Experimental Study of Windrow Composting of Sludge

by Richard C. Carmichael, Woodward-Clyde Consultant, United States,
Michael A. Collins, Woodward-Clyde Consultant, United States,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

An experimental field study of the windrow composition of sludge at the City of Dallas, Texas, Southside Waste Water Treatment Plant was conducted to provide data for possible design of a demonstration scale compositing project. A series of full sized conical windrow piles were constructed and monitored to examine the effects of design parameters and environmental conditions. Bulking agent type and ratios, moisture contents, free air space, volatile solids reduction, and pile temperature were studied. Free air space was found to be a key parameter in effective pile operation.

Subject Headings: Field tests | Composting | Wastewater treatment plants | Sludge | Piles | Parameters (statistics) | Water treatment plants | United States | Texas

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