Although traditional sewage treatment used at present is able to reach a level of pollution control, there still exists disadvantages such as the mass area used and the difficulty of management. Nevertheless, biological aerated filter as a new form of sewage disposal techonique is showing a significant advance and gaining a promising expectation. This article will analyse the application technology of biological aerated filter used in water treatment. Furthermore, it will investigate the problems and foreground of biological aerated filter.
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