浅层气浮处理微污染水体机理研究

Mechanism on Shallow Dissolving Air Flotation for Treatment of Micro-polluted Water in Closed Scenic Reclaimed-water

采用中水作为小区封闭景观水体的原水和补充水,针对景观水体受污染的特点,构建一种结合生物与气浮技术优点的处理方法,重点分析影响其处理效果的各种因素,建立包含一个主流程和两个内部循环的BOAF高效浅层气浮净化处理装置系统。实验结果表明,BOAF浅层气浮技术用于处理微污染水体是可行的,为中水景观水体的应用和推广提供了坚实的技术保障。

In view of the characteristics of pollutants for the scenic water, BOAF system was set up to purify the closed scenic water with source of reclaimed water in residential quarters. BOAF system includes a main process combining dissolving air flotation method with simple biochemical and two inside circulations of floating scum and dissolved water in the shallow dissolving air flotation device. Through the study of mechanism of shallow dissolving air flotation, the parameters which will affect efficiency of the device were analyzed. Results of the present study prove that BOAF system is a feasible method for removing pollutants in closed scenic water in residential quarters, and provides firmly technical support for the application and promotion of closed scenic water with source of reclaimed water.