Factors Analysis for Simultaneous Biological Removal of Iron, Manganese and Ammonia from the Micro-Contaminants Groundwater

In this study a orthogonal text was performed, in order to investigate the main factor for simultaneous biological removal of iron, manganese and ammonium, and offer theoretical support for simultaneous biological removal of iron, manganese and ammonium from the micro-contaminants groundwater. Under the condition of static text, the concentration of iron, manganese, ammonia and dissolved oxygen content were put as affecting factors. The analysis of removal efficiency of iron, manganese and ammonia by SPSS analysis software shows the concentration of dissolved oxygen is the main factor affecting the simultaneous removal by the method of orthogonal text. Under the process of biological removal of iron, manganese and ammonium, appropriate dissolved oxygen content can achieve the best removal efficiency.