Wastewater Treatment Plant And Tank Construction Services
From Civil Construction
Company Angerlehner Hoch- und Tiefbau Gesellschaft mbH has 25 years of experience in the field of construction of tanks and wastewater treatment plants. Scope of works range from common construction works of tanks and wastewater treatment plants to turnkey projects - construction of ready-for-use plants.Difficult geological circumstances as well as construction of tanks and wastewater treatment plants in aquiferous soil ask for special technologies. For example groundwater lowering with well (WWTP Markersdorf and Zeltweg, Austria), vacuum filter (WWTP Laa an der Thaya, Austria) or compaction of soil with vibrofloating compaction in combination with sheet piling (WWTP Wiener Neustadt South, Austria). Furthermore, groundwater lowering in secured excavation pits is executed with several pumps including hoses which transport water into the required sedimentation tanks.
Due to poor bearing capacity of the soil and to guarantee safety against uplifting the following measurements can be executed: pile foundation, borehole anker for grouting or application of HDPV (safety against uplifting of a circular tank, diameter 50 meter, with anker, for example). Sheet piling as well as securing via inject concrete is an often executed method to an excavation pit.
Concrete and reinforced concrete works are executed by Angerlehner Hoch- und Tiefbau Gesellschaft mbH in accordance with guidelines of „Watertight concrete construction“ of the „Austrian Federation of Concrete and Structural Engineering.“ Experienced and well trained project teams always know the state-of-the-art technologies due to their close collaboration with concrete and sheating suppliers.
Depending on the size and technology of the wastewater treatment plant, there are different types and sizes of constructed plants. A few examples:
- 120 meter long rectangle tank in Wiener Neustadt South, Austria
- circular tank with a diameter of 50 meter in Lenzing, Austria
- effl uent pumping station at Zeltweg, Austria
In addition to construction of basins and tanks, installation of headrace and outlet pipelines is very important. Pipelines with a diameter of up to 2.000 mm of different materials like concrete GF-UP or steel can be installed. 25 years of experience benefit the execution of pipeline construction. Next to earth, concrete and reinforced concrete works, professional works like tiler, locksmith, plumber and roofing works, just to name a few, are executed, which occur when constructing a wastewater treatment plant or tanks.
As turnkey contractor, company Angerlehner Hoch- und Tiefbau Gesellschaft mbH offers a masterplan including state-of-the-art mechanical and electrical equipment working in close collaboration with well-known civil engineers. Design, planning and turnkey construction were executed at the wastewater treatment plants Laa an der Thaya, Austria and Vinkovci, Croatia. When extending existing plants it is very important not to disturb the running operation or, if necessary, close down the plant as short as possible. Before starting construction works, measurements like rerouting of pipelines are normally executed in close collaboration with the management of the wastewater treatment plant.