The paper introduces operation and existing problems before reformation of biochemical water treatment system of two 55 hole coke ovens with A2O method at New Iron-making Plant.
介绍A-A-O法在炼铁新厂两座55孔焦炉生化水处理系统改造前的运行状况和系统存在的问题，以及采用深度处理改造后的实施效果。
The paper introduces operation and existing problems before reformation of biochemical water treatment system of two 55 hole coke ovens with A2O method at New Iron-making Plant.
介绍A-A-O法在炼铁新厂两座55孔焦炉生化水处理系统改造前的运行状况和系统存在的问题，以及采用深度处理改造后的实施效果。
应用推荐