Tenders Are Invited For Delivery, Assembly And Start-Up Of A Sand Screen At The Wastewater Treatment Plant In Ko aczyce As Part Of The Task Entitled Modernization Of The Sewage Treatment Plant In Ko aczyce

1. The Subject Of The Contract Is The Delivery, Assembly And Commissioning Of A Sand Screen With Accompanying Devices At The Wastewater Treatment Plant In Ko aczyce, Located On Plots No. 215/8 And 215/9.1) The Offered Sand Screen Should Be Able To: Capacity: Maximum Hourly - 35 L/Sb) Sand Removal Efficiency 95% For Grains With A Diameter >0.2 Mm,2) The Offered Sand Screen Should Be Adapted To Work In A Continuous 24 H/D System In A Fully Automatic System.3) The Sand Screen Will Be Installed On A Previously Prepared Plate Above The Pumping Station Tank, Outside By The Biological Reactor. Therefore, It Is Required That The Device Has An Insulation And Heating System That Allows It To Work Outside In Winter Conditions. The Dimensions Of The Plate For The Sand Screen Are: Length: Approx. 5 M. Width: Approx. 1.5 M. Existing Inlet Manifold For Two Reactors. Two Outflows Of Min. Dn200 Equipped With Electric Slides That Should Be Connected To The Current Control System Of The Treatment Plant In Order To Properly Distribute Wastewater To Two Sbr Reactors. 5) The Devices Must Be Brand New. . The Date Of Commencement Of Works Should Be Agreed With The Sewage Treatment Plant Manager.7) Description Of The Subject Of The Order: A) Sand Screen 35L/S - 1 Set. Technical Parameters: - Sieve Capacity Minimum 35 L/S - Spiral Sieve With A Clearance Of 5Mm, - Active Sieve Diameter 300Mm - Temperature -30 C To 50 C Part Of The Sand Trap With An Average Capacity Of 25-351/S Sand Screw Conveyors Made Of Stainless Steel Aisi 304 Aeration System - Blower + Aeration System Supporting Fat Flotation, Grease Pocket Min. 400Mm Equipped With A Grease Scraper, Which Will Be Used To Scrape The Fat Into The Draw Chamber Of The Positive Displacement Pump. Power Supply Parameters: - Screen Drive Min. Of Sand Trap Min.0.37Kw/400V/Ip55, Blower Motor Min.0.4Kw/400V/Ip55, Scraper Drive Min.0.18Kw/400V/Ip55 Grease Pump 1.5 Kw/400V/Ip55 W In The Power Supply And Control Cabinet, Install The Necessary Technical Devices That Will Ensure The Possibility Of Operation Of The System. The Devices Must Ensure Proper Operation Of All Devices. Materials: Inflow Chambers, Sand Trap Body, Sieve - Aisi304 Stainless Steel Sand Spirals - Aisi304 Stainless Steel Screening Spirals - Aisi304 Stainless Steel Insulation Sheathing - Stainless Steel Aisi304 Additionally, The Device Should Be Protected Against Corrosion By Painting With Polyurethane Paint With An Admixture Of Aisi316 Steel. Due To The Equipment Of The Sandblaster, The Aeration System And Grease Trap C) Gate Valves Dn200 With Electric Drive - 2 Pcs. To Be Connected To The Existing Control System Of The Treatment Plant. D) Steel Platform For Containers For Sand And Screenings. There Will Be Containers For Sand And Screenings. Additionally, A Device In The Form Of A Discharge Chute Should Be Provided, Through Which Screenings And Sand Will Be Transported On A Lower Level To The Final Containers For Screenings And Sand. Materials: The Platform Should Be Made Of Galvanized Carbon Steel, While The Discharge Chute Should Be Made Of Stainless Steel Aisi 304.8) Additional Requirements: A) Due To The Fact That The New Sand Screen Is To Be Included In The Existing And Functioning System, Bidders Should Carry Out A Site Visit And Familiarize Themselves With The Existing System. They Should Also Take Accurate Measurements. B) The Ordering Party Requires That Within 14 Days Of Signing The Contract, The Contractor Submits The Assembly Drawing Of The Proposed Solution For Approval.2. The Contractor Is Obliged To Provide For The Completed Subject Of The Contract Min. 36-Month Quality Guarantee, Counting From The Date Of Signing The Acceptance Report Without Significant Comments (Bid Evaluation Criterion).

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