This paper reports on research designed to investigate the capacities of different kinds of peat to remove odor‐causing compounds from liquid swine manure (LSM). Two experiments were conducted. In experiment #1, five different peat types (both wet and dry) representing a wide range of properties were tested. Eight percent slurries (of peat/LSM) were measured for odor changes at 6, 24, and 96 hours using odor panel and GC/FID analysis. Experiment #2 was designed to determine more precisely the kinds of odor‐causing compounds thatwere changing during treatment. Two extremely different wet peat types were tested in 8 percent slurries after 24 hours of treatment. Odor changes were evaluated using both an odor panel and GC/MS, head‐space, solid‐phase, microextraction (HSM).
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