CAJ | 학술논문

随着水体富营养化问题的日趋严重，总氮指标开始列入环保标准控制指标。传统的A/O工艺对总氮的去除效果较低，分段进水多级A/O工艺的提出为水体中总氮脱除提供了新的思路。本文简述了分段进水多级A/O工艺原理，重点分析了进水流量分配比、溶解氧、污泥回流比、水力停留时间、缺氧区与好氧区容积比、 C/N比对多级A/O工艺运行的影响，探讨了该技术存在的主要问题，对今后发展方向进行了展望，为去除废水中总氮提供技术支持。
수착수체부영양화문제적일추엄중，총담지표개시렬입배보표준공제지표。전통적A/O공예대총담적거제효과교저，분단진수다급A/O공예적제출위수체중총담탈제제공료신적사로。본문간술료분단진수다급A/O공예원리，중점분석료진수류량분배비、용해양、오니회류비、수력정류시간、결양구여호양구용적비、 C/N비대다급A/O공예운행적영향，탐토료해기술존재적주요문제，대금후발전방향진행료전망，위거제폐수중총담제공기술지지。
With the increasingly serious eutrophication problem, Total nitrogen index was included in the environmental protection standard control indicators. The traditional A/O process for total nitrogen removal efficiency was low. The new train of thought was provided in Multistage A/O process based on step-feed . The mechanism of Multistage A/O process based on step-feed were briefly described, meanwhile, some important factors regarding the operation and design of the process, such as primary effluent flow splitting, dissolved oxygen, returned activated-sludge rates, hydraulic retention time, anaerobic zone to aerobic zone volumetric ratio and the ratio of C/N, were discussed. The future developing directions of this technology were forecasted, the technical support was provided in the removal of total nitrogen in waste water.