Podkrušnohoří (ISPA project)
Reconstruction of Drinking Water Supply System, Construction of Sewerage System, Reconstruction of Water Treatment and Waste Water Treatment Plants in the Region Podkrušnohoří
The project is financed by the European Union in accordance with the conditions of the Financial Memorandum of the ISPA project No. 2001/CZ/16/P/PE/00 and from the State Environmental Fund of the CzechRepublic and from the funds of SVS Inc. Teplice.
Project history
In the year 1999, Sevoročeská Vodárenská Company Inc. started preparing the application for support from the ISPA programme for the project which consists of three groups of measures.
Group of measures No. 1 – Drinking Water of the project in question consisting of the two following Works sections: reconstruction of water treatment plant (WTP) Hradiště and renovation of drinking water pipeline Želenice – Bílina. Group of measures No.2 – reconstruction of 5 waste treatment plants in the area of Pokrušnohoří and group of measures No.3 – to finish the building of sewerage system in agglomeration Ústí nad Labem. In July 2005 the project was accepted by European Commision and on 1st December the Financial Memorandum about the support for metioned project was signated. Followed the preparation of particular groups of measures, elaboration of tender documentation and setting of an international competition.
Group of measures No. 1 - Drinking water.JPG)
The contract work agreement was signed with the successful candidate for the group of measures No. 1 – Drinking water was undersigned in April 2004 with partnership ISPA Hradiště – Partnership SMP CONSTRUCTION, SOGEA – SATOM.
The object of reconstruction is the water preparing plant in Hradiště and renovation of drinking water pipeline Želenice – Bílina.
Reconstruction of water preparing plant in Hradiště
Water preparing plant Hradiště is the main source of Nort-Bohemian water supply system. Since the setting in operation (in 1976) there have been the gradual deterioration in raw water quality in the water-supply reservoir Přísečnice and this was the reason why the owner of this water works (that is Severočeská vodárenská company Inc.) included the reconstruction of the water preparing plant in the project.
These parts of water preparing plant Hradiště were put on a programme of the reconstruction:
- fast blending in the part of chemical dosing and homogenization
- sand filtration and the related operation – water accumulation of finished water and in limited way wash-water tank
- chemical dosing of potash
- chemical dosage adjustment
- sludge treatment in the part of supply sewage water to the sludge storing lagoon
- distribution plant
- the control system of technological process including the inspection rooms of the water preparing plant
Renovation of drinking water pipeline Želenice – Bílina
The main item of the programme is the recosntruction of the existing supply line in a section between Liběšice (near Želenice) and shaft in front of the power station. The total length is 6,5km. Because of aggressive environment the existing steel pipelines are exhanged for glass-fiber reinforced ones.
Reconstruction of the supply line starts at the delivery point near Liběšice (Želenice). The supply line goes through greenery along the main road Bílina-Most and in Liběšice it continues in the local parkway. Behind the community of Liběšice the supply line goes under the road and then along the river Bílina, mostly hidden in the bushed greenery. In the suburbs of city Bílina the conductor routing is across a car-camping and swimming pool. Behind a swimming pool it goes across the playground, garden-plots and greenery up to the the place where the river enters the trained stream channel of the river Bílina. Then the supply line passes through the greenery in front of the bus terminal, through the road to the railway station ČD and it ends in the shaft AŠ2. The section between the railway station ČD ad shaft AŠ3 together with a branch to the water-supply tank Chlum was reconstructed in 1999. From the shaft AŠ3 renovation of supply line goes on up to the power station Ledvice.
Execution of a work: 21. 5. 2004 – 31. 5. 2006
Total price: 8.697.762,14 Euro
Investor: Severočeská Vodárenská Company Inc.
Project is cofinanced by European Commission and by the Czech State Environmental Fund
Contractor: ISPA Hradiště – Partnership SMP CONSTRUCTION, SOGEA-SATOM
Civil engineer: Babtie Group Limited + VOD-KA Inc. + HPP public company
General designer: Hydroprojekt CZ, Inc.
Operator: Severočeské vodovody a kanalizace, Inc.
Group of measures No.2 – Reconstruction of waste water treatment plants
The contract work agreement was signed with the successful candidate for the group of measures No.2 – Reconstruction of waste treatment plants (WWTP) in October 2004. The successful candidate was the partnership „Alliance companies of Podkrušnohoří – WWTP“. The head of this alliance is Metrostav Inc. Prague.
The main object of reconstruction is waste water treatment plant in Jirkov, Klášterec nad Ohří, Kadaň, Údlice and in Žatec.
