Tenders Are Invited For Purchase And Assembly Of A Replacement Device For Drainage Of Sediment At The Sewage Treatment Plant In Łąck

The Subject Of The Order Is A Brand New Delivery (2024 Or 2025) Free From Factory And Legal Defects Of The Screw-Tailor, Two-Speed For Drainage Of Sediment To The Sewage Treatment Plant In Łąck Together With Assembly And Startup. When Selecting The Device - The Press Should Be Adopted As The Following Parameters: 1) Tripkewy Of The Sewage Treatment Plant 867 M³/Day, 2) Dehydration Of The Amount Of Sludge Min. 50-65 M³/Day To The Degree Of Dehydration 18-22% Dry Mass, 3) Press Working Time Approx. 6-10 Hours, 4) Biological Wastewater Treatment: A) Reactor Chamber-Żelbetb) Hydraulic Flow-Continuous, C) Biological Process-Active Sediment, D) Removing Biogenic Compounds-Nitrogen And Phosphorus, E) Stabilization Technology System - Oxygen, F) Age Of The Active Sediment In The Reactor -Tsm Chamber - 16 Days <Tsm <20 Days, G) The Age Of The Active Sediment In The Technology System - Tc - 25 Days <Tc <30 Days, H) Load Of Active Sludge - Bsm - 0.05 Kgbzt5/Kgxd <Bsm <0.07 Kgbzt5/Kgxd In The Reactor Chamber - Tr - 25 Days <3 Days, J) Unit Sludge Increase - Spo <0.9 Kgs.M.O/Kg Bzt5 X D, K) Ratio Of Denitrification/Nitrification Capacity Vd/Vc - Adjustment Possibility Of 0% ÷ 50%, L) External Recirculation - Rhep Oxygenation - Hcz - 5.3 M <Hcz <5.7 M, 5) Sepulation Of Sewage Sediment: A) Sedimentary Type - Vertical, B) Shape Of The Settler - Round, C) Level Of Sewage Disposal From The Settler, Measured From The Surface Of The Sewage Mirror P - 0.1 M <P <0.5 Md). Loading Of The Settler Surface (At Qdśr) - Θ - 5 H < H, E) Settlement Recirculation Efficiency Is - 01 - Adjustment In The Range Of 0 M3/H ÷ 30 M3/H, F) Efficiency Of The Sediment Discharge System - 02 - Adjustment In The Range Of 0 M3/H ÷ 30 M3/H, G) Efficiency Of The Drainage System Of The Flow Of Floating Parts - 03 - Adjustment In The Range Of 0 M3/H ÷ 30 M3/H, H) Deposit Material - Reinforced Concrete, A Sediment Dehydration Device Should Meet The Following Requirements, I.E. Have: 1) Floculator, 2) Mass Efficiency 100-200 Kg S.M.O/H, 3) Hydraulic Efficiency-Bandwidth 8-10 M3/H, 4) Press Snail With A Diameter Of Min. 350 Mm, 5) Automatic Polyelectrolyte Preparation Team From Emulsion, 6) Dirty Leachate Recirculation System, 7) Sediment Conditioning System, 8) Feeder For Transporting Dehydrated Sediment, 9) Flow Meters For Sediment And Polyelectrolyte, 10) Operator Panel Of Devices For Controlling The Work And Settings Of The Device, 11) Device And Accessories Made Of Stainless Steel, Acid-Resistant, 12) The Device Should Guarantee Dehydration Of The Sediment To A Minimum Of 18% -22% S.M.O. The Contractor Will Conduct Tests And Selecting The Optimal Polymer For The Composition Of The Sediment And The Structure Of The Device. The Contractor Will Carry Out Tests And Selection Of The Polymer At Its Own Expense And Risk. The Order Of The Contract Includes: 1) Delivery Of The Device- Screw-Plate Press, Two-Speed, 2) Execution Of The Hydraulic And Electrical Installation Of The Device From Own Materials

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