2017 Archive : Tensioned Clarifier Cover

Project Details

Fabric 1

Sioen B9060 Membrane
Producer: Sioen
Supplier: OTHER

Engineer Name 1
Bill Malyk

Engineer Company 1
AMEC

Design Name
Tensioned Clarifier Cover

Design Company
Industrial and Environmental Concepts, Inc. (IEC) & Wieffierink, Inc.

Fabrication Name
Tensioned Clarifier Cover

Fabrication Company
Wiefferink

Subcontractor Name
Clint Taylor

Subcontractor Company
Cobalt, Inc.

Project Manager Name
Jerod, Munro

Project Manager Company
AMEC

Installation Name
Tensioned Clarifier Cover

Installation Company
Industrial and Environmental Concepts, Inc. (IEC), Wiefferink, Inc. & Cobalt, Inc

Please describe the project specifications

A cover needed to be installed over a functioning wastewater treatment clarifier in a semi-remote area of Manitoba, Canada. The clarifier was undergoing numerous upgrades such replacing the walkway, sludge scraping mechanism and surface skimmer. The installation needed to be completed during a short shut-down period.

What was the purpose of this project? What did the client request?

The client needed an effective, long-lasting and affordable cover to contain odors and moisture. The cover needed to be custom designed to precise dimensions to accommodate another vendor's new equipment that was to be installed.

What is unique or complex about the project?

The project had multiple challenges. The cover needed to be installed on a clarifier that was located within a building that had minimal perimeter and overhead workspace. There was no opportunity for a forklift or tracked vehicle to bring the cover in from the side. The limited access required a temporary opening in the roof to be made to enable the cover to be lowered into the building by a crane.

The 2nd challenge was the other vendors equipment had very tight operational tolerances. Their equipment was set to 16th's of an inch. Therefore, the cover could not subject any undue stress on the structure to cause their equipment to be moved out of alignment. The fabrication and installation had to be exact and balanced..

The 3rd challenge was the cover needed to be installed within 72 hours of the cover's arrival to to avoid budgetary cost over runs and meet their timeline. A team of truck drivers drove the cover non-stop to the job site to help save time.

What were the results of the project?

The tensioned cover fit like a glove. The installation was completed twelve hours ahead of the targeted timeline. The other vendors equipment stayed in alignment without any need for adjustment. The membrane cover was chosen for it's attributes over several excellent hard cover options. In the end, the operational staff and project manager were satisfied with the affordability and quality of materials and installation.

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