For decades, the City of Lebanon Authority in Pennsylvania applied Class B biosolids to cropland in liquid or cake form. But in recent times, the authority found itself at the mercy of weather, community attitudes, storage constraints and other factors complicating the biosolids program.
So, in 2014, the district started up a drying process to yield Class A biosolids. It produces material at 94% to 95% solids, suitable for multiple uses including farm and landscape fertilizer and landfill soil reclamation. At present, an agricultural service company takes essentially all the material in bulk, ending the challenge of marketing and distribution.
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