改良型Carrousel 2000氧化沟的机理和工程应用

Mechanism and Engineering Application of Mendable Carrousel 2000 Oxidation Ditch

氧化沟工艺是20世纪50年代初期发展起来的一种污水处理工艺形式,因其构造简单,易于维护管理,很快得到广泛应用.到目前为止已发展成为多种形式,主要有:Passveer单沟型、Orbal同心圆型、Carrousel循环折流型、D型双沟式、T型三沟式及一体氧化沟等.传统的Passveer单沟型和Carrousel型氧化沟脱氮除磷功能差,但是在Carrousel氧化沟前增设厌氧池,在沟体内增设缺氧区,形成改良型Carrousel 2000氧化沟,便具备生物脱氮除磷功能.

Oxide ditch, which developed in 1950s for waste water treatment, got wide application due to its simple structure and easy maintenance and management. The main forms of oxide ditch are as follows： Passveer single ditch, Orbal circularity ditch, Carrousel circulation ditch, D double ditch, T triple ditch and combined ditch. The traditional Passveer single ditch and Carrousel ditch are not good at removable N and P, but in the front of anaerobic pond is intercalated, and anoxic area is intercalated in, Carrousel Oxide Ditch becomes amendable Carrousel 2000 Oxidation Ditch, so it possesses removal nitrogen and phosphorus by biology function.