. Solar Energy News .

Award-winning treatment facility uses SPP E-tubes in drying process
by Staff Writers
Milford DE (SPX) Nov 15, 2011

Kent County's new biosolids drying system combines a passive solar greenhouse system with a solar water-heating system powered by Solar Panels Plus'SPP-30A evacuated tubes. Formerly, all biosolids were dried with natural gas dryers. The system is expected to reduce natural gas usage by 40 percent to 50 percent (Photo by Jim Newton.)

As part of its plan to reduce its dependence on fossil fuels, the Kent County Regional Wastewater Treatment Facility in Milford, Del., in August launched a pilot program that is using 66 SPP-30A evacuated tube collectors to provide solar thermal energy for its biosolid drying process.

The resulting end product will be used by farmers to amend soil, by a local landfill as a daily cover or by a local cement kiln as a fuel supplement to coal.

The Solar Panels Plus collectors are part of a solar thermal radiant floor system designed to heat the concrete floor of three 240-by-80 foot-long greenhouses. The combination of the solar thermal heat and the passive solar capability of the greenhouses provides 40 percent to 50 percent of the heat needed to dry the biosolids. A natural gas-fired heating system provides supplemental heat when needed.

The challenge for the lead engineering company, Carew Associates Inc., was to generate the most heat possible in a very limited space, says Bob Cannon, president. The project was originally designed with flat plate collectors, but after comparing the BTU production capability of the SPP-30As to the flat plates the firm decided to go with the evacuated tubes.

"The main crux of the job dealt with saving energy and promoting green alternatives," he says. "We were looking for the most efficient means of using solar energy to produce solar heat."

The fact that the SPP-30A collectors were Buy American Act-compliant also factored into the decision. SPP assisted with laying out the 66 collectors in the available space and the project moved forward.

The project did not go unnoticed. Earlier this year, the Environmental Protection Agency Region III awarded its annual Pisces Award to KCRWT for its extensive environmentally friendly changes.

In addition to the solar-powered biosolids dryers, other innovative changes include a 1.2 megawatt photovoltaic solar farm and the switch from chlorine gas to an ultraviolet disinfection system.

Related Links
Solar Panels Plus
All About Solar Energy at SolarDaily.com

Get Our Free Newsletters Via Email
Buy Advertising Editorial Enquiries


. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

ForVEI buys two solar farms in Italy
Tortona, Italy (SPX) Nov 15, 2011
The investment company ForVEI has acquired another two solar PV facilities for 7.93 MW developed by OPDE Group in the Italian region of Piedmont. The transaction, financed by Intesa Sanpaolo SpA, amounted to EUR33M (USD45M). The farms, which are fully operational, are located in Tortona (6.19 MW) and Predosa (1.74 MW). They feature TRINA and Canadian Solar modules, SMA inverters, and MECAS ... read more

Generating Ethanol from Lignocellulose Possible, But Large Cost Reductions Still Needed

Solazyme Announces First US Commercial Passenger Flight on Advanced Biofuel

A Stable Renewable Fuel Standard Is Needed to Meet Biofuel Production Goals

Mission Increases Jatropha Oil Supply Completing the 2011 Planting Season

Robot speeds up glass development

Clear vision despite a heavy head

High-tech spider for hazardous missions

Canadian robots competition canceled

Scotland gets $160M for renewable energy

Macho Springs Wind Project Completes Construction

Ascent Solar Selects Teams for Innovative Design Competition

Mortenson Construction Builds Its Fifth Wind Facility In Illinois

Toyota to unveil new hybrid model at motor show

Chinese firms still eying Saab purchase as deadline expires

Fire in GM's electric Chevy Volt prompts US probe

US company sees potential in kinetic energy capture

ASEAN backs away from maritime stand against China

Chevron says suspending drilling after oil spill off Brazil

Chevron Brazil says it will seal errant oil well

US Government Confirms Link Between Earthquakes and Hydraulic Fracturing

Graphene grows better on certain copper crystals

New method of growing high-quality graphene promising for next-gen technology

Giant flakes make graphene oxide gel

Amorphous diamond, a new super-hard form of carbon created under ultrahigh pressure

Iraq's Basra threatens to act alone over power cuts

US Congress to look into 'green' aid to China

NOAA greenhouse gas index continues climbing

IEA: Warming may be irreversible by 2017

'Father of Mangroves' fights for Pakistan's forests

Congo launches large-scale tree-planting programme

Report provides new analysis of carbon accounting, biomass use, and climate benefits

Holm oaks will gain ground in northern forests due to climate change


The content herein, unless otherwise known to be public domain, are Copyright 1995-2011 - Space Media Network. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement