Gas produced during the anaerobic decomposition of wastes contains methane (CH4) and carbon dioxide (CO2) as the major components with minor quantities of hydrogen (H2), hydrogen sulfide (H2S), nitrogen (N2), and oxygen (O2). It is saturated with water vapor. Common practice is to analyze the gases produced to estimate their fuel value and to check on the treatment process. The relative proportions of CO2, CH4, and N2 are normally of most concern and the easiest to determine because of the relatively high percentages of these gases.
The content presented here represents the most current version of this section, which was printed in the 24th edition of Standard Methods for the Examination of Water and Wastewater.
2720 ANAEROBIC SLUDGE DIGESTER GAS ANALYSIS
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CITATION
Standard Methods Committee of the American Public Health Association, American Water Works Association, and Water Environment Federation. 2720 anaerobic sludge digester gas analysis
In: Standard Methods For the Examination of Water and Wastewater. Lipps WC, Baxter TE, Braun-Howland E, editors. Washington DC: APHA Press.
DOI: 10.2105/SMWW.2882.036