Germany - Construction of sewage treatment plants

Description

Construction, mechanical engineering, electrical engineering.
Lot 1 Construction work 1.1 Demolition work: - Reinforced concrete and concrete demolition of old sewage treatment plant area approx. 500 m³; - Demolition of factory buildings 1 piece; - Dismantling of sewers and pipes up to DN 300 AZ approx. 270 m; - Asphalt demolition approx. 90 m³; - Demolition of small components Reinforced concrete demolition approx. 35 m³ 1.2 Earthworks for buildings; - Backfilling of old components after demolition approx. 8 700 m³; - Excavation of buildings approx. 7,500 m³; - Sewer and pipe trench excavation approx. 1,000 m³ 1.3 Excavation pit shoring; - Girder pile shoring approx. 450 m2 1.4 Combination basin (activation and final clarification); - Reinforced concrete and concrete work approx. 500 m³ Operating building; - Reinforced concrete and concrete work approx. 100 m³; - Masonry, bricks approx. 500 m2;- Plaster work approx. 1,000 m2;- Screed work approx. 170 m2;- Trapezoidal sheet metal roof/sandwich panels approx. 240 m2;- tiling work approx. 400 m2;- painting work approx. 800 m2;- windows approx. 9 pieces; - doors approx. 3 pieces; - sectional gate approx. 1 piece 1.5 sludge storage tank; - reinforced concrete and concrete work approx. 60 m³ 1.6 sludge drainage; - reinforced concrete and concrete work approx. 40 m³; - brickwork, bricks approx. 110 m2;- finishing work flat rate 1.7 small structures; - outlet measuring shaft; - inlet lifting gear; - pellet storage tank 1.8 channels/pipes; - drinking and process water pipes HDPE DN 50/DN 80 approx. 270 m; - cable protection pipes approx. 650 m; - open-channel pipes PP DN 100 - DN 200 approx. 120 m; - pressure pipes HDPE DN 80 - DN 225 approx. 100 m 1.9 Outdoor facilities; - bituminous roadway reinforcement approx. 1 600 m2;- wire mesh fence with gate system approx. 225 m. Lot 2 Machine technology: 2.1. equipment rainwater overflow basin and storage sewer: - 4 pcs. wet-installed pumps Q: 10 l/s (per unit); - Including pipeline construction and fittings. 2.2 Equipment for mechanical wastewater treatment: - 1 compact grit trap with grease trap and wash press Q: 25 l/s; - 1 grit washer; - Incl. the necessary piping construction (VA) and fittings. 2.3 Intermediate lifting unit: - 2 pcs. wet-installed pumps Q: 25 l/s (per unit); - Incl. required pipeline construction and fittings. 2.4 Equipment for biological waste water treatment (combination tanks): Aeration elements incl. the necessary piping (VA) and fittings 2 blowers, each QL: 240 Nm3/h, 645 mbar (per unit) Perforated drain collecting pipe, stainless steel for tanks D=10.0 m 1 agitator P = approx. 4.5 kW with frequency converter 2 surplus/return sludge pumps, Q: 2.7-34 l/s (per unit) Incl. 2.5. equipment for sludge storage tank (diameter 5 m, V=100 m3): agitator swivel and height adjustable, turbid water discharge by means of slotted sieve, 2.6. sludge dewatering system incl. flocculant preparation and conveying technology, 2.7. equipment for discharge measurement by means of magnetic-inductive flow measurement. Lot 3 Electrical engineering: 3.1. electrical engineering equipment consisting of a low-voltage main distribution board with 10 fields with an integrated compensation system and a server cabinet. Installed on a raised floor to be constructed in the newly erected factory building, 3.2. PLC controls for the automation of the drives and consumers, 3.3. connection of the control of the compact plants via Ethernet and interface coordination incl. visualisation in the process control system, 3.4. Electrical installation in the operating building, sludge dewatering, the individual buildings and the outdoor facilities, 3.5. measuring systems for process automation and logging, 3.6. process control system for the control room for operation, observation and documentation of the drives, consumers and measured values. Installation of an operating logbook with Dabay interface, 3.7. process control system operable via touch panel at the switchgear and on a tablet PC for remote control and monitoring, 3.8. connection of a rain overflow basin and a pumping station by means of remote control technology to the process control system for operation, observation and documentation of the drives, consumers and measured values of the pumping stations, 3.9. connection.

Opportunity closing date

22 October 2020

Value of contract

to be confirmed