Ressourceneffiziente Nutzung von Wasser in Anlagen zur Serienlackierung von Automobilkarosserien

Cleaning, conversion coating, and electrocoating are typical wet‐chemical process units in high‐volume painting plants for car bodies. These surface treatment processes must meet ever higher demands in terms of quality, cost savings, and environmental compatibility. Besides the efficient use of energy, the conservation of water resources plays a key role, for which both the integration of existing and the development of new technologies for process bath care are essential core elements. This article discusses the use of various state‐of‐the‐art technologies.     

Reinhaltung von Luft und Wasser bei der Verarbeitung von Lacken I

Maintenance of Clean Air and Water in the Manufacture of Paints I Pollution laws, exhaust limitation of drying ovens, suitable measuring procedures etc. should enable to achieve purer exhaust air. Water pollution law aims at preventing contamination caused by detergents, by storage of heating oil and solvents, trickling chambers, cleaning of barrels, electrophoresis etc.     

Gas-Chromatographie und Umweltschutz Beitrag zur gas-chromatographischen Untersuchung von Wasser

Gas Chromatography in Environmental Safety: A Contribution on Gas Chromatographic Investigation of Water In the present communication, the significance of gas chromatographic investigation of water in environmental safety is outlined. The detection of mineral oil, gasoline, petroleum, various organic solvents and pesticides on various columns is reported along with specific mention of instrumental parameters. The analytical chemist is quite often faced with a difficult task, because of the complexity of possible impurities in water. Besides the constant pollution of rivers and lakes with more or less well clarified water from the civic communities, it is mainly the pollutions caused periodically by industrial effluents and those due to disposal of toxic substances from factories, either intentionally or by negligience, that are of major significance in the analysis of water. In addition, materials stored in underground tanks, basements and garbage depots pose a standing threat to ground water.     

Der Einfluß von Wasser,Tensiden und Buildern auf das Haften von festen Teilchen

The Influence of Water, Tensides and Builders on the Adhesion of Solid Particles The investigations have confirmed experimentally that water alone as well as tensides and builders really ease the removal of solid particles from smooth surfaces by considerably reducing the adhesive forces. In addition, the work has led to a more precise idea of the mechanism of adhesion and removal of pigment dust.