Eliminated chemical usage in the raw water reservoir
From 2014, when the initial Dutch-American collaboration began, until the present moment, there have been many achievements along the way. American Water is the largest and most geographically diverse U.S. public water and wastewater utility.
Initially, American Water needed to control toxic algae and cyanobacteria present in the Canoe Brook Water Treatment Plant in Short Hills, New Jersey. Additionally, it was necessary to eliminate foul odor and taste issues
89% less algae
In algae growth since using LG Sonic ultrasound to control algae.
In the usage of harmful chemicals in the WTP of Canoe Brook.
Return of investment (ROI) of 1.8 years, plus operational savings
The first step towards determining wether LG Sonic’s ultrasound technology would solve the challenges was to conduct extensive research. This was done by installing MPC-Buoy systems within the reservoir and monitoring key water parameters.
Top water experts joined forces to compile a comprehensive report that would bring the American utility one step closer to its desired water quality. Dr. Orren D. Schneider (Water Quality Expert with 30+ years of experience), Dr. Lauren Weinrich (Senior Scientist at Water Research & Development department of American Water), and Scott Brezinski (Water Quality and Environmental Compliance Manager).
In the past, the reservoir had been treated with copper sulfate or Cutrine-Plus (copper ethanolamine complex); hence, the secondary objective of the project was to decrease chemical dosing. It was indeed possible to entirely eliminate algaecide use in the raw water reservoir. As compared to the same time period in 2013, results showed:
Improved DAF effluent turbidity
19% lower combined filter effluent turbidities
127% longer filter runs
83% higher unit filter run volumes
Return of investment
Overall, the use of the MPC-Buoys resulted in OPEX savings of approximately $87,800 (based on projected chemical savings compared to 2013, elimination of copper treatment for the reservoir, and reduced monitoring costs).
In March 2015, American Water and LG Sonic received the Business Achievement Award from Environmental Business Journal (EBJ) for this successful algae control project.
“Extensive testing conducted during 2014 showed that the buoys had a significant impact on the algae, allowing the plant to reduce chemical consumption by more than 20 percent.”