A World of Opportunity for Within Water-Body Management, a Needed but Neglected Complement to Watershed Management Policy
NALMS 2010 - Cox Convention Center, Oklahoma City, Oklahoma - November 2010Slides cover the State of Freshwater Impairment & Eutrophication, Current US Legislation & Policy, Opportunities for Within Water-Body Management, and Legislation & Policy Needs.
Climate Change Stimulates Freshwater Harmful Algal Blooms (FHABs): A Within Water-Body Management Solution
Water & Health: Where Science Meets Policy - UNC at Chapel Hill - October 2010Slides cover Water Quality, Eutrophication & FHABs, FHAB Stimulatory Factors & Global Climate Change, Solar Powered Circulation (SPC), Falls Lake Watershed Plan - Can we do better?, Possible SPC mechanisms of FHAB Suppression, Problematic Applications (Learning Experiences).
Improving Wastewater Oxygenation & Mixing Efficiency with Solar Powered Circulation
WEFTEC 2010 - Ernest N. Morial Convention Center, New Orleans, Louisiana - October 2010Slides cover the problem - mixing with aeration is inefficient, US EPA preliminary data, and the current study.
Managing Water as One: Breaking Down the Silos to Advance a Sustainable National Water Policy
Water & Health: Where Science Meets Policy - UNC at Chapel Hill - October 2010Discussion of the need for an organization that could bring together major water stakeholders to look at the issue of water more broadly and how the Clean Water America Alliance fills this role.Improving Wastewater Oxygenation & Mixing Efficiency with Solar Powered Circulation
ICEST, Houston, TX - July 2010Oxygenation and mixing are required in many municipal and industrial wastewater treatment plants (WWTPs) to improve processing and shorten treatment durations. WWTPs often use mechanical aerators to both oxygenate and mix wastewater. However, much more aeration is needed to thoroughly mix than oxygenate the wastewater. Excessive horsepower (HP) usage for mixing increases electrical grid-power consumption, operational costs and greenhouse gas emissions.
Freshwater Harmful Algal Bloom Suppression: Solar-Powered Circulation and Current U.S. Policy
ICEST, Houston, TX - July 2010The increasing incidence and durations of toxigenic Freshwater Harmful Algal Blooms (FHABs), threaten human and animal health, aquatic-ecosystem sustainability and economies. Successfully confronting the risks of FHABs requires effective and environmentally sustainable methods for bloom prevention. The U.S. Environmental Protection Agency (EPA) has not established FHAB-prevention policy. Relevant EPA and other Agency activities are heavily weighted toward limiting nutrient input to freshwater through soil conservation and watershed management practices.
Climate Change Stimulates Freshwater Harmful Algal Blooms (FHABs): A Within Water-Body Management Solution
Winston-Salem, NC - May 2010The increasing incidence and durations of toxigenic FHABs threaten human and animal health, aquatic ecosystems and economies. Climate change is partially driving the increase through rising temperatures, excessive nutrient input to waterbodies during severe stormwater runoff, and water stagnation during prolonged droughts. Prolonged expenditures of $1B+/yr on watershed management failed to halt the increase. Environmentally sustainable within-waterbody management solutions are needed to suppress FHABs.
Legislation Discussion: U. S. EPA & a Freshwater Harmful Algal Bloom Research & Control Plan
Society for Environmental Toxicology and Chemistry (SETAC), Human-Environment Interactions: Understanding Change in Dynamic Systems, New Orleans, Louisiana - November 19-23, 2009U.S. Congressional legislation is needed to establish a National Freshwater Harmful Algal Bloom (FHAB) Research Plan. The U.S. Environmental Protection Agency (EPA) has purview over all U.S. freshwater bodies, but has not made regulatory determinations or established Federal policy due to FHAB data deficiencies. A clear Congressional directive, the proposed Freshwater Harmful Algal Bloom Act of 2009 (FHAB Act), is needed to establish a National FHAB Research Plan for obtaining FHAB data.
Freshwater Harmful Algal Bloom (FHAB) Suppression through Solar-Powered Circulation (SPC)
Society for Environmental Toxicology and Chemistry (SETAC), Human-Environment Interactions: Understanding Change in Dynamic Systems, New Orleans, Louisiana - November 19-23, 2009The increasing incidence and durations of toxigenic Freshwater Harmful Algal Blooms (FHABs), threaten human and animal health, aquatic ecosystems and economies. Successfully confronting the risks of FHABs requires ecologically benign and environmentally sustainable methods for bloom suppression. The current study evaluated the ability of solar-powered circulation (SPC) of the epilimnion to suppress FHABs.
Satellite Multispectral & Planktonic Evidence of Freshwater Harmful Algal Bloom (FHAB) Suppression through Solar-Powered Circulation (SPC)
NALMS Annual Symposium - October 28-30, 2009The increasing incidence and durations of Freshwater Harmful Algal Blooms (FHABs), primarily caused by potentially toxigenic cyanobacteria, threaten human health, aquatic ecosystem sustainability and economies. Successfully confronting the risks of FHABs requires cost effective and ecologically benign methods for early detection and suppression of blooms. The current study evaluated the potential of satellite-detected multispectral signals (SMSs) of phycocyanin to serve as early indicators of FHABs, and of solar-powered circulation (SPC) in surface waters to suppress FHABs.
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