By Michael Washer
Liquid and moisture laden waste streams are a large, and growing, problem in the US, and globally. These waste streams include wastewater treatment solids, animal waste, fats, oils & greases (FOG), black liquor, and food waste. Regulations and limits on landfilling and land application of many of these wastes get tighter, so disposition pathways get more expensive. Fortunately, there is a solution.