Oak Ridge Today

TVA releasing more water from Norris Dam, increasing flow on Clinch River

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Norris Dam is pictured above on Monday, Feb. 12, 2018. (Photo by Tennessee Valley Authority)

Norris Dam is pictured above on Monday, Feb. 12, 2018. (Photo by Tennessee Valley Authority)

 

The Tennessee Valley Authority on Wednesday said it is releasing more water out of Norris Dam, increasing high river flows on the Clinch River, which flows past Oak Ridge.

“Because of more heavy rain in the forecast, water releases out of Norris Dam will increase today to 135,000 gallons per second,” TVA said Wednesday.

TVA has been posting updates on social media about the recent rains and their impact on reservoirs, rivers, and dams. [Read more…]

Council wants to roughly triple proposed water rate at ORNL, Y-12

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Oak-Ridge-Water-Treatment-Plant-2009-1

The Oak Ridge Water Treatment Plant is pictured on Pine Ridge above the Y-12 National Security Complex. (Photo by City of Oak Ridge)

 

Note: This story was updated at 6:50 p.m.

Some Oak Ridge City Council members have questioned whether the federal government is paying enough for municipal water at Oak Ridge National Laboratory and Y-12 National Security Complex, and on Monday, four of them proposed roughly tripling a potential new high-volume water rate at the two federal sites in 2017.

The new water rate would apply to water consumption over 20 million gallons per month, which would limit it to ORNL and Y-12. The two sites use a total of more than 100 million gallons of water per month.

The new rate is expected to go into effect in April 2017 only if Oak Ridge and the U.S. Department of Energy aren’t able to agree on a contract for water at ORNL and Y-12 by the end of March. Those two federal sites now pay a flat annual rate but could default to what is known as a retail rate if the contract lapses.

The city staff had proposed a new default rate of $1.08 per thousand gallons for consumption over 20 million gallons starting January 1, 2017. The following year, in 2018, the staff had proposed a $1.35 rate.

But four City Council members—Rick Chinn, Charlie Hensley, Trina Baughn, and Chuck Hope—voted to raise the $1.08 rate in 2017 to $3 per 1,000 gallons. Oak Ridge Mayor Warren Gooch, Mayor Pro Tem Ellen Smith, and Council member Kelly Callison voted against the increase. [Read more…]

ORNL researchers discover new state of water molecule

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berylCoverImage_horz

ORNL researchers discovered that water in beryl displays some unique and unexpected characteristics. (Photo by Jeff Scovil)

 

Neutron scattering and computational modeling have revealed unique and unexpected behavior of water molecules under extreme confinement that is unmatched by any known gas, liquid, or solid states.

In a paper published in Physical Review Letters, researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory describe a new tunneling state of water molecules confined in hexagonal ultra-small channels—5 angstrom across—of the mineral beryl. An angstrom is 1/10-billionth of a meter, and individual atoms are typically about 1 angstrom in diameter.

The discovery, made possible with experiments at ORNL’s Spallation Neutron Source and the Rutherford Appleton Laboratory in the United Kingdom, demonstrates features of water under ultra confinement in rocks, soil, and cell walls, which scientists predict will be of interest across many disciplines.

“At low temperatures, this tunneling water exhibits quantum motion through the separating potential walls, which is forbidden in the classical world,” said lead author Alexander Kolesnikov of ORNL’s Chemical and Engineering Materials Division. “This means that the oxygen and hydrogen atoms of the water molecule are ‘delocalized’ and therefore simultaneously present in all six symmetrically equivalent positions in the channel at the same time. It’s one of those phenomena that only occur in quantum mechanics and has no parallel in our everyday experience.” [Read more…]

City approves water contract extension for Y-12, ORNL, but DOE rates questioned

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Oak-Ridge-Water-Treatment-Plant-2009-1

The Oak Ridge Water Treatment Plant is pictured on Pine Ridge above the Y-12 National Security Complex. (Photo by City of Oak Ridge)

 

Note: This story was last updated at 9 a.m. March 30.

