VOLUME 59

 SUSTAINABILITY CONNECTION 

 

To keep a lamp burning we have to keep putting oil in it.

 

-Mother Teresa

 
As a customer of the Tennessee Department of Environment and Conservation, we value your feedback! We would appreciate it if you would take 5-10 minutes to fill out our customer service survey. You may choose to remain anonymous, and your responses will be used to help determine what we are doing well and what opportunities we have for improvement. This survey may also be found on our website at any time.

 

Click Here to take the survey.

  U.S. Zinc Upgrades Tennessee Plant

 

                                                           

Rubbernews.com recently reported on a new expansion for a Tennessee company in Clarksville, TN.

 

U.S. Zinc Corp. has completed the expansion of its zinc oxide plant in Clarksville, Tenn., increasing zinc oxide production by 8,000 metric tons per year. 

The firm would not release financial details of the project, but it said the expansion brings the total capacity at the facility to 43,000 metric tons per year and added 10 jobs to its current work force of 60. 

"We've been in the market for more than 50 years," said U.S. Zinc President Rodrigo Daud. "Producing zinc oxide is in our DNA. We want to make our customers comfortable with the supply and demand factor. We did the expansion in order to guarantee that our customers can continue to receive the best products and service possible." 

The Clarksville expansion is phase one of the company's North American zinc oxide expansion project. Phase two involves expanding capacity of the company's Millington, Tenn., zinc oxide plant. Engineering work has begun, and the firm said phase two is expected to be complete by the end of 2014. 

Phase two also will add 10 jobs to the Millington site. Daud said the facility's current capacity is 25,000 tons. U.S. Zinc said it will increase its global capacity by 17,000 tons to 140,000 when both expansions are complete. 

"With the recent tightening of zinc oxide supply, customers need new capacities to meet their needs," Tracy Baugh, U.S. Zinc commercial vice president, said in a statement. "Our expansion project allows us to streamline processes for improved efficiency and reliability. This results in providing customers with high quality products with better reliability and service." 

Phase one began in July and involved expanding the physical space, hiring employees and installing new equipment at Clarksville. The equipment additions and upgrades allow the use of secondary raw materials as a major feedstock, furthering the company's commitment to recycling. 

Daud said Clarksville is going to run with 100 percent recycled material, and the facility will commit to recycle as much as it can. 

Headquartered in Houston, U.S. Zinc is a worldwide manufacturer, recycler and supplier of zinc oxide, zinc dust, zinc metal and zinc fines with plants in North America, South America and Asia.

 

LED at Thompson-Boling Arena

                  
Tennessee Today recently reported on updated lighting technology installed in a major sporting and concert venue on campus.
  

With the installation of LED fixtures, UT's Thompson-Boling Arena is one of the first in the world to feature lights that are smaller, brighter, and up to 85 percent more efficient than conventional arena metal halide lights.

 

The technology-developed and manufactured by Oak Ridge-based LED North America at the Tech 20/20 incubator facility in Oak Ridge, incorporating an Oak Ridge National Laboratory technology, and installed by Knoxville-based Bandit Lites-is being "premiered" at the state's research university inside the largest on-campus single-sport arena in the country.

 

The light-emitting diode fixtures use an ORNL-developed lightweight graphite foam that cools the LED, making them more efficient and reliable. This enables ninety 400-watt LED fixtures to bathe the arena's floor with 200 foot-candles per square foot, compared to the 130 foot-candles produced by the arena's existing 110 1,100-watt fixtures.

 

LED North America's SuperSport luminaires have the potential to revolutionize sports and entertainment venues worldwide. UT officials are looking forward to participating in this effort and to seeing the results-and the savings.

 

"We are happy to be a partner in this venture and to work with the lab and local business on an energy initiative that could impact facilities across the world," said Jeff Maples, senior vice chancellor for finance and administration.

 

The installation of the lights, guaranteed to meet the NCAA, NBA, and NHL foot-candle requirement, was completed last week.

 

"The success of these lights will be a game changer," Andrew Wilhelm, president of LED North America, said. "UT is positioned to start a trend that could spread to arenas everywhere in a few years."

