The Rinse Water Treatment Installation At The Mensink Pumping Station (Psm) No Longer Functions Optimally And Is In Need Of Renovation. The Installation Purifies The Rinse Water Successively With Coagulation, Flocculation, Sedimentation Through Lamellar Separation And Continuous Sand Filtration. The Contractors Scope Of Work Is Broadly Described Below: Lot 1 Construction Work Under The Coordination Of The Contractor Lot 2: - Detailed Engineering - The Removal And Replacement Of One Of The Existing Structural Glass Facades; - Removing And Replacing Part Of The Steel Floor Construction Around The Slat Separators; -Structural Changes To Flushing Water Buffer Cellars; -Make Temporary Provisions To Keep The Building Wind- And Watertight During The Renovation. Lot 2 Mechanical Engineering Work And Coordination Of Work By Secondary Contractors: -Detailed Engineering -Overhauling The Feed Pumps; -Replacing The Motor Drive Of The Feed Pumps; -Replacing The Static Mixers; -Maintaining The Flocculation Tank, Reapplying The Coating Where Necessary; -Replacing The Six Agitators In The Stirred Mixers; -Replacing The Lamella Separators And The Sludge Thickeners; -Blasting, Passivating And Pickling The Continuously Flushing Sand Filters; -Replacing The Sludge Discharge Pumps; - Dismantling The Complete Pe Production Unit Including Dosing Pumps And Cabinet And Pipework; -Replacing The Iron Chloride Dosing Pumps; - Demolition Of The Gas Scrubber In The Ferric Chloride Room; -Replacing Fittings Larger Than Dn40; Lot 3 Electrical Work Under Contractor Coordination Lot 2: -Detailed Engineering -Replacing The Lamps On The Top Of Continuously Flushing Sand Filters; -Replacing The Feed Pump Drive; -Replacing The Sludge Discharge Pumps; -Replacing The Ferric Chloride Dosing Pumps; -Replacing The Low-Voltage Distributor; -Adjusting The Operation And Control Of The Stirred Mixers; -Replacing Instruments; -Replacing Or Adding Position Messages On Valves; - Dismantling The Pe Installation; The Details Of The Assignment Can Be Found In The Attached Work Description.
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