Biblio

C. C. Dorea, Clarke, B. A., y 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. B. Vimos Astudillo, «Efecto de la velocidad de filtración en la operación de clarificadores de filtración gruesa ascendente en capas para aguas superficiales provenientes del páramo de baja turbiedad y baja temperatura». Universidad del Valle, Facultad de Ingenieria, Cali, Colombia, p. 180 p. ,tables, graphics, photos, 2003.

N. J. A. Mahmoud, Anaerobic pre-treatment of sewage under low temperature (15 C) conditions in an integrated UASB-digester system. Wageningen, The Netherlands: Agricultural University Wageningen, 2002, p. 128 p. : fig., tab.

G. B. Oxfam - Oxford, «Oxfam guidelines for water treatment in emergencies». Oxfam, Oxford, UK, p. 45 p. : 4 fig., 2001.

T. A. Elmitwalli, Anaerobic treatment of domestic sewage at low temperature. Wageningen, The Netherlands: Agricultural University Wageningen, 2000, p. 113 p. : fig., tab.

T. O. Okurut, A pilot study on municipal wastewater treatment using a constructed wetland in Uganda. Rotterdam, The Netherlands: A.A. Balkema, 2000, p. xii, 171 p. : fig., tab.

C. Polprasert y Poh-Eng, L., Constructed wetlands for wastewater treatment and resource recovery, vol. no. 41. Bangkok, Thailand: Environmental Sanitation Information Center, ENSIC, 1998, p. 120 p. + 6 p. app. : fig., tab.

L. J. M., Wegelin, M., y G. 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.

B. J. Lloyd, Clarke, B. A., Crompton, J. L., y 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., y 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.

J. T. Visscher, J. M., L., y 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, 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.

B. J. Lloyd, Clarke, B. A., Jones, C. J., y Evans, H. L., «Water treatment by multistage filtration utilising gravel prefilters and fabric enhanced slow sand filters», in Advances in slow sand and alternative biological filtration, 1996, pp. P. 313-326 : 12 fig., 2 tab.

C. Dean y Horan, N., Applications of UASB technology in Mauritius, vol. no. 7. Leeds, UK: University of Leeds, Department of Civil Engineering, 1995, p. xi, 91 p. : fig., tab.

K. N. Scott, Green, J. F., Do, H. D., y McLean, S. J., «Arsenic removal by coagulation», Journal American Water Works Association, pp. p. 114-126: 5 fig., 10 tab., 1995.

J. Arundel, Sewage and industrial effluent treatment : a practical guide. Oxford, UK: Blackwell Science, 1995, p. xiii, 242 p.: fig., tab.

C. P. Gerba, Straub, T. M., Rose, J. B., Karpiscak, M. M., Foster, K. E., y Brittain, R. G., «Water quality study of graywater treatment systems», Water resources journal, pp. p. 78-84: 4 fig., 5 tab., 1995.

M. R. Collins, Cole, J. O., Westersund, C. M., y 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.

B. J. Lloyd, Visscher, J. T., y 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.

H. Brix, «Use of constructed wetlands in water pollution control : historical development, present status, and future perspectives», Water science and technology, pp. p. 209-223 : 9 fig., 1994.

J. T. Visscher, G. C., G., y 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.

J. P. Kramer y Wouters, J. W., «DynaSand filtration for drinking-water production», Aqua : journal of water supply research and technology, pp. p. 97-104: 10 fig., 5 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.

L. Rietveld y Matsinhe, N., Pilot plant studies on slow-sand-filtration and up-flow-roughing-filtration in Mozambique, vol. no. 44. Delft, The Netherlands: Delft University of Technology, Department of Civil Engineering, 1993, p. v, 46 p. : fig., tab.