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Journal Articles Journal of Micromechanics and Microengineering Year : 2017

A MEMS approach to determine the biochemical oxygen demand (BOD) of wastewaters

L Recoules
  • Function : Author
A Migaou
  • Function : Author
X Dollat
  • Function : Author
Gerald Thouand
A Gue
  • Function : Author
Ali Boukabache

Abstract

A MEMS approach to obtain an efficient tool for the evaluation of the biochemical oxygen demand (BOD) of wastewaters is introduced. Its operating principle is based on the measurement of oxygen concentration in water samples containing organic pollutants and specific bacteria. The microsystem has been designed to perform multiple and parallel measurements in a poly-wells microfluidic device. The monitoring of the bacterial activity is ensured by optical sensors incorporated in each well of the fluidic network. By using an optode sensor, it is hereby demonstrated that this approach is efficient to measure organic pollutants by testing different Luria Bertani buffer dilutions. These results also show that it is possible to reduce the duration of measurements from 5 d (BOD5) of the standard approach to few hours, typically 3 h–5 h.
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hal-02536473 , version 1 (08-04-2020)

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L Recoules, A Migaou, X Dollat, Gerald Thouand, A Gue, et al.. A MEMS approach to determine the biochemical oxygen demand (BOD) of wastewaters. Journal of Micromechanics and Microengineering, 2017, 27 (7), pp.075018. ⟨10.1088/1361-6439/aa710e⟩. ⟨hal-02536473⟩
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