Tenders Are Invited For Expansion And Reconstruction Of The Sewage Treatment Plant In Samborzec

1. The Subject Of The Order Is The Implementation Of The Task Entitled: Expansion And Reconstruction Of The Sewage Treatment Plant In Samborzec In The Design And Build System. The Implementation Of The Task Includes Design Work And Construction Works Related To The Reconstruction And Expansion Of The Existing Sewage Treatment Plant In Samborzec, Primarily With A New Sbr Tank, Along With Obtaining The Arrangements, Opinions, Consents, Permits, Decisions Required By Law, As Well As All Construction And Assembly Works Regarding The Works. Described In The Functional And Utility Program (Ffu) And Those Not Listed, But Necessary For The Proper Execution Of The Order, Including Its Launch, Technological Start-Up And Obtaining An Occupancy Permit.2. The Current Mechanical-Biological Sewage Treatment Plant In Sambolec, Type Sbr, Has A Capacity Of 640 M3/D And A Load Of Pln = 5,334. Due To The Ongoing Expansion Of The Sewage Network In The Commune, It Is Necessary To Increase The Capacity Of The Treatment Plant To 1,280 M3/D And A Load Of Pln = 9,500. Therefore, It Is Required Expansion And Reconstruction Of The Biological Treatment Plant, Sludge Management And Control System. Achieving The Above Assumptions Is Closely Related To The Construction Of New Technological Facilities In A Monolithic Reinforced Concrete Structure With Technically Advanced Technological Equipment And An Instrumentation And Control System. Automation Of Technological Processes Is Required Based On High-Performance Measuring Devices To Optimize The Treatment Process And At The Same Time Reduce Treatment Costs, One Of The Highest Factors Of Which Is Electricity Consumption And Sewage Sludge Disposal. The Analysis Of Quantitative And Qualitative Data Of Raw Sewage, The Condition And Technical Parameters Of The Sanitary Sewage System In The Catchment Area Of ​​The Samborzec Commune Determine The Scope Of Expansion And Reconstruction Of The Treatment Plant In Question. The Planned Target Load Of The Treatment Plant Expressed As The Equivalent Number Of Residents Cannot Be Lower Than Pe = 9,500. For This Size Of Treatment Plant, The Quality Requirements In The Discharged Treated Sewage Contained In The Applicable Regulation Of The Minister Of Maritime Economy And Inland Navigation Of July 12, 2019 On Particularly Harmful Substances Must Be Met. For The Aquatic Environment And The Conditions That Must Be Met When Introducing Sewage Into Water Or Land, As Well As When Discharging Rainwater Or Meltwater Into Water Or Water Facilities. Additionally, Nitrogen And Phosphorus Reduction Is Required As For Sewage Treatment Plants With A Load Above 10,000 Pe, I.E.: Total Nitrogen ≤ 15 Mg/L And Total Phosphorus ≤ 2 Mg/L. Achieving Such An Effect Should Be Achieved By Using The Existing, Modernized Equipment Of A Mechanical Sewage Treatment Plant With A Screen Sand Trap, Two Sbr-Type Sequential Reactors (Existing And Planned) And Sludge Management With Oxygen Stabilization And, In The Future, Adapt