研究论文
高大文,彭永臻,王淑莹.交替好氧/缺氧短程硝化反硝化生物脱氮Ⅱ.过程控制模式的确定[J].环境科学学报,2004,24(5):769-775
交替好氧/缺氧短程硝化反硝化生物脱氮Ⅱ.过程控制模式的确定
- Alternating oxic-aNOxic Shortcut Nitrification-Denitrification Ⅱ. Study on control mode
- 基金项目：国家自然科学基金重点资助项目(50138010);黑龙江省自然科学基金资助项目(E0230)
- 作者
- 单位
- 高大文
- 哈尔滨工业大学市政环境工程学院, 哈尔滨 150090
- 彭永臻
- 1. 哈尔滨工业大学市政环境工程学院, 哈尔滨 150090; 2. 北京工业大学环境与能源工程学院, 北京 100022
- 王淑莹
- 北京工业大学环境与能源工程学院, 北京 100022
- 摘要：对交替好氧缺氧短程硝化反硝化生物脱氮工艺中曝气和搅拌时间的控制模式进一步研究.结果表明, ORP(氧化还原电位)和pH的一阶和二阶导数变化可以作为控制交替好氧和缺氧运行方式的过程控制参数.在此基础上, 建立了控制交替好氧和缺氧时间的过程控制模式.按照所建立的过程控制模式对进水COD、氨氮和总氮浓度分别为194.55～924.90mg·L-1, 25.68～81.48mg·L-1和36.46～90.55mg·L-1.的废水实施交替好氧缺氧控制, 经过2个月的运行, COD、氨氮和总氮的下降率和去除率仍然保持在90%, 99%和92%.
- Abstract：On the basis of previous paper, this paper further studies the control mode for aeration and mixing time in biological nitrogen removal process via shortcut nitrification-denitrification under alternating oxic/aNOxic conditions. The results showed that the variation of the first and the second derivative in ORP and pH curve could control alternating oxic/aNOxic shortcut nitrification-denitrification. Therefore, the real-time control mode of alternating oxic/aNOxic shortcut nitrification-denitrification is developed. The control mode could make efficient alternating oxic/aNOxic shortcut nitrification-denitrification when influent COD, NH4+-N and TN were at 194.55～924.90μmg.L-1, 25.68～81.48μmg·L-1 and 36.46～90.55μmg·L-1. During the experimental period of two months, the removal rate of COD, NH4+-N and TN were more than 90%, 99% and 92% respectively. Conclusion, the real-time control mode of alternating oxic/aNOxic shortcut nitrification-denitrification is feasible. It not only control oxic and aNOxic time accurately, and improves reaction rates, but also builds foundation for fuzzy control.
摘要点击次数： 1502 全文下载次数： 2581
