Article Information
Development of Volumetric Methane Measurement Instrument for Laboratory Scale Anaerobic Reactors

Keywords: Volumetric, Methane Measurement, Instrument, Laboratory Scale, Anaerobic Reactor

Mehran University Research Journal of Engineering & Technology

Volume 34 ,  Issue 3

Abdul Razaque  Sahito,Rasool Bux  Mahar,Manzoor-ul-Haq  Rajput


In the present study, a newly developed VMMI (Volumetric Methane-Measuring Instrument) for laboratory scale anaerobic reactors is presented. The VMMI is a reliable, inexpensive, easy to construct, easy to use, corrosion resistant device that does not need maintenance, can measure a wide flow range of gas at varying pressure and temperature. As per the results of the error analysis, the accuracy of the VMMI is unilateral, i.e. -6.91%. The calibration of VMMI was investigated and a linear variation was found; hence, in situ calibration is recommended for this type of instrument. As per chromatographic analysis, it absorbs almost 100% of the carbon dioxide present in the biogas, results only the methane, and thus eliminates the need of cost intensive composition analysis of biogas through gas chromatograph