Guest guest Posted June 7, 2001 Report Share Posted June 7, 2001 Thursday, 7 June 2001 9:47 Pig pong could soon be gone >Pig pong could soon be gone > From AAP >07jun01 > >10:25 (AEST) RESEARCHERS are analysing the offensive odours that waft from >Australian piggeries in an effort to make them smell better. > >Department of Primary Industries researchers capture the gases in plastic >bags, using a wind tunnel which floats on the surface of piggery effluent >ponds. > >The samples are analysed for odour concentration in a specially equipped >laboratory in Toowoomba, focusing particularly on hydrogen and ammonia >content - components contributing to offensive odours. > >Project leader Ken Casey said the final arbiter in the process was the human >nose. > > " Human sniffers check the odour concentration of the samples by smelling >clean air and samples from the pond, " Mr Casey said. > >He said liquid samples from the ponds were also analysed to determine the >organic matter present and the presence of purple sulfur bacteria, which is >thought to reduce odour emissions. > > " High organic content can increase odours but the bacteria seem to reduce it >by oxidising hydrogen sulphide into elemental sulphur, " Mr Casey said. > >He said the end result of the three-year program would be better smelling >piggeries around Australia. > > > > > Quote Link to comment Share on other sites More sharing options...
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