Skip to main content
Found 259 results
Filters: Keyword is efficiency  [Clear All Filters]
1992
Laport, R., Gavin, J., Darling, J., Game, R.C., y Stomberg, C., «Performance indicators for selected water supply and sanitation utilities in Ecuador», vol. no. 376. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xii, 174 p.: map, 11 tab., 1992.
Collins, M.R., Taylor Eighmy, T., Fenstermacher, J.M., y Spanos, S.K., «Removing natural organic matter by conventional slow sand filtration», Journal American Water Works Association, pp. p. 80-90: 12 fig., 8 tab., 1992.
Vieira, S.M.M. y Garcia, A.D., «Sewage treatment by UASB-reactor : operation results and recommendations for design and utilization», Water science and technology, pp. p. 143-157 : 2 fig., 5 tab., 1992.
1991
Franceys, R., Barker, P., y Akosa, G., «Appraisal and evaluation : a new approach», in Infrastructure for low-income communities : proceedings of the 16th WEDC conference : Regional Centre for Urban and Environmental Studies (RCUES), Osmania University, Hyderabad, India, 27-31 August, 1990, 1991, pp. P. 127-130: 2 tab.
Collins, M.R., Eighmy, T.T., y Malley, J.P., «Evaluating modifications to slow sand filters», Journal American Water Works Association, pp. p. 62-70: 7 fig., 5 tab., photogr., 1991.
Graham, M.J.D. y Clarke, B.A., «Evaluation of fabric enhanced reduced depth slow sand filters : research scheme R4648 : [progress report]». University of Surrey, Department of Civil Engineering, Guildford, UK, p. 25 p.: 17 fig., ill., 1991.
Mbigha, C.C. y Nalluri, C., «Mathematical simulation of reciprocating handpump performance», Aqua : journal of water supply research and technology, pp. p. 281-290: 10 fig., 1 tab., 1991.
Arora, H.C. y Nagpal, J.L., «Performance evaluation of defluoridation plant at Fazilpur, Gurgaon (Haryana)», Journal of Indian Water Works Association, pp. p. 255-259: 1 fig., 1 tab., 1991.
Borghei, M., «Performance of small sewage works in Tehran», in Infrastructure for low-income communities : proceedings of the 16th WEDC conference : Regional Centre for Urban and Environmental Studies (RCUES), Osmania University, Hyderabad, India, 27-31 August, 1990, 1991, pp. P. 149-151: 2 tab.
Koner, P.K., Joshi, J.C., y Chopra, K.L., «A photovoltaic water pump testing facility», RERIC international energy journal, pp. p. 81-97: 9 fig., 4 tab., 1991.
Graham, M.J.D. y Mbwette, T.S.A., «Protected slow sand filtration : specification of non-woven synthetic fabric layers», Water supply : the review journal of the International Water Supply Association, pp. p. 157-164: fig., tab., 1991.
Bell, F.A., «Review of effects of silver-impregnated carbon filters on microbial water quality», Journal American Water Works Association, pp. p. 74-76: 4 tab., 1991.
Garman, P. y Sexon, B., «Water current turbines for Sudan : using the energy in the Nile», Waterlines, an international journal of water, sanitation and waste, pp. p. 30-32: fig., photogr., 1991.
Ellis, K.V., «Water disinfection : a review with some consideration of the requirements of the Third World», Critical reviews in environmental control, pp. p. 341-407: fig., tab., 1991.
1990
New Era -Kathmandu, NP, «A comparative evaluation of the UNICEF assisted semi-urban sanitation pilot programme and the East Consult's sanitation action programme». New Era, Kathmandu, Nepal, p. xiv, 152 p.: fig., tab., 1990.
Kamp, B., Rolot, D., Nditabiriye, D., Naveau, H., y Nyns, E.-J., «Etat et perspectives de la biomethanisation en milieu rural burundais. Pt. 2», Echos du COTA, pp. p. 20-24: fig., 1990.
Kelengwe, E., Evaluation of oxidation ditch technology with reference to the Limuru plant in Kenya, vol. no. 46. Tampere, Finland: Tampere University of Technology, Institute of Water and Environmental Engineeri, 1990, p. 60 p.: fig., tab.
DANIDA -Bhubaneshwar, IN, «India Mark II handpumps with open top cylinders in low lift application : performance report, 1986-1989». DANIDA, Ministry of Foreign Affairs, Bhubaneshwar, India, p. 35, 64 p. : fig., tab., 1990.
Meridian Corporation -Alexandria, VA, US y IT Power -Eversley, GB, «Learning from success : photovoltaic-powered water pumping in Mali». US Committee on Renewable Energy Commerce and Trade, Washington, DC, USA, p. viii, 59 p.: fig., map, tab., 1990.
Kaul, S.N., Pathe, P.P., y Nandy, T., «Physico-chemical treatment of domestic sewage», Asian environment, pp. p. 30-50: fig., tab., 1990.
Leland, D.E. y Damewood, M., «Slow sand filtration in small systems in Oregon», Journal American Water Works Association, pp. p. 50-59: fig., photogr., tab., 1990.
Baldi, G., «Solar water disinfection in Peru», in Solar water disinfection : proceedings of a workshop held at the Brace Research Institute, Montreal, Que., Canada, 15-17 August 1988, 1990, pp. P. 44-65: fig., tab.
Palanisami, K., «Tank irrigation in south India : what next?», vol. no. 90/2e. Overseas Development Institute (ODI), London, UK, p. 15 p.: tab., 1990.
1989
National Environmental Engineering Research Institute -Nagpur, IN, NEERI, Evaluation of water treatment plants in India : final report. Nagpur, India: National Environmental Engineering Research Institute, NEERI, 1989, p. iv, 459 p.: fig., photogr., tab.
Lloyd, B.J., Pardon, M., y Bartram, J., «Improving piped water supplies in Peru», Waterlines, an international journal of water, sanitation and waste, pp. p. 24-26: tab., ill., 1989.

Páginas