An integrated Pulp & Paper mill located in the United States operates an Activated Sludge Wastewater Treatment Plant (WWTP) treating ~ 18.0 MGD. The mill often experiences spike loadings, which negatively impacts WWTP performance and effluent quality, which may translate into a violation of state and NPDES regulatory permit limits. The result is permit compliance concerns plus high operational and energy costs due to increased aeration. The mill required a cost effective solution to optimizing the onsite WWTP performance inconsistencies and streamline operational costs. Six BioGenerators were installed and discharged into the main line feeding the Activated Sludge Basin. The BioGenerators generated and injected 31 trillion beneficial bacteria into the wastewater treatment plant 6 times per day (186 trillion bacteria/day).
By way of a 30-month data comparison, during the 9-month period that the BioGenerator technology was online, the average daily effluent Ammonia was reduced to 1,020 PPD versus an average without the units of 2,152 PPD (refer to Figure I) which represents 100% routine compliance. We must point out that the average influent Ammonia during 2006 and 2007 was 11,566 PPD. Additionally, BOD removal with the units online averaged 91%. Lastly and most significantly, the daily Kilo Watt Hour (KWH) rate, measuring energy usage primarily generated from aeration equipment, was reduced by a daily average of 3,083 KWH. The average daily KWH consumed with the units offline was 48,284. Power consumption with the Biogenerators online, equaled 45,201KWH (please refer to Figure II).
Through the use of the BioGenerator technology, the mill achieved lower energy usage, representing an annual return on investment in excess of US$100,000 while allowing for an increase in removal efficiencies and consistent regulatory compliance.
For more information regarding our BioGenerator Technology and the beneficial bacteria employed, please contact Monmouth BioProducts at 570-325-5013.