Sewage Treatment Tenders

Details: Delivery of Concrete Linear Drainage And System Concrete Well - In Accordance With Appendix No. 1 - Description of the Subject Matter of the Order. The Contractor Is Obliged To Submit an Offer Form In Accordance With Template Appendix No. 2 And An Assortment And Price Form In Accordance With Template Appendix No. 2a. Together With The Offer, The Contractor Is Obliged To Submit The Documents Indicated In Point 8 Of The Opz (Appendix No. 1), Ie: Unit Valuation Including Transport Costs To The Tychy-Urbanowice Sewage Treatment Plant And A Catalog Card Containing The Product Specification. This Proceeding Is Conducted In Accordance With The Regulations Of Rcgw Sa In Tychy Of 06.02.2024, Regarding The Award Of Public Procurements With A Value Below PLN 130,000.00 Net. The Contractor may submit only one bid in electronic form, with the valuation of the Subject of the Order described in the Request for Bids, by the designated deadline. Failure to meet any of the above conditions will result in the bid being subject to rejection. The most advantageous bid is considered to be the bid with the lowest price or presenting the most advantageous balance of price and other requirements/criteria described in the Request for Bids. Before selecting the Contractor's bid, it is possible to conduct price negotiations with three Contractors who submitted the most advantageous bids that are not subject to rejection. The negotiated price must be confirmed in writing by the Contractor.

Details: At the Wansdorf sewage treatment plant, parts of the coating on digester sludge tanks 1 and 2, the mixed sludge tank and the operating bridges are being renewed. Tanks and operating bridges made of reinforced concrete. Tank dimensions: diameter: 10.5 m (inside), height: 5.8 m (inside), wall thickness: 0.4 m. The measure essentially includes: - dismantling the existing GRP cover, - dismantling and disposal of access hatches, - cleaning the surfaces of the fittings and the walls/bridge/floor, - draining the water sludge mixture incl. Fibrous materials using a suction truck, - loosening and removing solid deposits, - disposal of sand, fibrous materials and residual materials after temporary storage at the sludge storage area including proof of disposal, - removal and disposal of GRP coating 2 x 35 + 60 m2, - sandblasting concrete 130 m2, - renovation of damaged areas in concrete, - roughening existing coating 80 m2, - application of an alkali-resistant, environmentally friendly, crack-bridging, hand-laid, glass fiber reinforced, multi-layer epoxy resin coating Permacor 175 m2, - force-fitting filling of cracks (epoxy resin injection), - closing ceiling recess in reinforced concrete ceiling, - construction of pump sump for sludge hall.

Details: At the Wansdorf sewage treatment plant, the machinery and EMSR technology of the digested sludge tanks 1 and 2 and the mixed sludge tank are being renewed. The measure essentially includes: Digested sludge tank: - Dismantling and disposal of existing agitator and crane 2 pieces, - Delivery and installation of new agitator 2 pieces (motor power: 5.5 kW, 400 V, circulation volume flow: min. 6.5 M3/s, shaft length approx. 4,820 mm, nominal torque: 1,990 Nm), Mixed sludge tank: - Dismantling and disposal of existing agitator 1 piece, - Delivery and installation of new submersible motor agitators with installation kit and lifting device 2 pieces (propeller diameter: 0.58 M, speed: 475 min-1, thrust: min. 1270 N (f), 5.28 kW (p1), specific energy input: 24 W/m3 (p1ges/v), Sludge hall: - Delivery and installation of Söffel pump with control (qmax 18.5 M3/h, Hmin. 1 M, Hmax 18 m), pipe DN 150 5 m, fittings, - delivery and assembly of gate valves DN 150 with Auma drive 2 St Emsr: - installation and commissioning of the agitator drives of the digested sludge tank 1/2 and the mixed sludge tank - renewal of the Auma gate valves in the sludge hall - installation, commissioning and calibration of new radar measuring probes (fill level) in the tanks - integration of the agitators, gate valves, basement drainage pump and the measuring technology into the process control system - programming of the PCS7 automation system, adaptation of the operating images - renewal of the Nshv inserts for the outlets of the agitators and Auma drives (retrofit). - renewal of the cable laying systems on the tanks - renewal of the local control stations and intermediate terminal boxes - creation of the potential equalization for the newly constructed system parts and renewal of the lightning protection - testing of the electrical system - commissioning and functional tests - instruction - documentation