 

UT was a test site for the lights at no cost to the university. The lights, which can be dimmed and brought to full intensity in seconds, were installed on a small scale for testing during UT's summer sports camps. The light quality was measurably superior and will also allow Thompson-Boling Arena to meet the new high-definition television broadcast standard.

 

Bandit Lites is installing the lights, which will be mounted under the catwalk without affecting the current game lights, allowing for operational and performance testing during the basketball season.

While LEDs produce a tremendous amount of light despite their compact size, they generate considerable heat and are prone to failure if not adequately cooled. ORNL's graphite foam, which is more conductive than aluminum and one-fifth the weight, provides a solution by almost instantaneously pulling heat from the lights.

 

The graphite foam technology has allowed LED North America to eliminate the traditional heavy aluminum heat sink and produce the SuperSport luminaire, which weighs twenty-two pounds. By comparison, other arena fixtures weigh more than 100 pounds.

 

In addition to its light weight and greater efficiency, the SuperSport luminaire has a built-in microprocessor to control individual lights. This allows arena lighting operators to simply click an icon on a tablet to instantly switch to various presets to accommodate basketball, volleyball, concerts, and other activities.

 

LED North America lights similar to the SuperSport are already being used at a facility that handles logistics for Nissan as well as at other indoor commercial warehouse buildings.

 

LED North America, founded in 2008, is located in the Tech 20/20 building, an incubator facility for ORNL with an objective to create and accelerate the development of high-growth potential companies and jobs by capitalizing on the region's unique technology resources. 

 

 
  City of Knoxville Shows Reduction in Energy Use and Emissions

 

 

Staff at Go Green East Tennessee recently wrote about the progress the city of Knoxville has made in sustainability. 

 

The latest updates from the city of Knoxville's Office of Sustainability show reductions in emissions and energy use both for city operations and the community as a whole.

 

The city's Energy and Sustainability Initiative, now in its seventh year, measures energy savings and greenhouse gas emission reductions through sustainability improvements for Knoxville. The eventual goal is a 20 percent reduction by 2020.

 

As a municipality, the city reduced its energy consumption by 6.5 percent. Greenhouse gas emissions associated with city operations fell 13 percent.

 

At the community level, the emissions associated with energy use, transportation and waste management fell 7.8 percent from 2005 levels.

 

"These savings reflect the success of projects like the city's conversion of traffic signals to LED technology and energy efficiency upgrades at city buildings," said Jake Tisinger, Project Manager for the Office of Sustainability, in a press release. "Residents and businesses are using less energy than in 2005, and improved fuel economy and cleaner electricity generation have helped reduce greenhouse gas emissions."

 

Mulching and recycling of waste has increased nearly 13 percent since 2005 with much of that attributed to the residential curbside recycling program.

 

An updated Work Plan explains how the city will continue to build on this progress. The report proposes several new projects in categories from community engagement to urban agriculture and sustainable growth.

 

Some of the new projects:

--Launch Neighborhood & Workplace Engagement programs that motivate residents and businesses to take actions to advance sustainability goals.

--Expand capacity for commercial recycling collection in downtown business district and expand curbside recycling program to all residential areas.

--Offer recycling at all city parks starting this spring.

--Develop an Urban Food Overlay, city gardening lease, or a similar
policy framework to facilitate urban agriculture and cultivation of
unused city-owned land.

--Work with local partners to launch a public bike sharing program

 

      

                          

The Tennessee Governor's Environmental Stewardship Awards are the most prestigious environmental and conservation awards in the state. For more than 25 years, the awards have been presented to individuals and organizations making significant contributions to the protection and improvement of our natural resources and wildlife.

 

The awards are designed to bring about a greater knowledge and awareness of effective practices and projects and to give proper recognition to those persons and organizations that make outstanding contributions to the natural resources of their community and the state.

 

 

Nominations will open January 1, 2014 and be accepted until March 31, 2014.

 

Click on the above logo for more information. 

Did You Know?
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TDEC Office of Sustainable Practices