Contract Notice NitratesSupply Nitrate Solution Provision Of Control UnitsDescription Framework Contract For The Delivery Of Approx 450 T Nitrate Solution P A For Elimination Of Hydrogen Sulphide And Provision Of Control Units As Part Of A Full Service Maintenance Contract For Ags Own Metering Pumps Manufacturer Alldos Type Profi And Manufacturer Eco Type D12 For 14 Sites In The Ags Sewer System For The Period From 1 1 2020 Until 31 12 2021 With Extension Option For The Ag Until 31 12 2022 The Offered Control Units Must Ensure A Dynamic And Needs Based Dosing Of The Offered Dosing Agent Sodium Solution Depending On The Sewage Flow Residence Time And Waste Water Temperature And Fulfill Further Requirements Specified In The Offer Documents The Full Service Contract Includes The Provision Repair And Purchase Of The Control Unit Data Handling On An Internet Platform The Use Of Dosing Technology The Maintenance And Servicing Of The Entire Dosing System With Electrical Testing In Accordance With The Bgm Including Logging And Preparation Of An Annual Work Report And If Necessary Optimization The Data Parameter Using H2s Control Measurements At The Request Of The Ag The Delivery Of The Nitrate Solution Is Carried Out At The Depots Diemitz Depot Fritz Hoffmann Stra e 77 06116 Halle And Apw B schdorf Reidenfeld 9 06116 Halle Only For Apw B schdorf The Annual Purchase Quantity Of Approx 450 Tons Is An Estimate Based On Empirical Values The Actual Purchase Quantity Depends On The Required Dosage And The Quantity Composition Flow Velocity And Residence Time As Well As Temperature Of The Waste Water And Is Therefore Not Predictable By The Ag The Contractor Must Therefore Expect Quantity Increases And Decreases Of Approximately 20 In The 12 Month Period The Nitrate Solution Must Fulfill The Following Product Characteristics And Requirements Ensuring The Dosing Capacity Of The Product From The Provided Storage Tanks At Temperatures Of 20Oc Shelf Life Of The Product In Terms Of Physical Properties Of At Least One Year The Nitrate Content Of The Delivery Substance Must Be 30 Mass Chemical Analysis Nitrate Nitrogen No3 N 7 5 7 8 Weight Ammonium Nitrogen Nh4 N Max 0 1 Weight Calcium Ca 10 4 11 6 Weight Ph 1 10 Solution 5 7 Physical Properties Water Insoluble Components 3 m Max 50 Ppm Freezing Pointoc Time Limit For Receipt Of Tenders Or Requests To Participate Date 23 09 2019 Local Time 10 00 Disclaimer The Above Text Is Machine Translated For Accurate Information Kindly Refer The Original Document
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