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December 12, 2013

Contact:  Markus Owens, Environmental Services, 768-3454

               Jesse Broder Van Dyke, Mayor Caldwell, 768-6928

 

Groundbreaking ceremony and blessing for 2nd digester at Sand Island

 

SAND ISLAND The City & County of Honolulu broke ground on Dec. 11 to expand the existing In-vessel Bioconversion Facility at its Sand Island Wastewater Treatment Plant with construction of a second Egg-Shaped Digester and Sludge Storage Tank. 

 

"I have always seen the need for a second digester, and we are taking action on this critical component of our wastewater treatment system," said Mayor Caldwell.  "The second digester gives us redundancy should our other digester fail as well as increased capacity.  In addition to complying with our ongoing Consent Degree with the EPA, the second digester allows us to live in a greener, more sustainable way."

 

Councilmember Joey Manahan, whose district includes Sand Island, attended the groundbreaking and said, "This project is long overdue and absolutely necessary for our growing city that needs the added capacity as well as the jobs for our working families."

 

The $29.1 million project, which is expected to be completed in mid-2016, will provide additional process capacity needed for existing and projected future loads.  The planned improvements will also improve system reliability and redundancy.  The second Egg-Shaped Digester and Sludge Storage Tank will allow temporary shutdown of one digester for routine maintenance or repair work, or in the event of an emergency.

 

The Bioconversion Facility is part of the Sand Island Wastewater Treatment Plant solids handling process.  Anaerobic digestion and solids conversion/reuse is the preferred method for solids treatment and disposal due to the ability of this process to reduce biosolids, minimize landfill waste, and maximize beneficial reuse.

 

Photos available: http://on.fb.me/1foGrZp 

 

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