WATER AND SEWAGE SYSTEMS
The performance of Trapp in charge of the management and construction of the Water purification and supply project in Alkaim/Akashat in Iraq ensured the turnkey delivery of this large-scale project in 1977 in a mere three years' building period. 150 kilometres distance had to be overcome in order to supply the phosphate mining region of Akashat with water. What was constructed in Alkaim was a complicated water intake point with sand traps. With the collaboration of the Leichtweiss Institute of the Brunswick Technical College, Trapp managed to determine the flow behaviour of the Euphrates with water fluctuations of over twelve metres so exactly that the intake area could be localised and dimensioned to be economically and environmentally efficient.
The principle building section in Alkaim included the water treatment plant for a minimum capacity of two cubic metres per second, comprising a distributor structure, four flocculation tanks (d = 55 metres), filter buildings with six chambers, 1,500 cubic metre water reservoir, second pumping station, operating building, machinery house, ancillary buildings, two reservoirs with a capacity of 10,000 cubic metres as well as three pumping stations.
As a follow-up order for the water supply in Alkaim/Akashat, a joint-venture including Trapp participating was awarded the contract for turnkey production of an industrial waste water treatment plant including asbestos basin, gypsum and slime disposal facilities in Alkaim for the same client.
Trapp supplied several biological container sewage purification plants for waste water treatment of townships in Nigeria in 1993/94. These highly modem facilities, inconspicuously landscaped, provide complete mechanical and biological purification for 50 to 1,250 inhabitants. Camps, residential blocks, scattered settlements, shopping centres, hotel facilities, etc. can be equipped with such plants. Trapp also designed, constructed and commissioned the potable water purification and supply plant. The contract scope included the design and construction of the sewage and fresh water pipeline networks.
Between 1999 and 2004 Trapp participated in the Cross River State Water
Supply Project in Nigeria where they constructed river water intakes,
pumping stations, reservoirs, control buildings and infrastructure works
At home, among many others, the Wesel-Flueren waterworks were extended while maintaining operations and modernisation and major extension works were carried out at the Sewage treatment plant in Wesel and new build plants in Schwalmtal and elsewhere throughout Germany.
Trapp have been building waterworks and sewage purification plants for years now including.
- Intake Structures • Separator Screens • Settling ponds
- Separator plants • Sedimentation basins • Activated sludge tanks
- Secondary sedimentation basins • Pumping stations
- Sludge digestion tanks • Percolating filters • Sludge treatment plants
- Canal and sewer construction (concrete pipes, plastic pipes, steel
and stainless steel pipes)
- Manhole structures • Composting plants • Dewatering
- Special foundations • Outfall structures • Storage ponds • Storm-water
- Associated structures • Operational buildings • Laboratory buildings
• External facilities
- Equipment • Finishing works
All work and services connected with sewage clarification plant construction is can be executed or managed turnkey by Trapp, including planning and process technology. Financing and operational services can also be provided.