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040 Customer Projects Environment and Process Business Area Interview with Ioannis Margiolos, Environmental Business Unit Director, AKTOR S.A. ENERGY EFFICIENT, ENVIRONMENTALLY SOUND Experience I have worked for AKTOR as Director of the Psyttalia Wastewater Treatment Plant for the past eight years, but I have over 20 years of experience in project management. I hold a degree in electromechanical engineering from the National Technical University of Athens. The sludge drying project In March 2006, the joint venture between AKTOR S.A. and Athena S.A. was awarded the contract for designing and building a thermal sludge drying plant for KELPS. The total investment cost was EUR 30 million. The drying plant started operation in June 2007. Experience with Andritz Before this project, I did not have any experience with Andritz. Because of this, I had questions about the company and its capabilities for a project of this size. But after visiting some of their reference installations in Europe, I was favorably impressed. As an Environmental Business Unit Director for AKTOR, I am now responsible for the construction of a sewage treatment plant in the United Arab Emirates and a wastewater treatment plant in Bucharest. It is a challenge for me to work on these two projects so far away from each other, but it makes my life interesting. The KELPS facility KELPS (The Wastewater Treatment Plant of Psyttalia) is located on the island of Psyttalia. It is the second largest wastewater treatment plant in Europe and one of the world’s largest. KELPS receives urban sewage and pre-treated industrial wastewater from the greater Athens area – population equivalent 5.6 million people. The plant has a capacity of 1,000,000 m 3 per day. In 2006, the daily average wastewater flow treated amounted to 705,000 m 3 . The plant is designed in accordance with the EU’s Wastewater Directive for the year 2020. The plant consists of four drying lines with a total capacity of 34.5 tons of evaporated water per hour (300 tons of dried sludge per day). The plant is very energy efficient. The average consumption of thermal energy is 917 kWh/t of evaporated water. The energy comes either from direct heating or from biogas created by the digesting process. Up to 80% of the total energy required is recovered from the cogeneration plant. The treated odorous gases are passed through three regenerative thermal oxidizers before being released to the atmosphere. Andritz’s contribution Andritz engineered and manufactured the main equipment for the sludge drying plant: drying drums, pre-separators, polycyclones, condensers, screening system (to turn very small particles of dried sludge into the proper granulate size), cooling system for the final product, and even the pneumatic transportation of the final product to the storage silos. Performance Andritz’s performance during this entire project was a pleasant surprise. They delivered the drying drums very fast so that the building could be constructed around them. They worked with us step-by-step toward completion of the project. The level of cooperation was excellent. Andritz met all of its schedule commitments. The cost in relationship to the quality of the installation was sufficiently low, and the safety measures they took during the project protected workers against accidents. After-sales support After six months of operation, we are really happy to say that we have achieved all our contractual commitments and we are grateful to Andritz for that. Andritz was a reliable and supportive supplier. Even after the start-up, they continued to help us achieve our good results. I honestly feel that I can rely on them just like with good friends. With the completion of Phase A (primary sewage treatment) in 1994, the pollution load was reduced by 35%. When Phase B (secondary biological wastewater treatment) was completed in the summer of 2004, the pollution load was reduced by 93% and the nitrogen load was reduced by 80% (through tertiary treatment). So the plant’s operation has significantly improved the water quality and environmental cleanliness of the Saronic Gulf. Andritz’s technology dries the sludge from 25% to a minimum of 90% dry solids content. The granulate diameter is 1-5 mm for at least 93.5% of the final product. The most important factors to me when selecting a supplier are the technology used, the quality of the equipment, highly qualified manpower, and the service provided. Andritz satisfies all of these factors. If only all my suppliers were just as knowledgeable and responsible as Andritz is. ANDRITZ Global Top Products 2007
Customer Projects Environment and Process Business Area 041 Andritz has delivered Europe’s largest sludge drying plant to the Wastewater Treatment Plant of PSYTTALIA/ATHENS, Greece. [1] The sludge drying plant consists of four identical drying lines with a total nominal capacity of 34.5 tons of water evaporation per hour. The drying process can be fueled by natural gas as well as biogas. Photo: Drying drum, furnace, and burner of one line [2] Dried sludge (granulate) loading station. The granulate can be used as a substitute for fossil fuels in heat and power generation systems or for soil improvement. [3] Andritz provided a complete supply and services package consisting of engineering, purchasing, manufacturing, supervision of erection, and start-up of the drying plant. Photo: View of the individual levels [1] [2] ANDRITZ Global Top Products 2007 [3]
Page 1 and 2: Global Top Products Annual REPORT 2
Page 3 and 4: Key Figures 00 KEY FIGURES 2003-200
Page 5 and 6: Global Top Products 00 GLOBAL TOP P
Page 7 and 8: Sustainability and Corporate Respon
Page 13 and 14: Vision 013 VISION World market lead
Page 15 and 16: Global Presence 015 . . . with more
Page 17 and 18: The Financial Year 2007 017 Net wor
Page 19 and 20: The Financial Year 2007 019 major o
Page 21 and 22: Contents 021 Development of the And
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Page 47 and 48: Letter from the Executive Board 047
Page 49 and 50: Company Boards 049 SUPERVISORY BOAR
Page 51 and 52: Andritz Share 051 Investor Relation
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Page 55 and 56: Corporate Risks 055 CORPORATE RISKS
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Business Areas Environment and Proc
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Business Areas Environment and Proc
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Business Areas Feed and Biofuel 097
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Business Areas Feed and Biofuel 099
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Andritz Automation 101 ANDRITZ AUTO
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Manufacturing, Procurement, and Qua
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Manufacturing, Procurement, and Qua
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Human Resources 107 Highly qualifie
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Locations of the Andritz Group 109
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Technical Glossary 115 EPC Engineer
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Financial Glossary 117 MEUR Million
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Andritz AG Stattegger Strasse 18 80
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