Algae Control in New Jersey Raw Water Reservoir

Four solar-powered algae control buoys were installed in the Canoe Brook Reservoir #1 in Short Hills, NJ to assess the impact of the system for controlling algae and cyanobacteria in the raw water reservoir. The four buoys operated for five months in the spring/summer 2014. 

 

The Challenge: Address Episodic Taste and Odor Events

The primary objective of this project was to reduce algae concentrations with secondary objectives to reduce the concentration of taste and odor causing compounds in the reservoir water and also to increase the efficiency of the plant by decreasing chemical doses and increasing filter run times.

The Solution: Monitor, Predict and Control Algal Blooms

As an alternative to copper-based algaecides, the use of ultrasonic treatment can be used to control algae. Ultrasonic treatment uses high frequency sound waves to attack the algal cells. The treatment is widely used in commercial and residential applications but is relatively new for municipal raw water reservoirs.

The Results: Reduction of Chemical Consumption, Odor and Taste Problems

Extensive testing conducted during 2014 showed that the buoys had a significant impact on the algae, reducing algal counts, raw water turbidity and total organic carbon in the water. This improved water quality, enabled the plant operations staff to reduce coagulant consumption by more than 20 percent and reduced the concentration of undesirable T&O-causing compounds in the raw water entering the plant.

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, and reducing the concentration of undesirable taste and odor causing compounds in the treated water delivered to customers”.

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Applied Product for this project

LG Sonic MPC-Buoy

MPC-Buoyで藻類を抑制処理・モニタリング

超音波による藻類抑制処理ソリューション一式

    • リアルタイムで水質データを送信するセンサーパッケージ
    • 湖沼・ダム・貯水槽の藻類を抑制処理
    • 1台で直径500m範囲まで処理が可能
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