Eutrophication Lab Report

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INVESTIGATION OF THE WORKING PERFORMANCE OF THE NOVEL PHOSPHOROUS REMOVAL WITH PARTITIONABLE SPACE ENHANCED COAGULATION REACTOR Abstract: Phosphorus pollution is one of the main factors causing water eutrophication. In this study, the phosphorous removal efficiency of commonly used coagulation/flocculation aid, ferrous sulphate has been studied. A series of jar test was conducted to evaluate the pH, dosage and conditions (mixing and flocculation stirring speeds, durations, and settling times) required to achieve optimum waste capture. The dosage of coagulant and pH of solution play important roles in chemical phosphorus removal. The removal efficiency increases with increasing dosage and the optimum Fe/P ratio is 2.5 at which a removal above 90% has been obtained. For ferrous sulphate, the optimum pH is reported as 9. Mixing and flocculation speeds played only a…show more content…
Although the flash mixing with impeller is a common operation for traditional coagulation technology, it exerts a negative effect on the phosphorus removal due to a sharp decrease of precipitant concentration. So a unique internal structure was designed in the novel PEC Reactor to avoid the mixing over the whole reactor. The present work aims to study the phosphorous removal efficiency of commonly used coagulation/flocculation aid, ferrous sulphate and the effect of parameters such as pH, dosage and conditions (mixing and flocculation stirring speeds, durations, and settling times) required to achieve optimum waste capture. Along with this, the present work also aims to investigate the phosphorous removal efficiency of the Partitionable Space Enhanced Coagulation (PEC) Technology and the effect of operational parameters on its

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