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Lehigh University

Environmental Engineering

Biosand

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Investigation On The Effects Of Design And Operational Variables On The Efficacy Of Biosand Filters, Julie Napotnik Jan 2014

Investigation On The Effects Of Design And Operational Variables On The Efficacy Of Biosand Filters, Julie Napotnik

Theses and Dissertations

The following paper reports on the efforts made to assist in the overall implementation of one specific household water treatment (HWT) for improving water quality for people in developing countries, biosand filters (BSFs). It is recognized that BSFs are not applicable for every situation or community. When BSFs were first developed for household applications, the minimum sand bed depth was determined to be 50 cm, based on existing Canadian regulations for water treatment through large-scale, high-capacity sand filters. We questioned this basic assumption, and investigated whether smaller, lighter, and cheaper BSFs (with a shorter sand bed depth) are as effective ...