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Bidjugde
JOB
Green Valley WRF Sludge Processing/Odor Improvements
BID DATE
02/19/13 - 2:00
AGENCY
Pima County
ESTIMATE
$1,800,000
SCOPE
This project consists of construction of a new odor control system used to extract and treat foul air gases from two existing processes at the Green Valley Water Reclamation Facility. This project entails retrofitting the two existing gravity belt thickeners to accept new odor control covers, retrofitting the two existing aerobic digesters as sludge holding tanks by removing current mixing equipment, installing a new air agitated air mixing system, adding new aluminum covers, installing a new sludge loading station, and installing a new odor control system to service the gravity belt thickeners and sludge storage tanks. The foul air collection system includes installing foul air collection duct and appurtenances, conveyance fan and a biofilter. The estimated cost for this project is not to exceed $1,800,000.00 and all work is to be completed in 360 calendar days from the Notice to Proceed date

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