Water
-
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
-
Legal & Regulatory
Dominion Ordered to Revise Plan for Coal Ash at Chesapeake
A spokesman for Dominion Energy said the company will begin working on a new plan for dealing with leaking piles of coal ash at a retired coal plant in Virginia after a federal judge ruled the company’s current remediation at the site is not acceptable. U.S. District Judge John Gibney Jr. on July 13 ordered […]
Tagged in: -
Renewables
Researchers Develop Hybrid Salinity Gradient Power Technology
A hybrid technology created by researchers at Penn State University could be the breakthrough needed to advance efforts to produce power based on the salt concentrations between two water sources. Researchers
Tagged in: -
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
Tagged in: -
O&M
How to Prevent Circulating Water Flow Reversal
Flow reversal in piping systems can degrade equipment performance and cause significant water hammer, potentially resulting in catastrophic failure. Power plant condenser cooling water systems—or circulating
-
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 […]
Tagged in: -
Legal & Regulatory
Trump Orders WOTUS Rule Rewrite
An executive order signed by President Donald Trump on February 27 authorizes the Environmental Protection Agency (EPA) to rewrite a contentious rule asserting federal authority over small bodies of water. The Waters of the U.S. (WOTUS) rule, also known as the “Clean Water Rule,” finalized by the EPA and the U.S. Army Corps of Engineers […]
Tagged in: -
Water
Lowering Cost and Waste in Flue Gas Desulfurization Wastewater Treatment
Many informative articles have been published about options for treating flue gas desulfurization wastewater, but new technologies are rapidly changing the treatment possibilities. This article reviews key economic considerations and introduces an innovative treatment solution that lowers costs and the amount of waste generated. Flue gas desulfurization (FGD) wastewater varies widely depending on the source […]
-
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. […]
Tagged in: -
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
Tagged in: