Sludge Watch ==> Florida - Bradenton - sludge pellets used for daily cover in landfill
Maureen Reilly
maureen.reilly at sympatico.ca
Thu Jan 25 13:14:55 EST 2007
Sludgewatch Admin:
Sludge is pelletized, trucked to landfill, and mixed with dirt to make a
daily cover in landfill.
I can live with that. At least they aren't polluting soil and contaminating
the food chain.
In addition, by mixing the pellets with soil they address the spontaneous
combustion issue.
No land applied sludge running off into the bay to hurt the pretty manatee.
////////////////////////////
Posted on Thu, Jan. 25, 2007
With plant, county won't waste sludge
JAMES A. JONES JR.
The Herald
MANATEE - By the year 2008, Manatee County officials hope they no longer
have to spread sludge on the ground to get rid of it.
A company is preparing to build a 9,610-square-foot plant at the Lena Road
landfill that would handle sludge from all three county wastewater treatment
plants. The sludge, the final byproduct of the treatment of sewage, would be
completely dried out and converted into pellets for use as fertilizer.
It could be used for grass cover at the landfill and county parks and golf
courses. Some of it could possibly be sold, said David Shulmister, Manatee's
wastewater division manager.
Manatee's sludge - wastewater the consistency of gelatin - is now trucked to
fields in Charlotte and Polk counties.
When it is converted into pellets, it will go through an additional drying
process, killing virtually all remaining pathogens.
The county has awarded a $14.5 million contract to Andritz, a company based
in Graz, Austria, for the plant.
"Our preliminary intent is to take the pellets over to the landfill, mix
with dirt and then use for cover material to grow grass to cover the
landfill," Shulmister said.
He compared the pellets to Milogranite, a gardening product made from sludge
that is available in stores.
Andritz was the only company to answer Manatee County's request for bids,
Shulmister said. The plant will be built near the southeast Manatee
wastewater treatment plant on Lena Road.
"I believe they expect to start turning dirt sometime in February," said
Shulmister.
Worldwide, Andritz has about 500 installations of its dryer technology, with
the closest being in Pinellas County. "I expect the plant will be
operational sometime around the second quarter of 2008," Shulmister said.
Under the Andritz system, sludge travels along a conveyer belt through a
rotating drum, similar to a clothes dryer, three times as it is dried out
and converted into pellets, Shulmister said.
Jim Rolston, director of utility operations for Pinellas County, said the
Andritz system has been operational for about three years in his county.
The system is operated through a contractor, who sells the pellets to
Florida farmers and some golf courses.
Pinellas elected to contract the work because it had no experience in
marketing byproducts. "We don't sell to individual homeowners," Rolston
said.
The county negotiated a contract for a percentage of the residuals from the
sale of pellets, but it's not enough to offset the cost of the operation.
"The real reason we did it was so that we weren't applying the sludge to
fields in Florida," said Rolston.
James A. Jones Jr., East
http://www.bradenton.com/mld/bradenton/business/16537818.htm
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