Abstract
Effects of lime [Ca(OH) 2] stabilization upon the pathogenic population in accumulated solids associated with the operation of two aerated wastewater lagoons in Alaska and two facultative wastewater lagoons in northern Utah were evaluated. The subsequent drying, at a temperature of 12 °C, of the lime stabilized sludges on sand and soil beds was also investigated. The lime stabilization of the lagoon sludges was evaluated by dosing the sludges with lime and applying sludges to bench scale drying beds. Lime addition produced high fecal coliform reduction, and the limed sludges readily dewatered on both sand and soil beds.
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