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Phosphates !!!! PO 4 - 3 A ) a salt or ester of phosphoric acid B) a tertiary salt of orthophosphoric acid, as godium phosphate. By: Justin Pollock, Kelly Cucolo and Joelle Shantz. Acceptable Ranges of Phosphate in Nature.
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Phosphates!!!!PO4-3A) a salt or ester of phosphoric acidB) a tertiary salt of orthophosphoric acid, as godium phosphate By: Justin Pollock, Kelly Cucolo and Joelle Shantz
Acceptable Ranges of Phosphate in Nature • Should not exceed .05 ppm if stream discharges into lakes or reservoirs • Should not exceed .025 ppm within a lake of reservoir • Should not exceed .1 ppm if stream does not discharge into lakes or reservoirs • This helps control algae growth because if phosphate level is too high, algae is overgrown • This leads to low availability of dissolved oxygen and is detrimental to fish population
Problems: Sources of Phosphates: • Natural: • Agricultural areas • Phosphate mines • Rocks (Released during weathering and erosion) • Bottom sediments of lakes • Excess: • Excessive growth of plants (Algae) • Can lead to oxygen depletion Man made: • Sewage (and treatment plants) • Soap • Antifreezes • Fertilizers • Latex paints • Toothpastes • Detergents • Low: • Healthy water • If the levels are too low the plants may not survive
Ways to Alleviate the Imbalance of Phosphate in Water Systems • Use detergents with less phosphate in it • Be sure to stop fertilizers from going into water sources
Why Phosphates were used in Detergents • Removed calcium that bound foods together • Prevented spotting and filming that sometimes occurs during wash cycles • Removed grease • Controlled water hardness
Sources http://www.mellen.k12.wi.us/science/water_studies/phosphates.htm http://webpages.charter.net/kwingerden/erhs/aquarium/phosphat.htm#HealthEffects http://dictionary.reference.com/ http://cascadeclean.com/en_US/phosphatefreefaq.do http://www.water-research.net/Watershed/phosphates.htm