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* [[BOD]]
* [[BOD]]
* [[nephelometry]], [[turbidity]]
* [[nephelometry]], [[turbidity]]
* [[Decreasing turbidity to optimize solar water disinfection]]<ref>'''Full article:''' Brittney Dawney and Joshua M. Pearce, "Optimizing the solar water disinfection (SODIS) method by decreasing turbidity with NaCl", ''Journal of Water, Sanitation and Hygiene for Development'' 2(2) pp. 87-94 (2012). [http://dx.doi.org/10.2166/washdev.2012.043 DOI] [http://mtu.academia.edu/JoshuaPearce/Papers/1590504/Optimizing_the_solar_water_disinfection_SODIS_method_by_decreasing_turbidity_with_NaCl Open access]</ref>
* [[Decreasing turbidity to optimize solar water disinfection]]<ref>Brittney Dawney and Joshua M. Pearce, "Optimizing the solar water disinfection (SODIS) method by decreasing turbidity with NaCl", ''Journal of Water, Sanitation and Hygiene for Development'' 2(2) pp. 87-94 (2012). [http://dx.doi.org/10.2166/washdev.2012.043 DOI] [http://mtu.academia.edu/JoshuaPearce/Papers/1590504/Optimizing_the_solar_water_disinfection_SODIS_method_by_decreasing_turbidity_with_NaCl Open access]</ref>


==See Also==
==See Also==

Revision as of 11:10, 13 May 2014

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This project details an open source water testing platform derived from the open-source colorimeter, which is made from open source electronics and 3-D printable components. This is part of a larger project to reduce the cost of scientific equipment using open-source hardware. [1][2]

Source

Bas Wijnen, G. C. Anzalone and Joshua M. Pearce, Open-source mobile water quality testing platform. Journal of Water, Sanitation and Hygiene for Development (In Press, Uncorrected Proof 2014). doi:10.2166/washdev.2014.137 open access soon

ABSTRACT

The developing world remains plagued by lack of access to safe drinking water. Although many low-cost methods have been developed to treat contaminated water, low-cost methods for water-quality testing are necessary to determine if these appropriate technologies are needed, effective, and reliable. This paper provides a methodology for the design, development, and technical validation of a low-cost, open-source (OS) water testing platform. A case study is presented where the platform is developed to provide both the colorimetry for biochemical oxygen demand/chemical oxygen demand and nephelometry to measure turbidity using method ISO 7027. This approach resulted in equipment that is as accurate, but costs between 7.5 and 15 times less than current commercially available tools. It is concluded that OS hardware development is a promising solution for the equipment necessary to perform water quality measurements in both developed and developing regions.

Keywords

BOD; COD; nephelometry; open-source hardware; turbidity; water testing

Design

  • Design files:
  • Firmware:

BOM

Instructions

Applications

See Also

See also

References

  1. Open source lab
  2. Pearce, Joshua M. 2012. “Building Research Equipment with Free, Open-Source Hardware.Science 337 (6100): 1303–1304. [1]
  3. Brittney Dawney and Joshua M. Pearce, "Optimizing the solar water disinfection (SODIS) method by decreasing turbidity with NaCl", Journal of Water, Sanitation and Hygiene for Development 2(2) pp. 87-94 (2012). DOI Open access
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