The principal aim is to fulfil the Council Directive 91/271/EHS which sets the limits for waste water disposal into the surface water. This aim will be reached due to the use of modern technology of purification and due to finishing of buildings. The improvement will follow in the area of stabilisation, improvements of purification results, improvement of operating conditions, load decrease of water objects by pollution and load deacrease of environment by aerosols and noise.
Reconstruction of waste water treatment plant Jirkov
This waste treatment plant (WWTP) is the mechanical-biological cleaning plant with capacity of 40 333 PE. Clarified water is let-out into the river Bílina.
Waste Water Treatment Plant is necessary for exhaust water cleaning from Chomutov from the housing estate Kamenná, Zahradní, Písečná and a part of the housing estate Březenecká, from Jirkov and Otvovice.
The machine coarse racks and fine racks as well as sand filter will be integrated. The sedimentation tanks will be renovated and newly used for activation. The existing classical activation will be subjected to revision to the zone systém R-S-D-N enabling the biological elimination of N and partially also of P and suppressing the development of fibrious structure of micro-organisms living in activated sludge. For ventilation fine-bubble aerators will be used. The chain scrapers will be put into the settlement tanks. Drum mains filter for stabilisation of discharge from reservoir will be stepped in the place of discharge from waste treatment plant. Sludge management will be complemented with mechanical sludge thickening and the existing gravity sludge thickening tanks will be used for homogenization before dewatering and the current belt press will be replaced by separator. Due to this renovation of WWTP there will be about 10% margin for increase of possible inflow and pollution. Rekonstrukce čistírny odpadních vod Klášterec nad Ohří
Čistírna odpadních vod Klášterec nad Ohří je mechanicko - biologickou čistírnou s primární sedimentací a studeným vyhníváním vyprodukovaných kalů s kapacitou 18 330 EO.
Vyčištěná voda je vypouštěna do řeky Ohře.
ČOV slouží k čištění odpadních vod z Klášterce nad Ohří.
Do aktivace bude doplněna nitrifikace, předřazená denitrifikace a simultánní odstraňování fosforu. Hrubé předčištění bude doplněno o lapák štěrku, o separátor písku.
Stará část ČOV bude upravena na dvojici usazovacích nádrží a na havarijní a akumulační jímku. Biologický stupeň bude vytvořen z nové části ČOV. Dosazovací nádrže budou postaveny nové kruhové průměru 17 m. V kalovém hospodářství bude doplněno strojní zahuštění kalu, jímka na kalovou vodu a jímka na dovážené fekální vody včetně příjmové fekální stanice. Kapacita ČOV bude zvýšena o cca. max. 10 %. pro možnosti zvýšení výhledového přítoku i znečištění.
Reconstruction of waste water treatment plant Klášterec nad Ohří
The waste water treatment plant (WWTP) Klášterec nad Ohří is the mechanical-biological cleaning plant with capacity of 18 330 PE and with primary settlement and cold sludge digestion. The clarified water is let-out into the river Ohře.
WTP serves to waste water cleaning from Klášterec nad Ohří.
Into the activation nitrification, superposed denitrification and simultaneous phosphorus removing will be supplemented. Precleaning will be completed by grit trap and sand separator.
The old part of WWTP will be modified to the couple of sedimentation tanks as well as to emergency collector and storage tank. Biological degree will be made from the new part of WWTP. The settlement tanks will be newly built in the avarage of 17 meters. Sludge management will be completed by mechanical sludge thickening, sludge water sump and faecal water collector included the faecal station. WWTP capacity will be increased about max. 10% for the possible inflow and pollution.
Reconstruction of waste water treatment plant Kadaň
The activation will be completed by nitrification, preliminary denitrification, simultaneous phosphorus removing and the water levels will be increased through the use of pumping. The manual operated coarse screen will be settled as well as sand separator, sand trap will be renovated, the pumping station will be built, the nitrification tank No.2 will be finished and settlement tanks will be restored. The tertiary degree of pureification will be newly established together with faecal water collector and sludge sump.
Reconstruction of waste water treatment plant Údlice
Waste water treatment plant Údlice is the classical mechanical-biological cleaning plant with gravity flow, primary sedimentation and mesophilic sludge digestion with capacity 50 183 PE. Purified water is let-out into the river Chomutovka.
WWTP is necessary for waste water purification only from Chomutov and Údlice, without the housing estates Kamenná, Zahradní, Písečná and the part of housing estate Březenecká.
