Construction
Efforts |
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March 21, 2008 |
Acid Phase Digester and Control Building |
Blower & Electrical Building
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Chlorine Contact Tanks |
Dismantling of Existing Digested Solids Storage Tank Pump Station |
Preliminary Treatment Facility
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T-Lock Liner on the Acid Phase Digester |
April 23, 2008 |
Dewatering Building upper level structural steel being erected.
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Chlorine Contact Tank construction in the background, Acid Phase Digester Tank and Control Building in the middle of the picture, and the footings for the Gas Blower Building in the foreground.
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Blower and Electrical Building (blower room portion of the building is on theleft, electrical room is on the right-front, generator room is right-rear). |
New Secondary Clarifier Nos 5 and 6. These tanks are 160 ft. diameter Crom pre-stressed tanks. The tank on the left is currently filled with water (conducting a water tightness test). |
West end of the Preliminary Treatment Facility.
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East end of Preliminary Treatment Facility (grit tank area).
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Aeration Tank, baffle wall, and t-lock liner. |
48-Inch Aeration Tank influent lines.
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June 16, 2008 |
Blower and electrical building (looking west). Most of the electrical gear is in the building (foreground). |
Acid phase digester in background; Gas blower building in foreground.
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Chlorine contact tank addition. The two new tanks are on the left; the two existing on the right. |
Dewatering building on left; Cake storage pad #2 on right. Interior block work on the second level of the dewatering building is nearly complete, roof is on, and precast panels will be delivered shortly. |
Preliminary treatment facility is on the left, primary clarifiers 5 and 6 on right.
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Aeration tanks.
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August 10, 2008 |
Dewatering Building and Cake Storage Pad #2.
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Upper level of dewatering building. The centrifuges will sit on the concrete pads in the foreground. Support rooms are in the background. Electrical equipment is under the blue tarp.
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Overhead Primary Clarifier Effluent Channels are on the left; the Blower and Electrical Building on the right. Blower intake plenum is the large rectangular opening in the middle of the building. The two semi-circle openings are for the blower piping. |
The blower room.
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The Primary Solids Pump Station and Influent end of the Primary Clarifiers.
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Another shot of the Primary Clarifier Effluent Channels. The 36” RAS discharge piping is just visible under the channel. Note the T-lock on the channel walls. |
Secondary clarifier equipment (Envirex).
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Chlorine Contact Tank Nos. 3 and 4.
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Inside of the Acid Phase Digester.
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Outside of the Acid Phase Digester. Gas Booster Building is on the left. Acid Phase Digester Control Building slab work is in front of the digester. The new Chlorine Contact Tanks are in the background.
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Sodium Hypochlorite storage tanks. A canopy roof will eventually cover the tanks.
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Gas flare structure.
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September 2008 |
Dewatering Building - lower level. Centrifuge feed pumps and day tank. |
Dewatering Building - upper level. Installing bridge crane that will serve the centrifuges.
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Secondary Clarifier Influent Distribution Chamber No. 2 and 84” MLSS line construction. |
Secondary Clarifier No. 5 collector mechanism. |
Secondary Clarifier No. 5 center feed well.
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Standby Generator No. 1. |
Front of the Preliminary Treatment Facility. The two 54” influent lines (vertical lines) are visible at the right. |
Acid Phase Digester is in the right background. Acid Phase Digester Control Building is in center foreground. Digester Gas Blower Building is to the left.
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Existing Centrifuge Room/Future Gravity Belt Thickener Room. Centrifuges are still located in background, but will eventually be relocated to new Dewatering Building to make room for the GBTs. GBT base work is in foreground. |
January 18, 2009 |
Lower level of the Dewatering Building. Centrifuge cake discharge chutes and screw conveyors are in the foreground. Belt conveyors are in the background. |
Exterior of Dewatering Building. Cake Storage Pad No. 1 is on the left. Note new cake belt conveyor from Dewatering Building to Cake Storage Pad.
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Primary Clarifier effluent channels on left. Blower/Electrical Building on the right. |
Acid Phase Digester Control Building on left. Acid Phase Digester on right. |
Acid Phase Digester heat exchangers, pumps and grinders.
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Chlorine Contact Tank Nos. 3 and 4. |
Digester gas flare assembly. |
Gravity Belt Thickeners.
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Construction of Primary Clarifier Influent Distribution Chamber on left; 72” Preliminary Treatment Facility effluent line center and right. Opening in Primary Clarifier Influent Distribution Chamber wall is for future 72” influent line. |
Aeration System Blowers. |
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April 5, 2009 |
Preliminary Treatment Facility is in the center of the photograph. The influent screens have been installed and the building steel is being erected. Primary Clarifier Nos. 5 and 6 are on the right. |
Air supply and foul air lines on top of the Aeration Tanks.
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Cake Belt Conveyor No. 2. The Dewatering Building is in background. |
Primary Clarifier Influent Distribution Chamber and overhead channels. |
The start of Odor Control Station D.
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Digester Gas Flare Assembly. |
Aeration Tank diffusers. |
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April 25, 2009 |
Odor Control Station D is in the foreground. Primary Clarifier Influent Channels are in the middle of the photograph. The Preliminary Treatment Facility is in background. |
RAS Pump Station is in foreground. Plant Drain Pump Station No. 2 is on the left. Blower/Electrical Building is on the right.
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The Acid Phase Digester is in the center of the photograph. The Acid Phase Digester Control Building is on the left. |
Gas piping coming from the existing Digesters. |
Inside the Influent Screen Channel. The channel is 10 ft. deep, 7 ft. wide. Each screen is designed for 67.5 mgd. Screens are perforated plate type with 6mm (1/4-in) diameter holes.
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Secondary Clarifier troughs, weirs and density current baffles. |
