White Papers

Ferrihydrite Treatment

This paper, published by PCD president Chuck West et al., explains the mechanism behind the ferrihydrite treatment processes which PCD often uses in treatment of metals in wastewater. The paper concentrates on antimony and the effect of ferrihydrite on it.
Example Land Application Loading Calculation

This memo provides an example calculation for determining the agronomic loading rate based on nitrogen for the land application of biosolids. This has been the preferred method by Tennessee Department of Environment and Conservation (TDEC).


New Technology Improves Oxidation of Sulfite - Presentation

This presentation gives an overview of the Oxigent system and its benefits. It was presented to America’s Battery Recyclers in 2004