The addition of air or oxygen is frequently used as a lake management option for lakes suffering from oxygen depletion. When used properly, aeration/oxygenation can increase oxygen concentrations in the water column, decrease sediment nutrient release, minimize iron and manganese concentrations, and prevent fish kills. In some cases, aeration/oxygenation can also reduce the severity of algal and cyanobacterial blooms. These systems can be designed to provide complete mixing throughout the water column, to increase oxygen concentrations in the hypolimnion without mixing the lake, or to aerate surface waters and provide aesthetic appeal. Improperly designed or installed aeration systems can increase algal growth and lead to decreased water clarity. The workshop will discuss the pros and cons of aeration systems, describe factors that must be considered to properly design aeration/oxygenation systems, and present case studies for both successful and unsuccessful applications.
Presenters Chris Holdren is a life member of NALMS and has over 50 years of experience with lake and watershed management projects. He has worked on a number of aeration projects, some successful and others not for various reasons. Alex Horne, Emeritus Professor, University of California-Berkeley has worked on over 600 water-related projects throughout the world. Many of Dr. Horne’s projects included additions of oxygen or air to meet various objectives. Kevin Bierlein is an engineer with Hydros Consulting. Dr. Bierlein has over a decade working with various types of oxygenation and mixing systems. Ed Molesky is the President of Aqua Link and Hydro Logic Products. Aqua Link a consulting firm specializing in pond and lake management and restoration and Hydro Logic Products manufactures its own line of pond and lake aeration equipment.Reservoir Environmental Management, Inc. (REMI) specializes in the development and application of river and reservoir models to aeration/oxygenation projects in hydropower reservoirs.
Chris Holdren is a life member of NALMS and has over 50 years of experience with lake and watershed management projects. He has worked on a number of aeration projects, some successful and others not for various reasons.
Alex Horne, Emeritus Professor, University of California-Berkeley has worked on over 600 water-related projects throughout the world. Many of Dr. Horne’s projects included additions of oxygen or air to meet various objectives.
Kevin Bierlein is an engineer with Hydros Consulting. Dr. Bierlein has over a decade working with various types of oxygenation and mixing systems.
Ed Molesky is the President of Aqua Link and Hydro Logic Products. Aqua Link a consulting firm specializing in pond and lake management and restoration and Hydro Logic Products manufactures its own line of pond and lake aeration equipment.