Durham Advanced WWTF WASSTRIP Impr.

BID CLOSE DATE

2020.11.12

BID CLOSE TIME

2:00 pm

PROJECT LOCATION

Tigard, OR

LEAD ESTIMATOR

Brint DeVilling

PHONE

360-225-7996

EMAIL
bids@stellarj.com
PROJECT DESCRIPTION

Convert an existing concrete tank to a Waste Activated Sludge (WAS) Equalization

Tank with associated piping and valves.
Install new WAS Pre-Thickening Feed Pumps and associated piping and valves in the existing Aeration Tunnel.

Install new WAS piping and valves from the WAS Pre-Thickening Feed Pumps in the Aeration Tunnel, through the tunnel system, Solids Building Basement to the Rotary
Drum Thickeners in Digester Complex 1 (DC1).

Install two Rotary Drum Thickeners and their appurtenances including wash water
booster pumps, controls, sludge hoppers, access platforms and polymer mixers in
DC1.

Install new P-Release Transfer Pumps in the ground level of DC1.

Install a pumped jet mixing system including piping, nozzles, and a mix pump
associated with the P-release Tank (a former anaerobic digester) in lower level of
DC1.

Install an odor control system for the P-release Tank consisting of ducting and an at
grade carbon cannister odor control system.

Available Project Information