Tenders Are Invited For Replacing The Filter Beds In Two Vertical Filters With A Capacity Of 6,000 L And Cleaning Inside Two Hydrophore Tanks With A Capacity Of 4,000 L In The Military Complex In The Group (...) - Case 75/2024

The Subject Of The Order Is The Replacement Of Filter Beds In Two Vertical Filters With A Capacity Of 6,000 L And Cleaning Inside Two Hydrophore Tanks With A Capacity Of 4,000 L In The Military Complex In The Municipality Group. Dragacz, In Accordance With The Requirements Specified In This Documentation And A Detailed Description Of The Subject Of The Order And The Scope Of The Service And Under The Conditions Specified In Annex No. 1 And 2 To The Swz. The Scope Of The Subject Of The Order Includes: The Subject Of The Order Includes In Particular The Following Scope: - Dismantling Of Vertical Dn Filter Manholes 1800 Mm With Capacity 6000 L. Removal Of Used Filter Beds From The Filter And Their Disposal. Cleaning, Scraping, Rinsing Inside The Filter And The Hopper. Checking The Technical Condition Of The Drainage Plate And The Splash Hopper. Welding Of Damaged Elements (Drainage Plates, Steel Elbows, Nozzle Discs ).  Replacement Of Mushroom-Type Filter Nozzles Dn 1/2ʺ, 240 Pieces Each.  Replacement Of Manhole Seals (Bottom And Top).  Preparation Of The Tank For Filling With Quartz Filter Beds In Accordance With The Standard For A Given Type Of Filter. Quantities Given For One Vertical Filter With A Capacity Of 6000 L. Filtering Quartz Gravel With A Granulation Of 10 ÷ 16 Mm In An Amount Of 400 Kg. Filtering Quartz Gravel With A Granulation Of 6 ÷ 10 Mm In An Amount Of 400 Kg. Filtering Quartz Gravel With A Granulation Of 2.0 ÷ 5.0 Mm In An Amount Of 400 Kg Activated Carbon - Anthracite 1.4 ÷ 2.5 Mm In An Amount Of 2800 Kg. Catalytic Mass, Manganese Ore G1 0.6 ÷ 2.4 Mm In An Amount Of 2600 Kg. Quartz Filter Gravel With A Granulation Of 0.8 ÷ 1 .4 Mm In The Amount Of 1200 Kg. Due To The Single-Stage Treatment Of Raw Water In The Column Filter, A Filter Bed Should Be Installed - Catalytic Together For Two Vertical Filters. Activated Carbon - Anthracite In The Amount Of 5600 Kg And Catalytic Mass (Manganese Ore) G1 In The Amount Of 5200 Kg . Chlorination And Disinfection Of Filter Beds Together With The Tank. Cleaning Inside 2 Pcs. Of Hydrophore Tanks With A Capacity Of 4000 L. Cleaning Of The Water-Air Mixer In Each Filter (2 Pcs.) And The Water Installation Supplying The Vertical Filters.