Construction & Installation

Proper construction of the filter box, preparation of the media, and installation of the sand is challenging, but is of critical importance to the effectiveness of the biosand filter. This section of the website explores some of the challenges which the BSF technician may face.

Designs & Modifications

Why is the present V10 biosand filter the way that it is? What about building a filter out of PVC pipe, or sheet metal? What is a Kanchan filter? This section of the website looks at the history and rational behind the biosand filter design, and alternative designs for the biosand filter.

Operation & Maintenance

The biosand filter is a living ecosystem. This section explores challenges related to how to use and maintain a biosand filter to ensure it remains effective.

Performance

Results of trials showing biosand filter performance at removing different contaminants and under different conditions.

Project Implementation
Support for starting or improving your biosand filter project.                                                                                                                                                        
Download
Biosand Filter
Construction
Manual

Latest additions

(Elliott, M.; Stauber, C.; DiGiano, F.; de Aceituno, A.; Sobsey, M. 2015)
(Napotnik, J.; Jellison, K. 2014)
Projects aiming to improve health cannot be just technology-driven, or the technology will under perform. Field situations are complex, and a holistic approach must be taken. (Voth-Gaeddert, L.E.; Divelbiss, D.W.; Oerther, D.B. 2015)
This study investigated the effect of grain size, hydraulic loading rate, batch residence time, and diffuser design on the performance of the CAWST biosand filter. Coarser grain size reduced bacterial removal efficiency. Longer residence time, on the other hand, improved bacteria removal. In terms of diffuser design, smaller holes and tighter spacing reduced bacterial removal efficiency. (Chan, C.C.V.; Neufeld, K.; Cusworth, D.; Gavrilovic, S.; Ngai, T. 2015)

Pages

TEST PAGE-TAXONOMY.TPL.PHP