The activation will be supplemented by nitrification, preliminary denitrification and simultaneous phosphorus removing. At the waste water treatment plants there will be coarse screen, grit trap, the couple of mechanically raked fine rack, faecal station for imported sludge from Chomutov and Jirkov, two whirl-type sand traps, primary sedimentation and separation of rain inflow. The aeration system into nitrification will be completed and the air production and its distribution will be reinforced. In sludge management there is a suggestion of separated mechanical thickening of excess sludge from primary sludge. The existing digestion tank will be restored and completed by the secondary degree of digestion. The new storage tank, object of thickening and dewatering will be built.
Reconstruction of waste water treatment plant Žatec
Waste water treatment plant Žatec is the classical mechanical-biological cleaning plant with primary sedimentation and mesophilic sludge digestion and capacity 33 333 PE. Purified water is let-out into the river Ohře. WWTP is needful for treatment of waste water from Žatec.
Sand trap will be settled by new machinery for ventilation, exploitation, washing process, sand transport and its by-pass will be realized. Sedimentation tanks will be placed in the left part of the combined tanks and in the right part there will be emergency collectors and storage tank created. Rain water will be pumped there. Biological waste water treatment – two lines of circulating activated sludge process with simultaneous nitrification and denitrification will be established. The existing storage tanks will be rebuilt to the imported sludge sump, organic substrates tank and sludge water sump. The activation will be complemented by fine-bubble aeration system and two new settlement tanks at average of 21 meters. In the place of sewage discharge there will be situated a water meter – Parshall´s trough. Sludge management will be implemented by mechanical sludge thickening and for dewatering it will be at point of sludge centrifuge. Sludge management is sized also with respect to possible import of organic substrates and sludge from neighbouring small waste treatment plants. The new dry membrane gas tank will be made.
Information on the particulars of a contract on work:
Execution of a work: November 2004 – 30th June 2006
Total price: 12.949.796,31 Euro
Investor: Severočeská Vodárenská společnost a.s. (North-Bohemian Water-supply Company Inc.)
Project is cofinanced by European Commission and by the Czech State Environmental Fund
Contractor: Alliance companies of Podkrušnohoří – WWTP
Civil engineer: Babtie Group Limited + VOD-KA Inc. + HPP public company
General designer:Severočeská vodovody a kanalizace a.s. (North-Bohemian water conduits and sewerage Inc.), Útvar projekce Liberec (Project section Liberec)
Operator: Severočeská vodovody a kanalizace a.s. (North-Bohemian water conduits and sewerage Inc.) Závod ČOV (WWTP)
Group of measures No. 3 –Completion of the sewerage network in Ústí nad Labem
The contract work agreement was signed with the successful candidate for the group of measures No.3 - Completion of the sewerage network in Ústí nad Labem - „Road and Railway Construction Inc., Prague, Branch Office Ústí nad Labem“ in October 2004.
The main objects of reconstruction are the following buildings:
- Ústí nad Labem – sewage conduit Z2
- Ústí nad Labem – network measure, Masarykova street I, enhancing the sewage conduit capacity
- Ústí nad Labem – network measure, Masarykova street II, enhancing the sewage conduit capacity
- Ústí nad Labem – network measure, reconnection of Stříbrnický brook
- Ústí nad Labem – network measure, Žukova street, sewerage renovation
- Ústí nad Labem – sewage conduit O
- Chabařovice – sewerage to Ústí nad Labem
- Povrly – sewage conduit Z2
Ústí nad Labem – sewage conduit Z2
The construction is situated in the centre of Ústí nad Labem. Sewage conduit Z2 starts at the crossroad near Bridge head where it follows the sewage conduit Z1 which was built in 1998. Routing of the newly constructed sewerage continues through the Hrnčířská street, through the southern part of Mírovo square, then along the Revoluční street and it finishes at the crossroad of Revoluční and Masarykova street where it enters the existing sewage system from the Masarykova street. The sewage conduit Z2 continues in the routing of current sewerage and it compensates the old one because of the modification of its fall-out and profile.
Project capacities : gravity sewage conduit – total length 710,0 meters
Pipeline – glass-fibre reinforced tubes DN 100
Ústí nad Labem – Network measure, Masarykova street I, enhancing the sewage conduit capacity
The construction is led through the city centre – through Masarykovo street and it is the enhancing of current sewerage system and liquidation of the existing strom overflow chamber. Sewage condiut starts at point of shaft (drop wall) at the crossroad with Revoluční street and there it follows the sewer Z2 and continues along the theatre, museum, park, shopping centre up to the hotel Vladimír where it ends at the crossroad of the Masarykova and Londýnská streets. Part of this construction is also the reconnection of sewerage outlet in the Londýnská street which is formed by the sludge pumping station and force main that is attached to the sewer in Masarykova street.
