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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.

 

Category: Wastewater

Wastewater


PNNL Researchers Convert Sewage Into Biofuel

Biomass Magazine, Nov. 7, 2016.
http://biomassmagazine.com/articles/13895/pnnl-researchers-convert-sewage-into-biofuel

"It may sound like science fiction, but wastewater treatment plants across the United States may one day turn ordinary sewage into biocrude oil, thanks to new research at the Department of Energy's Pacific Northwest National Laboratory. The technology, hydrothermal liquefaction, mimics the geological conditions the Earth uses to create crude oil, using high pressure and temperature to achieve in minutes something that takes Mother Nature millions of years."

Tapping In to the Cost-Saving Power of VFDs

Business Energy, Sept/Oct. 2016, by Dan Rafter.
http://foresternetwork.com/business-energy-magazine/be-energy/be-energy-management/apping-in-to-the-cost-saving-power-of-vfds/

"What kind of difference can a variable frequency drive—better known as a VFD—make for a municipality? A significant one. Just look at the town of Mooresville in North Carolina, where a VFD developed by Eaton has not only boosted the energy efficiency of the municipal water treatment plant, but has also extended the life expectancy of a pair of new 800-horsepower pumps at the facility."

German [Wastewater] Plant Upgrades Drop Specific Energy Use by More Than 50 Percent

Pumps & Systems, Sept. 2016, by Erkki Lantto & Stefan Wilken.
http://www.pumpsandsystems.com/pumps/september-2016-german-plant-upgrades-drop-specific-energy-use-more-50-percent

"In the city of Sögel, Germany, one municipal wastewater plant employs turbocompressors to reduce its operating costs and cope with load fluctuations. The setup’s success comes from an advanced design with proven magnetic bearing technology and a high-speed motor. The plant treats domestic wastewater and industrial wastewater from nearby food industry factories."

Energy Saving Filters for Wastewater Treatment Created

Science Daily, July 7, 2016, Nanyang Technological University.
https://www.sciencedaily.com/releases/2016/07/160707083312.htm

"Scientists have invented a new type of nanofilter that could reduce the energy needed to treat wastewater by up to five times. This breakthrough technology took about two years to develop and is now being commercialized across Asia."

Battle Water Scarcity by Reusing Industrial Wastewater

Pumps & Systems, May 2016, by Nate Maguire.
http://www.pumpsandsystems.com/pumps/may-2016-battle-water-scarcity-reusing-industrial-wastewater

"Water reuse is the practice of using treated wastewater in non-process applications as a method to conserve water. From automotive and aerospace technology to gas drilling and food and beverage manufacturing, many businesses have integrated water reuse practices into their production processes....  One of the most popular advanced treatment systems is a reverse osmosis program."

How’d They Do It? Montpelier [VT] Team Slashes [Wastewater] Plant Energy Use

Treatment Plant Operator, May 2016, by Doug Day.
http://www.tpomag.com/editorial/2016/05/howd_they_do_it_montpelier_team_slashes_plant_energy_use

"By refusing to be satisfied with established practices, the plant team in Vermont’s capital has slashed energy use and helped the city toward its net zero goal."

New Cogen System Triples Energy Output from Biogas at Oregon WWTP

Biomass Magazine, May 2015, by Katie Fletcher.
http://www.biomassmagazine.com/articles/13229/new-cogen-system-triples-energy-output-from-biogas-at-oregon-wwtp

"On May 4, Clean Water Services, Energy Trust of Oregon and the Oregon Department of Energy formally announced the implementation of a new cogeneration system that converts wastewater and grease into renewable energy. The innovative system, which is part of Clean Water Services Durham Treatment Facility, is the third cogeneration system in Oregon to codigest fats, oils and grease (FOG)."

Sewage Treatment Plant Retrofits Diffusers to Cut Energy Consumption 50%

Blower & Vacuum Best Practices, Apr. 2016, by Doreen Tresca.
http://www.blowervacuumbestpractices.com/industries/wastewater/sewage-treatment-plant-retrofits-diffusers-cut-energy-consumption-50

"In 2012 when the plant was struggling to keep up with regulatory requirements, the Ilmajoki STP [Finland] was using 4000 kWh per day. Once the new diffusers and control systems were implemented, the plant was able to reduce their consumption and averages to under 2000 kWh per day."

Savings From the Sun: How to Use Solar Energy to Offset Upgrade Costs [Wastewater Treatment Plant]

Treatment Plant Operator, Apr. 2016, by Doug Day.
http://www.tpomag.com/editorial/2016/04/how_to_use_solar_energy_to_offset_upgrade_costs

"Solar energy helps an updated Maryland wastewater treatment plant cut utility power costs. A blower upgrade will soon follow."

Energy Efficiency in Water & Wastewater

Pumps & Systems, Sep. 2015, by Jeff Bergman.
http://www.pumpsandsystems.com/pumps/september-2015-energy-efficiency-water-wastewater

"VFDs [Variable Frequency Drives] can reduce energy consumption and water loss in variable pumping systems."
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