NUTRIENTS REMOVAL THROUGH CHLOROPHYTE ALGAE GENERATED IN WASTEWATER FROM THE A PERCOLATOR FILTER EFFLUENT

Abstract

Nutrient removal in the wastewater, has been of interest due to the effects caused when it is present in high concentrations, so this article focuses on assessing nutrient removal. It analyzed the parameters of nitrate (NO₃-N), ammonia nitrogen (NH₃-N) and phosphate (PO4^3-) of wastewater, from efluent of the trickling filter module of the plant wastewater treatment University of San Carlos, these parameters were evaluated on the day of the sampling and the day increased presence of algae naturally generated. The research was conducted with 10 samples that allow a confidence level of 95% in the results, maximum growth of algae was identified, This result as a parameter of measuri the true color, during 14 days of observation, it was determined that the seventh day, from sampling, the highest value of true color units (UD) is presented increase of 5 UD to 40 UD. The average value of ammoniacal nitrogen (NH₃-N) decreases from 1.15 mg /l to 0.42 mg/l equivalent to a reduction of 63.3%, nitrate (NO₃-N) of 344.3 mg/l to 415.8 mg/l equivalent to a 20.8% increase and phosphate (PO4^3-) of 18.27 mg/l to 13.72 mg/l equivalent to a reduction of 24.9%. With the objective to determine what happens to the nitrogen cycle, nitrite (NO^2--N) is evaluated, resulting in an increase of 5.9 times the initial average value of 0.2 mg/l to 1.4 mg/l, confirming that the removal process is performed nitrogen cycle.