Significant benefits of combining acid digestion and PAD – what if your digesters were the sidestream? PRESENTATION ONLY
Williams, M., Thermal Process Systems, Inc., USA
(Free)
Anaerobic Digestion Challenges
Nutrient Recycle from Dewatering
Ammonia Production
Phosphorus Release
Struvite
Hydrogen Sulfide
Dewatering Performance
EPS formation
More coagulant & Polymer
Low Solids %
Odors in room & solids
There are several solutions!
Sidestream Deammonification (Anammox, etc.)
Struvite Precipitation & Recovery (Mg Addition)
Ferric Chloride Addition to control H2S (& Struvite)
Odor Control (chemical, scrubbers, etc.)
Most current approaches are treating symptoms and not focused on the digestion process…