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Eutrophication in Indian Rivers: - Coggle Diagram
Eutrophication in Indian Rivers:
Causes
Increasing amount of Phosphorus & Nitrogen
uncontrolled growth of primary producers
Oxygen depletion owing to decomposition of algal organic matter
Treatment Ideas
Reacting Phosphorus and Nitrogen with other elements to reduce their concentration.
Microalgae use Nitrogen and phosphorus for their own growth thereby reducing their concentration in water bodies.
Preventing soil erosion by using villi type structure to hold soil in farms
Ultrasonic Irradiators whose process works by causing cavitations that produce free radicals that destroy algae cells.
Using biomimicry, replicate filtration systems of salpas and devil rays to filter surface water and redistribute nutrients.
Filtering sewage wastewater using aeration tank
Detection Ideas
Using Machine learning to detect Eutrophication region-wise
Using Sensors to collect live status of water body
Turbidity Sensor
(SKU SEN0189)
pH Sensor
(InPro3100)
Temperature sensor
(PT-100)
Optical analyzers (for detecting Nitrogen)
Drivers of Eutrophication
Soil Erosion
Erosion of non-water soluble nutrients in water bodies.
Wastewater Flow
Industries like paper, meat, agroindustries, etc.
Sewage disposal
Livestock Intensification
Aquaculture
Increasing flow of manure
Concentrated Animal Feeding Operations
Increased Fertilizers consumption
Microalgae Biomass can be used to produce
High-value pigments
Fish and animal feed
Biofertilizers
Carbon-neutral fuels
Bioplastics
Carbon dioxide mitigation
Why using Microalgae is a good approach ?
The turbidity and pH of wastewater could inhibit microalgal growth.
Microalgae could utilize the abundant sunlight that falls on the surface of wastewater as their energy requirement for growth and the simultaneous removal of pollutants.
They release oxygen as a byproduct during wastewater treatment
Microalgae can remove pharmaceutical compounds and pesticides from industrial and agricultural generated wastewater.
From a cost perspective, microalgal removal of phosphorus from wastewater could be a superior choice over chemical precipitation and engineered wetland.