Lime Treatment: New Perspectives for the use of Silty and Clayey Soils in Earthen Hydraulic Structures
© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2013)
This paper describes the SOTREDI project, “Soil TREatment for Dikes”, undertaken by Lhoist Group, a lime producer, since 2005. This project was led in partnership with research centres and universities, and presents new perspectives for the use of soils in hydraulic context. The objective was to demonstrate that soil treatment with lime, besides enhancing the materials workability, confers high levels of mechanical properties and low permeability values. Lime-treated soils also offer a reduction of piping and internal erosion hazards, and significantly increase the erosion resistance against overtopping and overflowing.

Pressure of Urbanisation and a Sustainable Sanitation Infrastructure: Experiences with a Research-Driven Planning Method in Northern Namibia
© DIV Deutscher Industrieverlag GmbH (9/2012)
Improvements in sanitation infrastructure in developing countries are of major importance. CuveWaters, a research project working in the north of Namibia, is piloting decentralised technologies for water and sanitation. Technologically sophisticated concepts can easily clash with users’ needs and everyday behaviour. There is not always a shared understanding of planning and maintenance. A demand-responsive approach has therefore been developed. It aims to support the planning and implementation process and to include stakeholders prior to intervention, thus allowing mutual learning as a basis for a sustainable transformation process in urban areas. This paper discusses method development, empirical application and results.

Biofilms on aged Materials in Household Installation Systems
© DIV Deutscher Industrieverlag GmbH (8/2010)
The causes of contamination originate in the water itself and on materials in contact with water. Drinking water is not sterile and does not have to be. Water treatment plants’ strategy consists in removing the nutrients that bacteria feed on to produce “biostable” drinking water. This allows in many cases chlorination to be avoided. But it is known that even biologically stable drinking water with very low nutrient content still contains micro-organisms. These micro-organisms can multiply themselves if they encounter nutrients.

Rehabilitation of potable-water and high-pressure gas pipelines in individual lengths of up to 600 m
© Vulkan-Verlag GmbH (12/2004)
Fabric-hose relining for rehabilitation of high-pressure gas pipelines with 30 bar operating pressure and water transmission pipelines up to 40 bar

Integrated management system based on the EFQM model Systematic corporate management
© Vulkan-Verlag GmbH (11/2004)
Europipe GmbH, of Ratingen, Germany, produces large-caliber linepipes in high-strength steels, primarily for the construction of gas, oil and water pipelines for high-pressure operation.

Economic Considerations in Flood Risk Management
© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (9/2004)
Elaboration and utilization of sound economic information are highly relevant for decision-making in integrated flood risk management. This strategy aims at the development and execution of flood action plans which combine measures of natural flood retention, technical infrastructure and further-reaching precautionary activities.

International Comparison of Methods for the Design of Sewer Linings
© Vulkan-Verlag GmbH (8/2004)
Participants of the International Trenchless Technology Research Colloquium (ITTRC) decided in the year 2001 to design CIPP (Cured in Place Pipe) liner examples for a circular and an egg shaped sewer.

Wastewater Treatment in Developing Countries, the Use of Physico-Chemical Processes for Achieving Affordable Disposal Schemes
© TU MĂĽnchen - Lehrstuhl fĂĽr Siedlungswasserwirtschaft (7/2004)
Physico-Chemical treatment has the potential of serving as the innovative affordable treatment technology needed to boost wastewater treatment in developing countries.

Anti-corrosion protection of the AC-exposed “Isar line” against the background of changing times and technology: 1976 – 2004
© Vulkan-Verlag GmbH (7/2004)
Using the example of the "Isar line", the following article provides an approximate summary of the provisions implemented for avoidance of corrosion in buried steel pipes and valves.

Quality Assurance of HFI-Pipes
© Vulkan-Verlag GmbH (3/2004)
To ensure a constant high quality at the production of longitudinally welded line pipes with the HFI-technology an extensive quality management system is indispensable.

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