Our glossary explains technical terms from the area water research. We hope it facilitates the understanding of this publication. If you have comments or suggestions, please use our
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Lamella separator
In lamella separators or clarifiers, particles are separated from contaminated water using lamellar honeycomb structures.
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Life-cycle assessment
A life-cycle assessment provides a comprehensive analysis of the entire product life-cycle and the associated ecological impact. The turnover of materials and energy during the life-cycle is also assessed, as are the resulting environmental consequences.
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Life-cycle costing
This calculation method indicates which costs occur at which points in a life-cycle, e.g. of a product.
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LNAPL
Most hydrocarbons (i.e. non-chlorinated compounds, See: DNAPL) are lighter than water and form phases that float on its surface (e.g. on groundwater). Organic liquids with densities less than 1 g/cm3 are known as light non-aqueous phase liquids (LNAPL). The most important LNAPL compounds are fuels (gasoline, kerosene, diesel), with heating oil EL being another example. The ->BTEX compounds are of particular relevance in this regard.
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Low-pressure membrane procedure
See: Membrane procedure.
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Low-turbidity
Water turbidity is caused by organic and inorganic suspended matter as well as by living organic substances that are hard to remove through filtration. Low-turbidity water has a greater level of clarity and can be cleaned by means of slow filtration.
