Safe potable water is a luxury that is generally unavailable to the majority of rural and suburban populations of developing, underdeveloped, and often developed countries.
Important considerations in the development and maintenance of safe water supplies is the availability and use of efficient, inexpensive, and appropriate technology for removing microbial hazards, parasites, and toxicants.
The Manz intermittent slow sand filter was known to be user friendly, small enough to fit into the smallest kitchen, and could remove up to 97% of the fecal coliforms present in the raw water before treatment by the Manz filter.
This filter was evaluated for its ability to remove parasitic cysts and toxicants as well as bacteria.
Using two different filters and two different water supplies our results indicated that the intermittent slow sand filter could remove 83+% total heterotrophic bacterial populations, 100% of Giardia cysts, 99.98% of Cryptosporidium oocysts, and 50-90% of organic and inorganic toxicants when administered in concentrations varying from 10->100 x environmental pollution levels.
Methodology details are provided in the paper.
Mots-clés Pascal : Toxique, Filtre sable, Eau potable, Kyste, Epuration eau usée, Biofilm, Equipement ménager, Giardia lamblia, Diplomonadida, Protozoa, Cryptosporidium, Apicomplexa, Coliforme, Bactérie, Parasite, Microorganisme
Mots-clés Pascal anglais : Poison, Sand filter, Drinking water, Cyst, Waste water purification, Biofilm, Domestic appliances, Giardia lamblia, Diplomonadida, Protozoa, Cryptosporidium, Apicomplexa, Coliforms, Bacteria, Parasite, Microorganism
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0399198
Code Inist : 001D16A02. Création : 22/03/2000.