Phosphorus elimination during wastewater treatment is critical for human safety and environmental protection. Eutrophication, a natural process that causes algal blooms, can be avoided by eliminating this nitrogen from waste streams. Algae blooms have the potential to choke ecosystems, resulting in dead zones where animal life cannot thrive. Furthermore, this results in other water quality issues, putting our drinking water at risk.
The most common technique of chemical phosphorus extracting is to precipitate influent phosphorus with an iron or aluminium salt. In addition to lowering scum in secondary treatment and regulating sulphides and smells in anaerobically digested sludge, using an iron salt like ferric chloride has further advantages.
Rising quantities of phosphorus accumulate in biological solids as biological phosphorus is eliminated. The waste activated sludge eliminates the biosolids and related phosphorus from the liquid stream operations (WAS). An anaerobic-aerobic sequence is required to select for polyphosphate-accumulating organisms in order to achieve BPR (PAOs).
The influent wastewater is first passed via an anaerobic zone. The PAOs release phosphorus while collecting and storing carbs in the absence of oxygen.Following the anaerobic zone, the PAOs enter an aerobic zone, where they use stored carbs while absorbing excess phosphorus. To denitrify (i.e. eliminate nitrates from) the return activated sludge, an anoxic zone can be placed between the two zones (RAS).
How to remove Phosphorus using Lanthanum Chloride?
For the prevention of algae growth, lanthanum chloride (LaCl3) is used in aquariums, water parks, domestic waters, and aquatic environments. Lanthanum is a rare earth metal that effectively prevents phosphate build-up in water. A modest quantity of Lanthanum Chloride added to phosphate-laden water generates little flocs of LaPO4 precipitate, which can then be filtered via a sand filter. LaCl3 is very effective at lowering extremely high phosphate levels.
Advantages of removal of algae and phosphate
· Removes phosphate down to 10 parts per billion (0.01 mg/L)
· Reduces algae growth owing to low phosphate levels
· Does not stain the water system
· Allows for less chlorine to be used for algae management.
Netsol’s hand in removing phosphorus from ground water
Lanthanum chloride and cerium/lanthanum chloride are two rare earth chloride solutions that can be offered by Netsol Water for phosphate abatement (CLC). Since of their high affinity for phosphorus and larger effective pH range, both solutions are particularly successful at eliminating phosphates from water. Each product has a 1:1 molar ratio with phosphorus, reducing the quantity of solution required to attain the appropriate phosphate level and resulting in less sludge.
Customers in the zoo, aquarium, and swimming pool industries can buy lanthanum chloride. A customer can buy lanthanum chlorideto keep algae from growing in their pools. Cerium/lanthanum chloride (CLC) is a more recent invention than Lanthanum Chloride. It has been employed in the production of wheat, gluten, and starch. CLC is used to treat the water that leaves these manufacturing plants.