Abfallwirtschaft

Die Abfallwirtschaft ist in Deutschland durch die Gesetzgebung und die Interessen von Konzernen in die Richtung von Großverbrennern gegangen, obwohl es die teuerste Methode darstellt. Unsere öffentliche Kritik schon 1990 an diesem Vorgehen hat sich nun als eindeutig richtig herausgestellt, da sich für 20 und 30 Jahre unkündbare Verträge mit festen Preisen auf der Basis von z.B. 1995 ergeben. Ein Kernproblem der Verbrennung ist der Heizwert des Mülls, der praktisch nur über die Kunststoffe gehalten wird. Diese Kunststoffe werden weitgehend recycelt, so dass nur noch die Plastikwindeln (ca. 2 – 3 % des Hausmülls) als Energieträger vorhanden sind. Wenn diese Windeln dann auch noch entfallen – es laufen Entwicklungen von Zellulose-Windeln die kompostierbar sind – muss zur Heizwertstabilisierung eine aufwändige Stützfeuerung eingesetzt werden. Im Ausland gibt es bereits eingespielte Recyclingmärkte, die für die arme Bevölkerung – sogenannte Wastepicker – die gesamte Lebensbasis bilden.

Public Private Partnership BIOPUSTER Maringá Brasil

Building project: waste treatment unit Specification: The target of this project is to install a state-of-the-art waste treatment unit. On the site first all the deposited waste is to be treated by new sorting and rotting facilities. In a second step, all the municipal waste of the City of Maringa is to be treated on site. The chosen BIOPUSTER® - process offers the opportunity to convert the organic fraction (55 to 60 %) of the waste into mulch, compost or natural fertilizer. The remaining components of the waste are sorted and prepared for complete recycling. Plastics, glass, paper, cardboard and textiles can be recycled in several ways. The waste treatment unit will have a capacity of 400 to/d or 120,000 to/year. The solution offers additional effect: the aerobic pre-treatment of waste reduces the methane (greenhouse-gas ) output. Therefore the legal structure of this project now provides the possibility of the benefits of certified emission reductions (CER). Constructor: Herr Peter Peters, Senior Investment Manager DEG Deutsche Investitions- und Entwicklungsgesellschaft mbH Belvederestrasse 40 D-50933 Köln Construction period: since 2006 Building costs: 9,000,000 Euro Achievement: The consulting office Prof. Dr.-Ing. W. Hartung + Partner GmbH provides all technical know-how to this project. The project is managed in cooparation with our Partner in Brasil: BIOPUSTER América Latina Ltda., Rio de Janeiro.

Ministry of Environment and Mineral Resources, Uyo, Government of Akwa Ibom State, Nigeria

Building project: Uyo Solid Waste Management Site Specification: Waste dumpsites which are not operated in accordance with standard and effective environmental regulations cause enormous environmental problems by exposing water, earth and air to pollutions, thereby endangering the vital components of live and nature that need to be protected. Through water, earth and air the harmful substances get into the food chain or directly into the human body. The lasting risks to the human health call for an urgent solution for waste problem especially as the world population increases at high rate with decrease in the biosphere. AKWA IBOM STATE and especially Uyo capital city is presently facing the problems of contaminated grounds with disastrous consequence emanating from indiscriminate waste disposal. Our team offers the opportunity to convert 57 % of the waste into mulch, compost or natural fertilizer. The remaining components of the waste are sorted and prepared for complete recycling. Plastics, glass, paper, cardboard and textiles can be recycled in several ways. The waste treatment plant is planned for the removal of the domestic waste in Akwa Ibom State, Nigeria. In the first stage of project development, the complete waste treatment plant as well as a landfill section require approx. 14,500 m² with approximately 170,000 m³ installation volumes. This is adequate for 4 years operational period; when 60 % of the waste is disposed. Constructor: Ministry of Environment and Mineral Resources, Uyo Government of Akwa Ibom State, Nigeria Construction period: since 2005 Building costs: 20 Mio. Euro

Recylex - Harz-Metall GmbH

Building project: Recultivation of Landfill Site, Oker, Germany Specification: Metaleurop grew out of the 1988 merger between Société Minière et Métallurgique de Peñarroya, a company founded in 1881 and the non ferrous metals division of German company Preussag. Metaleurop is a group that is primarily located in France, Germany and Belgium, with some ten production facilities. Its business activities cover the recycling of lead and plastic (from car batteries), recycling zinc from the dust produced by electric powered steel works, the production of zinc and metal oxides for the electronics industry. Problem: The temperature of the disposal will not allow to cover the landfills with mineral material like clay, because this materials will dry out very soon and be permeable again. Plastic materials can only stand against a maximum temperature of 40 °C. Solution: The chosen top covering system is capillar barrier, which contents only of stable material like sand and gravel. There are no problems with high temperature or drying out. The consulting office Prof. Dr.-Ing. W. Hartung + Partner GmbH work on the factory site in Goslar – Oker, the Harz-Metall GmbH. Constructor: Harz-Metall GmbH Hüttenstraße 6 D-38642 Goslar – Oker Construction period: since 1995

British Petrol Peine
	Project: Underground Pollution by former oil production Specification: In more than 100 years the underground of this factory was contaminated by more than 2.5 Mill. Liters of oil (crude oil, benzene, tar, BTEX, CVOC). Our oilrecovery-system is a simple skimmer. Our works: sampling, risk assessment, supervision Projectmanager: Dipl.-Ing. M. Struve

PPM Pure Metalls, Langelsheim, Germany
	Project: Cu-Smelter dump site Specification: The underground of the smelter is extreme contaminated by heavy-metals. The remediation of more the 18 ha is part of our program Our works: sampling, risk assessment, supervision Projectmanager: Dipl.-Ing. M. Struve, Dipl.-Ing. D. Meyer

Volkswagen Werk AG, Wolfsburg, Germany

Project: Sampling and risk assessment for more than 1.5 Mio. tons of the channelproject in front of the factory of the VW-Group in Wolfsburg. Specification: The VW AG needs this soil for new construction areas in the neighbourhood. In our solution the VW AG earned money for the storage and reuse of this soil. Our works: Sampling, risk assessment and remediation of the VW-harbour. During the last 50 years the ground of the harbour was contaminated by the high toxic TBTO. The extent of the pollution was more than 61,000 tons. We finished the remediation by a daily rate of 1000 tons. Projectmanager: Dipl.-Ing. M. Struve

Natron AG, Langelsheim, Germany
	Project: Risk assessment, Natron AG Specification: The building, the soil and the groundwater were contaminated. Heavy-metals, CVOC, PAH, TPH and TBTO were typical pollutants. Our works: sampling, risk assessment, supervision Projectmanager: Dipl.-Ing. M. Struve

Paperfactory Offingen
	Project: Cleaning Paperfactory Offingen Specification: Different users had contaminated the underground and the building with toxic dust. In the picture you can see the grey dust. Our works: sampling, risk assessment, supervision Projectmanager: Dipl.-Ing. M. Struve

PPM GmbH Langelsheim
	Project: Bundesstraße B 82 Specification: For the remediation of the old smelter dump we have used slags and highly contaminated soils of the region for the dam of the new Bundesstraße B 82. During the works the contaminated area had to be covered by a geomembrane. Our works: sampling, risk assessment, supervision Projectmanager: Dipl.-Ing. M. Struve, Dipl.-Ing. D. Meyer