184 Used software: Nexis, ESA-Prima Win ACO Clara sewage treatment plant This project regards a treatment plant for sewage; it is designed for the complete biological purification of domestic waste water. The mechanical pre-treatment part is formed of a sedimentation tank with a high buffer area volume. The biological part of the ACO Clara consists of an activation tank and a built-in final sedimentation tank. The activation tank is aerated by micro-bubble aeration. The analysis part of the project consisted of the stress check and stability analysis of the polypropylene tank of the plant. The complicated geometry of the tank was modelled including all of the technological pipes and inner parts to optimize the polypropylene material consumption. The finite element stability analysis using the iterative solver was used to prove the critical multiplier of the loading greater than 2 ensuring buckling resistance of the tank. ACO Industries k.s. Contact Jiří Loníček Address Havlíčkova 260 582 22 Přibyslav, Czech Republic Phone +420 569491232 Email [email protected] Website www.povrchoveupravy.cz ACO is present with independent companies in over 40 countries on all continents. ACO has its own production sites in 12 countries including Australia and the USA. At the same time as respecting national cultural differences, the focus of our marketing activities is always the ACO brand with its excellent image, high quality standards and unique competence. ACO Group is the worldwide leader in the manufacture and supply of corrosion-resistant polymer concrete and stainless steel drainage systems for external and internal applications. With more than 40 years of valuable experience in the removal and containment of wastewater, ACO is now entering the field of wastewater management with systems for the treatment and re-use of grey water. ACO’s modern, state of the art manufacturing plant produces high quality products which are used in projects world-wide. CAE Special Projects 5 Short Description Characteristics and application ACO Clara sewage treatment plants are designed for the complete biological purification of domestic waste water: Treatment process • Mechanical pre-treatment • Biological treatment by activated sludge • Final gravity sedimentation Technical data • Diameter D [mm] 2350 • Length L [mm] 2870 • Width W [mm] 2440 • Height H [mm] 2640 Technology description The ACO Clara sewage treatment plant consists of a mechanical pre-treatment part and a biological compartment. The mechanical pre-treatment part consists of a sedimentation tank with a high buffer area volume. The sewage water enters the ACO Clara unit via the inlet pipe and flows into the buffer area of the common buffer and storage tank. Settable solids fall to the bottom of the tank and floating matter is caught by a scum board, thus protecting the raw sewage air lift pump against blockage. Hydraulic peaks at the inlet of ACO Clara sewage treatment plants are absorbed in the buffer area. The pre-treated water is then pumped at a uniform flow rate from the buffer area into the biological part of the plant. Hydraulic peak equalising considerably increases the stable purification efficiency The biological part of the ACO Clara consists of an activation tank and a built-in final sedimentation tank. The activation tank is aerated by micro-bubble aeration. The water goes from the activation tank into the final sedimentation tank, which enables treated water to be separated gravitationally from activated sludge. The treated water flows out of the sewage treatment plant through the outlet connection. The activated sludge falls to the bottom of the final sedimentation tank, from where it is pumped back Owner: ACO Industries k.s. Architect: ACO Industries k.s. General Contractor: n/a Engineering Office: ACO Industries k.s. Construction Start: 12/10/2008 Construction End: 20/10/2008 Location: Přibyslav, Czech Republic Project Information
RkJQdWJsaXNoZXIy MTgyMDE=