污水处理的研究进展

摘要 随着我国城市化进程的加快和国民经济的迅速发展，我国水污染问题日益严重，污水处理厂的建设显得十分重要。其中，A2 /O,氧化沟法运用更为广泛，氧化沟（oxidation ditch）又名连续循环曝气池（Continuous loop reactor），是活性污泥法的一种变形。由于其出水水质好、运行稳定、管理方便等技术特点，已经在国内外广泛的应用于生活污水和工业污水的治理。

目前应用较为广泛的氧化沟类型包括：帕斯韦尔（Pasveer）氧化沟、卡鲁塞尔（Carrousel）氧化沟、奥尔伯（Orbal）氧化沟、T型氧化沟（三沟式氧化沟）、DE型氧化沟和一体化氧化沟。这些氧化沟由于在结构和运行上存在差异，因此各具特点。

关键词 水污染；氧化沟工艺；卡鲁塞尔（Carrousel）氧化沟；奥尔伯（Orbal）氧化沟；A2 /O法

Abstract With the accelerated process of urbanization and the rapid development of the national economy,The problem of water pollution in our country is more and more serious,The construction of sewage treatment plant is very importan.Among them, the oxidation ditch method is more widely used,Oxidation ditch, also known as continuous loop reactor,Is a kind of deformation of the activated sludge process.Because of its good water quality, stable operation, convenient management and other technical features,has been widely used at home and abroad for the treatment of domestic sewage and industrial sewage.

At present, the more widely used oxidation ditch types include：Paz Weir oxidation ditch, Carrousel oxidation ditch, Aoerbo oxidation ditch T type oxidation ditch (triple oxidation ditch), de type oxidation ditch and integrative oxidation ditch.Due to the differences in structure and operation, the oxidation ditch has different characteristics..

key word Water pollution; Oxidation ditch; Carrousel oxidation ditch; Aoerbo oxidation ditch; A2 /O ditch.

1、前言 .

随着社会经济发展和城市化进程的不断推进，人类对水资源的盲目开采和肆意浪费，使得水资源供需关系紧张的局面越来越严重。与此同时，大量未经处理的生活污水、工业废水流入水体，造成水体严重污染，水质型缺水问题突出[1]。水环境的恶化不仅加剧了水资源短缺，更严重威胁着人类的居住环境和身体健康，制约了社会的可持续发展。

2、氧化沟工艺的发展和演变