Floating wetlands: a cleaning solution for polluted farm dams
The availability of usable fresh water is one of the main limiting factors to South African agriculture; the country experiences large annual and in-season variability in its supply of fresh water.
Farm dams are therefore an essential source of water for agricultural activities, as they bridge the gap between low- and high-flow periods by providing an efficient means for storing water.
Unfortunately, farm dams are prone to nutrient pollution, resulting in poor water quality. Increased nutrient levels lead to excessive algal growth, which can, in turn, result in the emission of
