SeDox
For phosphate binding with controlled sustained release
Nutrient Control
"Agricultural fertilizer run-off and wastewater discharges are two of the main nutrient sources that can lead to an oversupply of nutrients, specifically phosphorus (P) and nitrogen (N) into our freshwaters. An excess of nutrients disturbs the natural balance of a system and can promote algal/cyanobacterial growth which can form frequent and intense blooms. When algal cells age and die, they sink to the sediment where they are microbially degraded. These bacteria use oxygen to break down the algal cells and when there is a lot of organic matter to be decomposed, it can lead to oxygen depletion. This can jeopardize other aquatic organisms' survival, ultimately leading to a loss of biodiversity.
Maintaining a well-regulated nutrient balance in aquatic ecosystems is essential for preserving ecological stability. When nutrients are balanced, it can promote biodiversity, as species thrive in a stable environment. When P, N and carbon (C) are present in the right proportions, the water body is in a nutrient balance that controls and promotes the growth of all aquatic organisms. The Redfield Ratio, the ratio of C, N and P atoms (106:16:1), originally observed in marine phytoplankton and seawater, represents the average atomic requirements for algal growth. However, this ratio can vary in freshwater systems due to water bodies being P limited, having variations in water residence times and changes in nutrient dynamics etc. However, it is still an important indicator of nutrient balance within freshwater ecosystems.
Targeted in-lake measures, such as the use of P binders, can bind excess P to reduce concentrations within a system with the aim of restoring the ecological balance within a water body. This can promote a stable, species-rich environment. A balanced body of water is not only aesthetically pleasing, but also vital for biodiversity, water quality and the ecosystem services that freshwater provides society. Being able to control excess nutrients contributes significantly to the prevention of algal blooms and supports the long-term health of aquatic ecosystems."
