Separation and Oxidizability Property of Iron Removing and Manganese Removing Bacteria

The purpose of the study is to know the course of the biological removal of iron and manganese.Four strains of bacteria,which show similar periodicity in their oxidation on iron,are obtained on the surface of mature manganese sand.Their structures were examined and the effects of time on the removal of iron and manganese were also checked so as to select the most effective iron and manganese removing bacteria.The oxidation of mixed bacteria is stronger than that of unitary bacteria.The change of bacteria quantity as well as the interaction between iron and manganese affects pH of the solution.The change of the pH helps us to know the effect of the germs on iron and manganese as well as the increase and decrease of the quantity of the bacteria.The bacteria's oxidation of iron and manganese is not only subject to bacteria quantity,but to pH of the solution and the strain of the bacteria as well.