Oxidation Property of Mixed Bacteria and Their Removal Effect on Iron and Manganese

In order to test the factors change in the oxidation process of the mixed bacteria removing iron and manganese and to know the course and characteristics of the microorganism removal of iron and manganese,we use Ferrobacillus,Grenathrix polyspora,Leotothrix volubilis and PYCM medium to culture the bacteria,and mix them.We did comparative test in different condition and detect the factors change.There is the linear correlation between the change of pH and the removal rate curve of the manganese.The manganese removal rate of each bacteria can reach over 50%,the average removal of iron is over 80%.Carrier does limited effect on the biological removal of iron.The removal effect of iron and manganese,which depends on the Grenathrix polyspora,Leotothrix volubilis and PYCM culture medium,is better under the condition of having sands and waving the bottle and only waving the bottle.When only sands exist,the biological removal of iron and manganese is better which depends on the Ferrobacillus,Grenathrix polyspora,Leotothrix volubilis and PYCM culture medium.The oxidation of the iron and manganese by bacteria has effect on pH.