A／O生物法脱除焦化废水中氨氮的工艺及影响因素  

Process and Affecting Factors of Removing NH_3-N from Coking Wastewater by A/O Method

作　　者：刘柒变 孙亚玲 张永发[1] 田波 

机构地区：[1]山西省职工医学院,太原工业大学,太原煤气化总公司焦化厂

出　　处：《煤化工》1994年第3期52-57,共6页Coal Chemical Industry

摘　　要：本文介绍了反硝化／硝化生物法脱氮的基本原理，讨论了生物法处理焦化废水的开发工艺和影响因素。通过分析认为：缺氧／好氧（Ａ／Ｏ）法较好地解决了碳源矛盾和碱度平衡两个生物脱氮的主要问题。在Ａ／Ｏ法工艺中控制较高的ｐＨ值，较长的污泥龄及Ｃ／Ｎ＞２．８６等参数，有利于提高脱氮效率。The Principle of removing NH_3-N from wastewater by the efficient method of denitrification /nitrifcation(or A/O)is explained. Then, both the development process and the affecting factors of coking wastewater treatment by A/O method are discussed.It is concluded that the two main problems of the carbon source and alkaline equilibrium can be solved by A/O method,and that the conditions of pH>7,longer sludge age and C/N>2.86 are favourable for raising efficency of removing NH_3-N.

关 键 词：焦化 废水处理 硝化 脱氮 生物法 

分 类 号：X789.03[环境科学与工程—环境工程]