Biblio

M. R. Collins, 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.

H. A. Minnigh, Ramirez-Toro, G. I., Morales, C., Pipes, W. O., and Vasquez, C. O., “Bacterial removal over time in experimental up-flow and down-flow slow sand filters in a tropical climate”, in Safety of water disinfection : balancing chemical and microbial risks, 1993, pp. P. 553-557: 2 fig.

D. C. Moran, Moran, M. C., Cushing, R. S., and Lawler, D. F., “Particle behavior in deep-bed filtration. Part 1 : Ripening and breakthrough”, Journal American Water Works Association, pp. p. 69-81: 15 fig., 1 tab., 1993.

D. C. Moran, Moran, M. C., Cushing, R. S., and Lawler, D. F., “Particle behavior in deep-bed filtration. Part 2 : Particle detachment”, Journal American Water Works Association, pp. p. 82-93: 8 fig., 2 tab., 1993.

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.

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.

P. G. Williams, “A study of bacteria reduction by slow sand filtration”. National Institute for Water Research, Pretoria, South Africa, p. 16 p.: fig., tab., 1987.

P. K. Jain, “Process rates within slow sand filters”. Department of Civil and Municipal Engineering, University College London, London, UK, p. 288 p. : fig., 1975.

C. Associatio Water, “Water reclamation & domestic water conservation : proceedings of the second annual conference of the California Association of Reclamation Entities (WaterCare), held 24 & 25 June 1975 at Dominican College, San Rafael, California”. WATERCARE, San Jose, CA, USA, p. Various paging : fig., tab. ref., 1975.

J. Pickford, “Water, waste and health in hot countries : second international conference on environmental health and engineering in hot climates & developing countries”. Loughborough University of Technology, Department of Civil Engineering, Loughborough, UK, p. 146 pp. : fig. tab. ref., 1975.

I. N. Central Pu Nagpur, “Problems in water treatment : proceedings of symposium, Nagpur, India, 29th & 30th Oct. 1964,”. Central Public Health Engineering Research Institute, Nagpur, India, p. iv + 394 p. : fig., tab., 1964.

“Handbook of trickling filter design”. Public Work Publications, Ridgewood, NJ, USA, p. 26.p. : fig., tab.