Dictionary of Water and Waste Management, Second Edition

A ghanat.
Karst is a terrain underlain by soluble rock such as limestone. Karst is mainly formed by the dissolution of rock to form caverns, sinkholes, disappearing streams etc. Karst water is water that discharges from karst limestone. The water has a high calcium content due to the dissolution of the limestone as the water passes through the rock.
A wind that blows downhill along a slope cooled by radiation, frequently at night. It may be the cause of an inversion.
Catabolic metabolism.
See cathode , cation.
A brown alga, a seaweed. This alga, sometimes used in a biotic index, grows near the low water mark.
A growth on the skin, such as a wart.
Waste from households and businesses left on the side of the road premises from where it is collected. Successful waste recycling schemes are often based on different collections for different parts of the waste stream. In particular, waste paper recycling requires separate collection of the paper.
Dry recyclables are put into a specific box by the householder. At collection, the box is sorted by the collection crew into different compartments on their vehicle at the collection point. See separate kerbside collections.
The valve that is used to shut off water between the...