Water

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 […]

Times have changed. Not long ago, baseload units came online and went straight to full load for days on end. Now, those same units are being asked to cycle operations to accommodate for variable renewable

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

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 […]

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

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

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

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 […]

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 […]

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 […]