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2004
Raschid-Sally, L. and Parkinson, J., Wastewater reuse for agriculture and aquaculture : current and future perspectives for low-income countries, Waterlines, an international journal of water, sanitation and waste, pp. p. 2-4 : 1 box, 4 photogr., 2004.
2003
Rajapakse, J.P., Pebble matrix filtration in Papua New Guinea, Waterlines, an international journal of water, sanitation and waste, pp. p. 12-14 : 2 fig., 2003.
2001
Yang, X.M., Yahashi, T., Kuniyasu, K., and Ohmori, H., On-site systems for domestic wastewater treatment (johkasous) in Japan, in Decentralised sanitation and reuse : concepts, systems and implementation, 2001, pp. P. 257-280 : 16 fig., 14 tab.
Lettinga, G., Potentials of anaerobic pre-treatment (AnWT) of domestic sewage under tropical conditions, in Decentralised sanitation and reuse : concepts, systems and implementation, 2001, pp. P. 205-217 : 3 fig., 2 tab.
2000
Elmitwalli, T.A., Anaerobic treatment of domestic sewage at low temperature. Wageningen, The Netherlands: Agricultural University Wageningen, 2000, p. 113 p. : fig., tab.
1998
Latorre M., J., Wegelin, M., and Galvis C., G., La filtracion gruesa en el tratamiento de agua de fuentes superficiales, vol. no. 4/98. SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. vi, 170 p. : fig., photogr., tab., 1998.
Strauss, M., Heinss, U., and Larmie, S.A., Solids separation and pond systems for the treatment of faecal sludges in the tropics : lessons learnt and recommendations for preliminary design, vol. no. 5/98. Water and Sanitation in Developing Countries (SANDEC), Duebendorf, Switzerland, 1998.
1996
Graham, N. and Collins, R., Advances in slow sand and alternative biological filtration. Wiley, Chichester, UK, p. xvii, 461 p. : fig., tab., 1996.
Lloyd, B.J., 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.
Visscher, J.T., Latorre M., J., Galvis 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.
Alaerts, G.J., 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.
Visscher, J.T., Latorre M., J., and Galvis 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.
Wegelin, M., Surface water treatment by roughing filters : a design, construction and operation manual, vol. no. 2/96. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 1996, p. 163 p. : fig., tab.
1995
Padmasiri, J.P., 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.
Ahsan, T., Process analysis and optimization of direct horizontal-flow roughing filtration. Rotterdam, The Netherlands: A.A. Balkema, 1995, p. x, 193 p.: fig., tab.
1994
Collins, M.R., Cole, J.O., Westersund, C.M., and Paris, D.B., Assessing roughing filtration design variables, Water supply : the review journal of the International Water Supply Association, pp. p. SS 5.29 - 5.40: 9 fig., 11 tab., 1994.
Collins, M.R., Roccaro, J.V., Cole, J.O., and Westersund, C.M., Evaluation of roughing filtration design variables. Denver, CO, USA: American Water Works Association, 1994, p. xxvii, 181 p.: 83 fig., 50 tab.
Lloyd, B.J., Visscher, J.T., and Galvis 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.
Latorre M., J., 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.
Klein, H.-P. and Berger, C., Slow sand filters covered by geotextiles, Water supply : the review journal of the International Water Supply Association, pp. p. 221-230: 6 fig., 4 tab., 1994.
Graham, M.J.D. and Collins, M.R., Slow sand filtration : an international compilation of recent scientific and operational developments. American Water Works Association, Denver, CO, USA, p. xi, 322 p.: fig., tab., 1994.
Quiroga R., E., A successful water rehabilitation project arising from diagnostic surveillance. University of Surrey, Department of Civil Engineering, Guildford, UK, p. viii, 75 p.: 18 fig., 7 tab., 1994.

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