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The Operation, Flow Conditions And Microbial Reductions Of An Intermittently Operated, Household-Scale Slow Sand Filter, Mark Elliott, Christine E. Stauber, F. Koksal, Kaida R. Liang, D. K. Huslage, Mark Sobsey

Public Health Faculty Publications

Nearly one-fifth of the world's population lacks access to safe, reliable sources of drinking water. Point of use (POU) household water treatment technology allows people to improve the quality of their water by treating it in the home. A promising emerging POU technology is the biosand filter (BSF). The BSF is a household-scale, intermittently operated slow sand filter that maintains a wet media bed containing a schmutzdecke and allows periodic water dosing by the user. Step input chemical tracer tests indicated that the BSF operates at near-plug flow conditions. Six-to-eight week longitudinal challenge studies were conducted with daily charges of …