Class A Hydrolysis
Class A Hydrolysis is an advancement of GE’s proprietary Biological Hydrolysis (BH) where performance benefits of BH are maintained, namely increasing digester efficiency by 3X, and biogas yield by 25% over conventional AD, however with the added benefit of the production of Class A Biosolids. Class A Biological Hydrolysis utilizes GE's proprietary 6 tank BH platform as the base process application.
What are the benefits to implementing your technology?
Biological Hydrolysis has been shown to enable plant owners with existing digester assets to maximize their utilization, by freeing up room to increase the amount of sludge/organics which can be digested in existing infrastructure. The main benefit of BH is to be an enabling technology for plant owners to convert their WWTPs into energy positive resource recovery facilities.
Has the technology been tested, demonstrated, or implemented anywhere to date?
The Class A Hydrolysis technology is an advancement on GE’s Biological Hydrolysis solution which has been implemented at twelve wastewater treatment plants globally. The Class A Hydrolysis solution, not only provides the plant owner the benefits of Biological Hydrolysis in terms of biogas yield and digester optimization, but also achieves a Class A Biosolid at the end of the overall process. The Class A Hydrolysis is currently operating at Pilot-Scale in Guelph, Ontario Canada, running side by side with the full-scale mesophilic AD at the Guelph WWTP.
What are some of the next steps needed to advance the technology?
The next steps in the advancement of the technology are to demonstrate at full-scale the technology’s capabilities. For this, GE would like to partner with an early adopter, willing to showcase a proven technology, adapted for the North American Market.
The WE&RF LIFT initiative has been a great platform to not only inform end-plant owners of the technology’s capabilities, but also to directly connect GE as the technology supplier with end-users. GE is hopeful that a full-scale installation in North America will be realized in the next 18 months.Michael Theodoulou, P. Eng.Senior Product ManagerGE Power Water & Process Technologies