The Oak Ridge City Council on Tuesday approved a one-year, $2.1 million contract extension for water supplied to Oak Ridge National Laboratory and Y-12 National Security Complex, but a few members questioned whether the U.S. Department of Energy is paying a fair rate.

The one-year extension is expected to give the city time to have a qualified third-party engineering firm study the city’s aging water plant on Pine Ridge above Y-12, consider what is needed, and develop options that could help Oak Ridge decide whether to renovate the 70-year-old facility—or build a new one at a new site.

City officials said bringing the existing plant up to code could cost $16 million or more. It was transferred to the city from DOE in 2000, more than 15 years ago. Officials declined to estimate how much it could cost to build a new one, although it’s also said to be in the multi-million-dollar range.

Among the challenges at the water plant now are a leak of 3,000 gallons per day. The city staff is not sure where the leak originates or whether the water that is leaking has already been treated, and so far they haven’t been able to stop the leak. [Read more…]

Water advisory sent to wrong Clinton; city says water clean, safe to drink

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Clinton City Manager Roger Houck on Sunday said an apparent misrouting of information may be the reason at least one city resident received a “Notice of Water Advisory” this weekend.

“We have confirmed that the Web address and phone information included in the advisory is for Clinton, Utah…not Tennessee,” Houck said in a press release. “When you go to the Utah website, you will see that they, indeed, have issued an advisory for their area.”

A woman who lives on Mariner Point Drive in Clinton, Tennessee, told officials that she received an email and a phone call saying that local water samples had tested positive for E. coli, and customers should assume the water is unsafe to drink unless it is boiled. [Read more…]

ORNL-led team demonstrates desalination with graphene membrane

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Nature Nanotech Pores

Researchers created nanopores in graphene (red, and enlarged in the circle to highlight its honeycomb structure) that are stabilized with silicon atoms (yellow) and showed their porous membrane could desalinate seawater. Orange represents a non-graphene residual polymer. (Source: Oak Ridge National Laboratory, U.S. Department of Energy)

 

By Dawn Levy

Less than 1 percent of Earth’s water is drinkable. Removing salt and other minerals from our biggest available source of water—seawater—may help satisfy a growing global population thirsty for fresh water for drinking, farming, transportation, heating, cooling, and industry. But desalination is an energy-intensive process, which concerns those wanting to expand its application.

Now, a team of experimentalists led by the U.S. Department of Energy’s Oak Ridge National Laboratory has demonstrated an energy-efficient desalination technology that uses a porous membrane made of strong, slim graphene—a carbon honeycomb one atom thick. The results are published in the March 23 advance online issue of Nature Nanotechnology.

“Our work is a proof of principle that demonstrates how you can desalinate saltwater using free-standing, porous graphene,” said Shannon Mark Mahurin of ORNL’s Chemical Sciences Division, who co-led the study with Ivan Vlassiouk in ORNL’s Energy and Transportation Science Division.

“It’s a huge advance,” said Vlassiouk, pointing out a wealth of water travels through the porous graphene membrane. “The flux through the current graphene membranes was at least an order of magnitude higher than (that through) state-of-the-art reverse osmosis polymeric membranes.” [Read more…]

Electric, Public Works directors at Lunch with League on Tuesday

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Jack Suggs

Jack Suggs

Submitted

As we go about daily life in Oak Ridge, we don’t ordinarily think about where wastewater goes or where the electricity we use comes from. When the monthly utility bill arrives from the City of Oak Ridge, the cost of electricity, water, and sewer may surprise us and make us wonder about the cost and changes in rates.

Gary Cinder, director of Oak Ridge Public Works, and Jack Suggs, Oak Ridge Electric Department director, will be the guest speakers at Lunch with the League on Tuesday, February 3, and they will provide insights into their departments’ activities and responsibilities. The program will be held at noon Tuesday in the Social Hall of the Oak Ridge Unitarian Universalist Church’s new location at 809 Oak Ridge Turnpike. [Read more…]

Reminder: Fundraiser for Secret City Wildbots features award-winning film on world’s water

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Sling Shot Press Release

A film screening this month will feature an inspirational movie about a tiny technological solution that could be used to clean up the world’s water supply. The screening of the award-winning documentary will also raise money for the Oak Ridge High School’s FIRST Robotics Team 4265, the Secret City Wildbots.

