Removing Iron and Manganese Simultaneously from Ground Water Using One-stage Biological Filter

A novel process for removing iron and manganese simultaneously in ground water,which consisted of simple aeration and one-stage filtration,was developed in this research. It was found that the biological process had much higher manganese removal efficiency than chemical contact oxidation process. At the same time,the optimal operation parameters of aeration and biological filtration such as DO concentration and pH after aeration,filtration rate before and after startup,filtration operation cycle and backwas...