. no. 44. Tampere, Finland: Tampere University of Technology, Institute of Water and Environmental Engineeri, 1990, p. 54 p., app. 3 p.: fig., tab.

C. Bartone, Moscoso, J., and Nava, H., “Peruvian experiment proves reuse benefits aquaculture”, Water and wastewater international, pp. p. 45, 47-49 : photogr., 1990.

D. E. Leland and Damewood, M., “Slow sand filtration in small systems in Oregon”, Journal American Water Works Association, pp. p. 50-59: fig., photogr., tab., 1990.

S. Satyanarayan, “Fate of helminth ova during nightsoil digestion : a laboratory and pilot study”, Asian environment, pp. p. 3-9: tab., 1989.

S. K. Gadkari, Kaul, S. N., Badrinath, S. D., Deshpande, V. P., and Dixit, R. C., “Performance evaluation of continuous flow iron removal pilot plant”, Asian environment, pp. p. 31-38: fig., tab., 1989.

C. O. Universida Cali and IRC International Water and Sanitation Centre, The Hague, NL, “Proyecto integrado de investigacion y demostracion de metodos de pretratamiento para sistemas de abastecimiento de agua : reporte de progreso, febrero de 1989”. Universidad del Valle, Facultad de Ingenieria, Cali, Colombia, p. 11 p. + 15 p. annexes: 8 photogr., 3 tab., 4 techn.drwgs, 1989.

IRC International Water and Sanitation Centre, The Hague, NL and National Environmental Engineering Research Institute -Nagpur, IN, NEERI, “Slow sand filtration : phase IV final report”. National Environmental Engineering Research Institute, NEERI, Nagpur, India, p. 118 p.: fig., tab., 1989.

A. Mayo, Bacterial die-off in waste stabilization ponds receiving domestic wastewater in Dar es Salaam, Tanzania, vol. no. 36. Tampere, Finland: Tampere University of Technology, Institute of Water and Environmental Engineeri, 1988, p. 69 p.: fig., tab.

J. W. de Lange, “Direct filtration for the water supply of Sukabumi, Indonesia”. Delft University of Technology, Department of Civil Engineering, Delft, The Netherlands, p. 28, 35 p.: fig., tab., 1988.

T. F. Ryan, “Dual media filtration for the rehabilitation of an existing slow sand filter in Zimbabwe”, in Slow sand filtration : recent developments in water treatment technology, 1988, pp. P. 379-392: fig., tab.

J. M. Barrett and Silverstein, J., “The effects of high-carbon and high-coliform feed waters on the performance of slow sand filters under tropical conditions”, in Slow sand filtration : recent developments in water treatment technology, 1988, pp. P. 231-252: fig., tab.

N. L. Obladen and M. Aisse, M., “El biogas urbano : Brasil”, in Saneamiento alternativo o alternativas al saneamiento : actas del 1er seminario latinoamericano sobre saneamiento alternativo, Medellin, Colombia, Julio 24-29 de 1987, 1988, pp. P. 407-440 : fig.

M. J. D. Graham and Mbwette, T. S. A., “Pilot plant evaluation of fabric-protected slow sand filters”, in Slow sand filtration : recent developments in water treatment technology, 1988, pp. P. 305-329: fig., tab., photogr.

C. M. J. Yeh, “A quantitative investigation into the effectiveness of jute fiber as a medium for the pre-treatment of raw water supplies”, vol. no. EV-88-30. Asian Institute of Technology, Bangkok, Thailand, p. 2 microfiche (iv, 88 p.): fig., tab., 1988.

P. G. Williams, “Study of a horizontal-flow roughing filter for pretreatment prior to slow sand filtration”, in Seminar on water supply and sanitation, KwaZulu : Elangeni Hotel, Durban, 28-30 June, 1988 : papers, 1988, p. Paper A.2 (11 p.): fig., tab.