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Designing Iron-Amended Biosand Filters for Decentralized Safe Drinking Water Provision

Noubactep, ChicgouaORCIDiD
Temgoua, Emile
Rahman, Mohammad A.
Preprint
2012
DOI: https://doi.org/10.1002/clen.201100620
Noubactep, Chicgoua; Temgoua, Emile; Rahman, Mohammad A., 2012: Designing Iron-Amended Biosand Filters for Decentralized Safe Drinking Water Provision. In: Noubactep, Chicgoua; Temgoua, Emile; Rahman, Mohammad A. (2012): Designing Iron-Amended Biosand Filters for Decentralized Safe Drinking Water Provision, 798 - 807, DOI 10.1002/clen.201100620.
 
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  • Abstract
There are ongoing efforts to render conventional biosand filters (BSF) more efficient for safe drinking water provision. One promising option is to amend BSF with a reactive layer containing metallic iron (Fe0). The present communication presents some conceptual options for efficient Fe0-amended BSF in its fourth generation. It is shown that a second fine-sand layer should be placed downwards from the Fe0-reactive layer to capture dissolved Fe. This second fine-sand layer could advantageously contain adsorbing materials (e.g. activated carbons, wooden charcoals). An approach for sizing the Fe0-reactive layer is suggested based on 3 kg Fe0 per filter. Working with the same Fe0 load will ease comparison of results with different materials and the scaling up of household BSF to large scale community slow sand filters (SSF).
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