摘要：

曝气生物滤池 (BAF)是近年国外发展起来的一项废水好氧生物处理的新工艺。介绍了上向流和下向流曝气生物滤池的基本工作原理。与传统活性污泥法相比曝气生物滤池具有处理能力强、处理效果好、受气温影响小、耐冲击负荷、不需二沉、工艺流程简单和菌群结构合理等优点。分析了目前国内外典型曝气生物滤池处理工艺的特点及应用。并讨论了曝气生物滤池工艺运用中的预处理及除P脱N等关键技术。该工艺在我国具有广阔的应用前景。

关键词: 曝气生物滤池, 除磷脱氮, 预处理, 回流

Abstract:

Biological Aerated Filter (BAF) is arecently developed process to treat organic waste water. The working principle of BAF (up flow and down flow) is presented. Compared with traditional activated sludge system, the main advantages of BAF has stronger treating capacity, better treating effect, less relationship with temperature, higher capacity for absorbing shock load, no requirement for secondary settlement tank, simpler technology flow and more reasonable bacterium structure. The characteristic and application of typical BAF process, at home and abroad, are analysed. What's more, the key technique of BAF about the removal of P and N and its pre-treatment are discussed. BAF process has prosperous future in our country.

Key words: biological aerated filter, removel of P and N, pre-treatment, back flow

中图分类号: 

• TU992

• X703.1