Manganese removal

Two parallel pilot-scale biological filters which used manganese sand and silica sand as media respectively were tested for the removal of iron and manganese from drilled well water in Harbin. Iron and manganese oxidizing bacteria were isolated and used as inoculums for filter start-up. Manganese sa

Pilot scale trickling filters were constructed and tested in order to study biological removal of ammonia, iron and manganese from potable water. The effect of the size of the support material on nitrification performance was studied extensively. The mean size of the gravel and hence, the specific s