Development of a Series Filtration Water Treatment Canister for Supplying Drinking Water to Individual Soldiers and Small Units in the Field.

摘要

A water treatment filter capable of supplying drinking water to small units in the field has been developed and successfully tested over a limited range of field conditions in Thailand. The filter unit contained shredded coconut fiber and burnt rice husks as filter media,two readily available and inexpensive materials found throughout most of Southeast Asia. The clarity of the treated water was generally less than five units of turbidity (JTU) and color free. Disinfection with one mg/l chlorine or less is necessary to insure USPHS Drinking Water Standards. A water treatment canister,designed for the individual soldier in the field and using the same filter media,was built and tested in the laboratory. Using the canister intermittently wet-dry-wet-dry appears to be workable and produces a satisfactory water quality. (Modified author abstract)