The Application of Active Micro-organisms to Control Compost Odour

South, B., Applied Environmental Research Centre Ltd


Two management systems for post tunnel maturation of green waste compost are compared for development and dispersion
of organic odours. The first was a traditional turned windrow system turned using a windrow turner when oxygen concentration
fell below 10%. The second was treated with Biosa, an effective micro-organism technology based on lactic acid bacteria.
Clear differences in the oxygen and temperature profiles were observed between the two systems. Weekly measurements
were taken from within the two windrows for six weeks using absorbent tubes and subsequently analysed by GC-MS for the
top twenty volatile organic compounds. Comparisons of yield stability and compost quality are also made between the two
compost products after six weeks processing.
Composting, green waste, odour

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