三种反硝化工艺比较

Comparison of Denitrification Processes

颗粒滤床、悬浮活性污泥法和弹性填料生物膜法三种反硝化工艺有机物容积去除负荷均在 2kgCOD/ (m3·d)以上。通过过程稳定性、反硝化程度及反应动力学速率常数比较分析 ,颗粒滤床与悬浮活性污泥法优于弹性填料生物膜法 ,颗粒滤床反硝化更适合给水处理 。

Organic substances shall be removed effectively in denitrification processes using granule filter bed, bio membrane process with elastic material package or suspended activated sludge process, and all of their the volume removal load is more than 2 0 kgCOD/(m 3·d). In comparing of these three processes in aspects of process stability, degree of denitrification and reaction kinetics rate constants, it is found that granule filter bed and activated sludge process are better than elastic packaged bio membrane. And also it is suggested that granule filter bed might be more suitable for water supply and activated sludge process for wastewater treatment respectively.