Biological Purification System For Lake Water Using Floating Cork Plates Royalty-Free Stock Image

biological purification system for lake water using floating cork plates. absorption of phosphates and nitrates by the roots Biological purification-bioremediation system Often the organic matter accumulated (from leaves and animal excrement), from inefficient filtration and aeration systems to treat the receiving quantity of material, leads to lakes with dark waters. Biological purification is a nature-based solution which is being used in some lakes in Lisbon. Floating islands consisting of cork structures are an ecological solution which guarantee a healthy water balance, enabling the growth of plants at the surface of the water, and with that promoting an increase of oxygenation and improvement of the chemical water quality. These plants ensure the recycling of the excess of nutrients, recreating an environment similar to wetlands, such as an estuary. Plants, such as the pennyroyal, yellow iris, strapwort or soft rush, can be used in this solution contributing as well as the promotion of (urban) biodiversity.