Biblio

B. J. Lloyd, 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.

B. J. Lloyd, Visscher, J. T., and 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.

B. J. Lloyd, Visscher, J. T., and G. C., G., “Multi-stage surface water treatment for community water supply in Colombia”, Waterlines, an international journal of water, sanitation and waste, pp. p. 26-29 : 3 fig., 3 tab., photogr., 1992.

B. J. Lloyd, Wheeler, D., and Pardon, M., “The performance of slow sand filters in Peru”, in Slow sand filtration : recent developments in water treatment technology, 1988, pp. P. 393-411: fig., tab.

B. J. Lloyd, Wheeler, D., and Pardon, M., “Final report on the development, evaluation and field trials of a small scale, multi-stage, modular filtration system for the treatment of rural water supplies”. DelAgua, Lima, Peru, p. 42, 107 p. : fig., tab., 1986.

B. J. Lloyd, Wheeler, D., Pardon, M., and Symonds, C. N., “Aspects of prefiltration concerned with the application of small scale slow sand filtration in rural communities”. University of Surrey, Department of Microbiology, Guildford, UK, p. 112 p.: fig., tab., photogr., 1985.

B. J. Lloyd, Wheeler, D., and Baker, T., “Appropriate water supply systems for disaster relief. II. The evaluation and development of a treatment system for surface water”. University of Surrey, Department of Microbiology, Guildford, UK, p. 13 p., 1983.

B. J. Lloyd, Wheeler, D., and Baker, T., “Appropriate water supply systems for disaster relief. Vol. 2. The evaluation and development of a treatment system for surface water”. University of Surrey, Department of Microbiology, Guildford, UK, p. 13 p., 1983.

B. J. Lloyd, Wheeler, D., Pardon, M., and Symonds, C. N., “Progress report (phase II) for the attention of UK Overseas Development Administration : rural water treatment package plant”. Overseas Development Administration (ODA), London, UK, p. 134 p.: fig., 1983.