Biblio

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.

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

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.

M. Wegelin, Schertenleib, R., and Boller, M., “The decade of roughing filters : development of a rural water-treatment process for developing countries”, Aqua : journal of water supply research and technology, pp. p. 304-316: 17 fig., 2 tab., 1991.

T. S. A. Mbwette and Wegelin, M., “Design, operation and maintenance considerations of horizontal flow roughing filters”, Waterlines, an international journal of water, sanitation and waste, pp. p. 27-29: fig., photogr., tab., 1989.

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.

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.

M. Wegelin, “Horizontal-flow roughing filtration (HRF) : a design, construction and operation manual”, vol. no. 06/86. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. 142 p. in various pagings: fig., tab., 1986.