water
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O&M
Design and Care of Reverse Osmosis Systems
Reverse osmosis (RO) systems offer power plant owners and operators a reliable and well-proven water treatment solution. However, designing and caring for an RO system requires a thorough understanding of a
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Legal & Regulatory
SCOTUS Sends Controversial WOTUS Rule into More Legal Limbo
The U.S. Supreme Court unanimously reversed and remanded a rule the Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers rolled out in 2015 that asserts federal authority over small bodies of water with a broader definition of the statutory term, “waters of the U.S.” (WOTUS). In a ruling for National Association of […]
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Legal & Regulatory
EPA Postpones Compliance Dates for FGD, Bottom Ash Transport Requirements in ELG Rule
Steam electric power plants preparing to comply with the Environmental Protection Agency’s (EPA’s) effluent limitations guidelines (ELG) and standards as they concern bottom ash transport water and flue gas desulfurization (FGD) waste streams will get—for now—a two-year reprieve under a new rule the agency finalized on September 12. The ELG rule, which was finalized by […]
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O&M
Closed Circuit Reverse Osmosis System Squeezes Money Savings Out of Water Management
In water-strapped California, managing power plant water usage is more important than ever. Southern California Edison implemented novel closed circuit reverse osmosis systems at five of its gas-fired
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Infographics
Technological Advancements in Cooling Water Treatment
Regulatory agencies are becoming more and more critical of phosphorus-based water treatment chemicals because they can have a negative impact on lakes and waterways. In the past, treating cooling water with
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Renewables
Oroville Dam Power Plant May Reopen This Week
The Edward Hyatt hydroelectric plant at the damaged Oroville Dam in northern California, shut down earlier this month after its spillway nearly collapsed, may reopen soon, officials with the California Department of Water Resources (DWR) said on March 1. The plant was forced to shut down after severe erosion from the dam’s spillway deposited large […]
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O&M
Cooling Towers: Efficiency Waiting to Happen
Cooling towers serve the vital role of cooling water for power plant heat exchange equipment. Sustaining excellent system performance is important because a one-degree increase in water temperature can cause a 2% increase in energy usage. Proper maintenance and a few upgrades could improve a cooling tower’s efficiency, while also saving water in the process. […]
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Water
Using Reclaimed Water in Power Plant Cooling Applications
Using reclaimed water as a makeup supply for cooling tower systems has become a popular option for reducing impacts on local water resources, but it comes with its own challenges because of its unique
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Coal
Reclaimed Water Reduces Stress on Freshwater Supplies
Power generation need not be another source of strain on diminishing freshwater resources. Well-established water reclamation technologies are enabling producers to conserve resources—and money. Meeting the
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Legal & Regulatory
Next-Generation FGD Wastewater Bioreactor Technology Introduced for ELG Compliance
Compliance with one of the latest federal environmental regulations, the Effluent Limitations Guidelines (ELG), can be both costly and complicated. A newly available option offers features and capabilities that may make it a more attractive alternative than conventional approaches. In September 2015, the U.S. Environmental Protection Agency (EPA) finalized a new rule affecting flue gas […]
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