Project capacites: gravity sewage conduit – total length 707,0 meters
pipelines - glass-fibre reinforced tubes DN 1600 and DN 1400
force main – total length 43 m
pipeline – HD PE sewage pipes DN 80
pumping station – 1 piece and sewer connection nn of total length 20,0m
Ústí nad Labem – network measure, Masarykova street II, enhancing the sewage conduit capacity
The construction goes down the Masarykova street and the main objective is enhancing of the current sewerage system and abolishment of the existing overflow chambers. The sewage conduit starts under the crossroads of Masarykova – Šaldova – Herbenova streets and it leads in the way of the current sewerage system in Masarykova street and it ends at the crossroads of Masarykova – U Stadionu streets.
Project capacities: gravity sewage conduit – total length 797,0 meters
pipelines - glass-fibre reinforced tubes DN 1000, DN 800 and DN 600
relaying of water-supply LTH DN 125 – total length 674,0 meters
Ústí nad Labem – network measure, reconnection of Stříbrnický brook
The construction resolves water diversion from the Stříbrnický brook outside the existing sewage conduit as well as the rainwater diversion from the housing estate Severní Terasa right in the river Elbe. This is made possible by the new overflow chamber which is situated at the entrance to Bertino valley.
Project capacities: overflow chmaber – 1 piece
pipelines - glass-fibre reinforced tubes DN 1100, total length 35,0 meters
Ústí nad Labem – network measure, Źukovova street, sewerage renovation
The main subject of renovation is construction of the new sewage conduit in the place of the existing sewerage system in the Źukovova street and in the area of Střekov. The construction begins at point of sewer connection into the current sewer X at the Střekov riverside and it goes on into the crossroads of streets Źukovova – Děčínská (under the railway underbridge). The sewage shafts will be exchanged in the area of Žukovova street up to the crossroads with Karla IV. street.
Project capacities: gravity sewage conduit – total length 373,0 meters
pipelines - glass-fibre reinforced tubes DN 1000 and DN 600
sewage shafts – 30 pieces
Ústí nad Labem – sewage conduit O
The construction includes the sewerage delivery and the waste water pumping station. The main aim is blocking and waste water discharge from the area of Krásné Březno because nowadays it is drained off without cleaning right into the river Elbe. A pumping station will be located on the grass land next to the Přístavní street.
Project capacities: force main – total length 574,0 meters
Pipelines – HD PE tubes DN 100
Pumping station – 1 piece and connector nn for 160,0 meters
Chabařovice – sewerage to Ústí nad Labem
The construction resolves building a sewerage collector by which waste water will be diverted from the town of Chabařovice to the Ústí nad Labem sewerage system. Along the road there will be also sewer connection from Staré Předlice. A route of the sewer connection begins at point of connection to the existing sewerage network in Předlice at church of St. Salvator. Further the collector continues through the parkway into Staré Předlice, towards the former municipality of Hrbovice, after the parkway in the direction of Chlumec the line of sewers continues along the Ždírnický brook to Chabařovice, where is the delivery part of the collector. Otherwise the reconnection of other sewerage flows in Chabařovice (in the amount of 10) is being solved.
Project capacities: gravity sewage conduit – DN 500, total length 547,0 m
gravity sewage conduit – DN 300, total length 2 962,0 m
force main – DN 200, total length 500,0 m
force main – DN 125, total length 175,0 m
force main – DN 100, total length 24,0 m
pumping station – 4 pieces + connectors nn for 497,0 m
Povrly – sewerage to Ústí nad Labem
The construction resolves waste-water discharge from the town of Povrly to the city-wide sewerage system of Ústí nad Labem. It deals with combination of gravity and delivery sewerage whose route goes along the main road No. I/62 and along the railway Ústí nad Labem – Děčín. It begins in Povrly in the place of the car park of Měď Povrly Company and it ends with connection into the current sewer in Vodařská street in Veselí (Mojžíř).
Project capacities : gravity sewage conduit – DN 300, total length 370,0 m
force main – DN 100, total length 1150,0 m
force main – DN 150, total length 1601,0 m
pumping station – 2 pieces + connectors nn for 85,0 m
Information on the particulars of a contract on work:
Execution of a work: November 2004 – 31st May 2006
Total price: 6.175.100,21 Euro
Investor: Severočeská Vodárenská společnost a.s. Project is cofinanced by European Commission and by the Czech State Environmental Fund
Contractor: Stavby silnic a železnic, a.s., Praha, Branch office Ústí nad Labem
Civil engineer: Babtie Group Limited + VOD-KA Inc. + HPP public company
General designer:Severočeská vodovody a kanalizace a.s., Project section Liberec
Operator: Severočeská vodovody a kanalizace a.s., the Ústí nad Labem plant