The targets of dump monitoring are twofold: O2, CO2 and CH4 to maximise the production of CH4 and amines, mercaptanes, aldehydes, acids to keep the
smell under control. The most common instruments are optical or electrochemical: compact, quick and easy to use, but they are poorly selective and subject
to interferences. Microgaschromatographs separate the air sample reducing interferences, can measure a wide range of compounds and are quick enough
thank to micro instrumental components.
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