The fundraiser and screening will start at 7 p.m. Friday, February 20, in the Oak Ridge High School Performing Arts Center, a press release said. The Secret City Wildbots will begin the evening with a short demonstration of the team’s robot from 7-7:20 p.m. The screening of the 97-minue film will begin promptly at 7:30 p.m. [Read more…]

TVA: Kingston Ash Recovery Project follows new EPA guidelines

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TVA Kingston Fossil Plant Dike C Reinforcement

Photo courtesy TVA

 

U.S. Environmental Protection Agency guidelines for coal combustion products released on Friday are consistent with work the Tennessee Valley Authority has already done at the Kingston recovery project, the public utility said in a press release.

“TVA is already making substantial changes in the way we work with coal combustion products, including coal ash and gypsum, said TVA President and Chief Executive Officer Bill Johnson. “This included committing an estimated $2 billion to convert all our coal fleet impoundments from wet to dry storage. While recognizing the significant potential for beneficial reuse of ash and other products, we agree it needs to be handled and stored safely.”

The project area surrounding the Kingston Fossil Plant near Harriman is in the final restoration stage following the coal ash spill in December 2008. It was the largest ash spill in U.S. history. [Read more…]

TVA: Kingston Ash Recovery Project nears completion

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TVA Kingston Fossil Plant Dike C Reinforcement

TVA Kingston Fossil Plant Dike C reinforcement (Photos courtesy TVA)

 

The Tennessee Valley Authority is in the final stages of the Kingston recovery project. The public utility says it’s fulfilling a promise to restore the area surrounding the Kingston Fossil Plant near Harriman following the coal ash spill in December 2008, the largest ash spill in U.S. history.

A major milestone was reached in early December, with the completion of the cover for a 240-acre permanent ash retention landfill. The new landfill, which has been fortified with an underground earthquake-resistant wall anchored in bedrock, is covered by a flexible-membrane liner and geo-composite fabric, two feet of clay, topsoil, and grass.

“We all know this incident shouldn’t have happened,” said TVA President and Chief Executive Officer Bill Johnson, who visited the recovery site on December 17. “But we have learned from it and we are fulfilling our commitment to making it right.”

TVA says it’s also keeping its promise by returning the Emory River and surrounding waterways to pre-spill conditions, reforesting and adding vegetation to surrounding land, stabilizing shorelines, and adding wetlands and other wildlife habitats. TVA has opened Lakeshore Park, which features 32 acres of walking trails, fishing piers, a boat ramp, and docks. [Read more…]

Oliver Springs, Rocky Top receive grants for water, sewer system improvements

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Governor Bill Haslam

Bill Haslam

State officials announce 80 Community Development Block Grants

Oliver Springs received a $525,000 grant for sewer system improvements, and Rocky Top (formerly Lake City) received a $360,840 grant for water system improvements, Tennessee officials announced last week.

Oliver Springs and Rocky Top were among the Tennessee communities that will receive funding after Tennessee Governor Bill Haslam and Economic and Community Development Commissioner Bill Hagerty approved more than $28 million in Community Development Block Grants (CDBG) to help with infrastructure, health and safety projects, and downtown improvements, a press release said.

The Oliver Springs grant will be matched with $225,000 in local funding (for $750,000 in total funding), and the Rocky Top grant will be matched with $27,160 in local funding for a total of $388,000. [Read more…]

Aqua Power fall session starts Sept. 8

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The Oak Ridge Recreation and Parks Department aquatic exercise program, Aqua Power, will start its fall session September 8.

The instructor is Janice Greenwood, who holds numerous certifications in exercise programs, a press release said. This program is geared toward participants who wish to receive a workout in the water; individuals will be encouraged to work at their own pace and participants do not have to be able to swim or get their hair wet.

Classes will be held on Monday and Wednesday evenings from 7:30-8:30 p.m. The fee is $42 for a six-week session or $5 per class. [Read more…]