WE SOLVE ODOR!
Control H2S - Increase Biogas Production
Reduce Sludge Yield/Increase Capacity/Control Foam
sludge & foodwaste
Springfield Missouri Municipal WWTP operates a three-stage anaerobic digester system that receives 250,000 gallons of sludge from their 45 MGD WWTP and 20,000-36,000 gallons of food waste per day. Biogas generated by digesters is used to generate electricity for the WWTP and heat for the digesters.
Recent challenges faced by plant operators include:
SciCorp Plan & Implementation
SciCorp anaerobic digestion specialist Engineers met with Springfield plant management staff and reviewed plant performance data and operation challenges faced by operators.
SciCorp Engineers recommended a 3-month trial to treat the entire anaerobic digester system. They recommended a daily dos of 40 gal/day of BIOLOGICTM SR2 to be added to the acidification hydrolysis anaerobic reactor that would feed 4 primary digesters which then feed into one polishing digester.
The plant management agreed to a shared financial risk approach to demonstrate and verify the benefits of using BIOLOGICTM SR2.
Within the time frame of the trial:
H2S content in biogas was reduced by 55%
Ammonia levels dropped by 12%
Foam layers were reduced to less than 12 inches from 12ft
VS destruction efficiency increased by more than 10%
Biogas production per kg VS feed to digesters increased by 30%+
H2S in digested cake decreased significantly
Need for supplementary gas was eliminated
Need for ferric chloride potentially eliminated
Other benefits realized:
potential for increasing organic load to digesters
Odor issues decreased significantly from digester system, sludge processing and general plant operations
Sludge yield (kg/TS / kg BOD + TSS influent from WWTP) decreased by 25-30% due to recirculation of centrate containing BIOLOGICTM SR2 to headworks of plant thereby reducing sludge generation from aerobic plant
Sludge mass requiring processing disposal decreased by 25%
Use of BIOLOGICTM SR2 demonstrated net positive cost benefit for plant operations
Reduction in H2S
Reduction in odor complaints
Reduction of foam
Increase in biogas
production kg VS