Abstract

Accumulated solids associated with the operation of aerated and facultative lagoons in cold climates were investigated to determine (1) the rate and extent of solids accumulation, (2) the characteristics of the accumulated solids, (3) the potential for in situ stabilization of the accumulated solids, and (4) the effect of lime treatment upon the pathogenic population and subsequent solids drying on sand and soil beds. Accumulated sludges from the Logan and Corinne, Utah, facultative lagoons and the Palmer and Galena, Alaska, partial-mix aerated lagoons were studied. The rates of accumulation, determined by in situ measurement of the sludge layer in each lagoon, were found to vary with lagoon type and specific operational and environmental conditions.

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