The basic principles of analytical techniques and main on-line analytical methods for the measurement of chemical oxygen demand ( COD ) are described. The construction and features of EW-2100 UV absorption water quality automatic on-line monitor are introduced. 介绍了化学需氧量分析技术的基本原理和几种主要的在线分析方法,重点介绍了EW-2100紫外吸收水质自动在线监测仪的工作原理、仪器结构、技术特点、技术参数及应用领域。
This paper explains the basic principle of bio-denitrification and the characteristics of A / O process. discusses the formulae used to design and calculate capacity of anoxic pond, capacity of oxic pond and oxygen demand of entirely mixed sludge A / O process. 论述了生物脱氮的基本原理及A/O脱氮工艺的特点,讨论了A/O完全混合污泥法工艺中好氧池容积、缺氧池容积及需氧量的设计计算公式。