Application:
Raw Water
Keywords:
Georgia, raw water, lake, blue-green algae, manganese, iron, THM/HAA, taste and odor, hypolimnetic oxygenation, treatment savings
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SolarBee at work
Reservoir Size:
Man made reservoir of 48 acres.
SolarBee Installation:
Date: June 2005: Installed two (2) SB10000v12 units – one unit placed in the center for algae control with intake set above the thermocline, and the second unit deployed near the water intake to the WTP with the intake set deep for keeping water entering the WTP oxic for manganese control.
Project Objectives:
The objectives for installing SolarBees in the reservoir are to reduce levels of iron and manganese entering the treatment plant, eliminate the need for chemical treatments to control algal blooms, and improve digestion of organics in the reservoir for long-term improvement in levels of THMs (trihalomethane) and HAAs (haloacetic acid).
Project Results:
During the first summer, manganese concentrations coming in to the WTP dropped from approximately 3 mg/L to about 0.3 mg/L. After fine-tuning intake hose depths, manganese concentrations dropped even further to < 0.1 mg/L. Blue-green algae bloom control has also been achieved with excellent results, including the absence of taste and odor complaints since installations and eliminating the need for costly toxic chemicals applications or grid-powered aeration.
Last updated at: 2009/12/10
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