Decomposition of Wastewater Pollutants through Natural Oxidation and Air Induced Oxidation Process

The various treatment processes are being used for the wastewater treatment, including the air induced method for the decomposition of wastewater pollutants mainly the organic compounds and heavy metals. In this content, lab scale experiments were conducted for the comparisons of the results by using a natural oxidation process and the air induced method for the organic matter decomposition. The air was introduced into the wastewater for 3 hours in an open container, and the other container containing wastewater was left open for 1-3 days for the natural oxidation process. It is estimated that after treatment of induced air oxidation the concentration of heavy metals was decreased while the concentration of nitrate and phosphate was increased. The results of the wastewater samples revealed that the concentration of Iron (Fe), Zinc (Zn) and Manganese (Mn) were decreased, as for Iron (Fe) was found about 42-54%, zinc (Zn) was found about 33-50%, and the Manganese (Mn) was 63-75% in samples of air induced oxidation process after the of 24, 48 and 72 hours respectively. Keywords: Wastewater treatment; Natural oxidation; Air induced oxidation; Earth's surface