Biblio

R. C. Rainey and Harding, A. K., “Drinking water quality and solar disinfection : effectiveness in peri-urban households in Nepal”, Journal of water and health, pp. p. 239-248 : 1 fig., 5 tab., 2005.

M. Chukwurah, “Household water filtration system for rural areas”, in Towards the millennium development goals - actions for water and environmental sanitation : proceedings of the 29th WEDC conference, Abuja, Nigeria, 2003, Loughborough, UK, 2003, pp. P. 97-99 : 1 fig., 1 tab.

O. Zimmo, Nitrogen transformations and removal mechanisms in algal and duckweed waste stabilisation ponds. Lisse, The Netherlands: Swets and Zeitlinger, 2003, p. 131 p. : fig., tab.

J. G. Hering, Chen, P. - Y., Wilkie, J. A., Elimelech, M., and Liang, S., “Arsenic removal by ferric chloride”, Journal American Water Works Association, pp. p. 155-167: 7 fig., 3 tab., 1996.

G. J. Alaerts, Buiteman, J. P., and Ahsan, T., “Direct horizontal-flow roughing filtration. Part I : optimisation of process parameters”, Aqua : journal of water supply research and technology, pp. p. 262-271 : 8 fig., 3 tab., 1996.

G. J. Alaerts, 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.

S. Kawamura, “Optimisation of basic water-treatment processes - design and operation : coagulation and flocculation”, Aqua : journal of water supply research and technology, pp. p. 35-47: 10 fig., 1 tab., 1996.

M. R. Schock, Lytle, D. A., and Clement, J. A., “Effect of pH, DIC, orthophosphate and sulfate on drinking water cuprosolvency”. US Environmental Protection Agency (EPA), Cincinnati, OH, USA, p. x, 95 p. : 22 fig., 10 tab., 1995.

G. J. Alaerts, Petrusevski, B., and van Breemen, A. N., “Optimisation of coagulation conditions for direct filtration of impounded surface water”, Aqua : journal of water supply research and technology, pp. p. 93-102: 8 fig., 1995.

H. Bregnhoj, Processes and kinetics of defluoridation of drinking water using bone char. Lyngby, Denmark: Technical University of Denmark, 1995, p. vi, 112 p. : fig., tab.

A. G. Bhole, “Relative evaluation of a few natural coagulants”, Aqua : journal of water supply research and technology, pp. p. 284-290: 10 fig., 2 tab., 1995.

J. Collett, Ali, I., Ahmed, K., Moody, T., Raza, H., and Abbas, M., “Report of microbiological examination of twin pit compost latrine (TPCL) after 1 year closure”. Aga Khan Health Service, Gilgit, Pakistan, p. 15 p. : fig., tab., 1995.

G. Lettinga and van Haandel, A. C., Anaerobic sewage treatment : a practical guide for regions with a hot climate. Chichester, UK: Wiley, 1994, p. x, 226 p. : fig., tab.

D. D. Mara and Curtis, T. P., The effect of sunlight on mechanisms for the die-off of faecal coliform bacteria in waste stabilization ponds, vol. no. 1. Leeds, UK: University of Leeds, Department of Civil Engineering, 1994, p. x, 94 p.: fig., 1 photogr., tab.

G. B. Robens Ins Guildford, “Oxfam/DelAgua portable water testing kit : users manual”. University of Surrey, Robens Institute, Guildford, UK, p. 60 p. : ill., 1993.

Y. Chartier, “Hygiene facilities in rural and poor urban areas and a proposal for sullage - using pour-flush toilet”. University of Leeds, Department of Civil Engineering, Leeds, UK, p. 148 p.: 31 fig., ill., photogr., 6 tab., 1992.

Socio-Economic Units, Kerala -Trivandrum, IN and Trivandrum, I. N. Kerala Sta, “The bacterial quality of water in selected wells in Kerala : an investigation”, vol. no. 6. Kerala Water Authority, Socio-Economic Units, Trivandrum, India, p. iii, 23 p. : tab., 1991.

A. K. Chaturvedi, Yadava, K. P., Pathak, K. C., and Singh, V. N., “Defluoridation of water by adsorption on fly ash”, Water, air, and soil pollution, pp. P. 51-61: fig., tab., 1990.

M. Verhaegh, “Water the spring of life : a research on the quality of drinking-water in the Mantsonyane area”. University of Maastricht, Maastricht, The Netherlands, p. 44 p. + 24 p. ann.: fig., tab., 1990.

G. B. Public Hea London, “Performance of fabric protected slow sand filters treating poor quality river water”. Imperial College, Department of Civil Engineering, Public Health and Water Resea, London, UK, p. 76 p.: fig., tab., 1989.

A. G. Bhole, “Performance studies of a few natural coagulants”, Asian environment, pp. p. 48-53: tab., 1989.

S. Phillips and McGuckin, J., “The Pyalong slow sand filtration plant : performance from January 1987-June 1988 : final report”. Rural Water Commission of Victoria, Armadale, Vic, Australia, p. various paging: 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.

U. Neis, “Difficulties in the operation of new slow sand filters in Africa”. Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ), Bujumbura, Burundi, p. 16 p.: fig., tab., 1988.

K. B. P. N. Jinadasa, Weerasooriya, S. W. R., and Dissanayake, C. B., “A rapid method for the defluoridation of fluoride-rich drinking waters at village level”, International journal of environmental studies, pp. p. 305-312: fig., tab., 1988.