Like many wastewater treatment facilities across the country, Joint Meeting of Essex and Union Counties (JMEUC), an 85 MGD facility, was looking to increase their digester gas production. They were introduced to BAE, and a protocol was developed to feed the digesters at a rate of 27 gallons per day. After extensive analysis, not only did JMEUC benefit from a 41% increase in digester gas production and the cost avoidance of electrical energy as a result, but they also reduced the amount for sludge cake for removal and significantly decreased the amount of TSS returned to treatment.
The result is a net annual savings of $402,000.
It is also projected that as the JMEUC brings its 4th digester back into service, the facility will benefit from even greater savings as a result of additional power production and impacts to solids handling processes and disposal.
Joint Meeting of Essex & Union Counties
BAE has been an invaluable tool for our WWTP, increasing our biogas production for reuse onsite and decreasing our energy demand on utilities. I’d highly recommend BAE to fellow wastewater treatment professionals.
Since implementing the use of BAE® in the digester, Landis Sewerage Authority (LSA) has vastly improved not only digester performance, but also increased the efficiency of the CHP system. The EPA recognized the results of this outstanding performance and awarded LSA with the EPA 2010 ENERGY STAR Award.
Executive Director, Landis Sewerage Authority
Hayward Water Pollution Control Facility (HWPCF) treats an average dry weather daily flow of 11.9 MGD, with peak daily flows averaging 18.5 MGD. An independent third party was brought in to validate the benefits of BAE® and perform an in depth review of the data and relative equipment. All inconsistencies were taken into account and extracted from the provided data. The resulting conclusion shows a positive effect. The addition of 6 gallons per day of BAE® from May 23, 2011 to December 31, 2011 significantly increased the production of biogas by 36%, which in turn resulted in an increase of kWh generated on-site by the engines. In addition, a substantial decrease in volatile solids was noted.
Hayward Water Pollution Control Facility
The Cumberland County Utility Authority (CCUA) began using BAE in their primary anaerobic digester because they were having difficulty maintaining the minimum volatile solids destruction (VSD) of 38% required by the NJDEP for land applying sludge.
BAE had clearly demonstrated that a balance between the acid formers and methane formers had been created and a stimulating effect was taking place within the primary digester, improving the performance of the two-stage secondary digester. Dewatering by the plants centrifuge machine improved, receiving digested sludge as high as 6% creating a dewatered cake at 25 to 28%.
Cumberland County Utilities Authority
BAE is benefiting communities everyday. Read six brief summaries of BAE at work in our Renewable Energy Brochure.
BAE & Renewable Energy Production