摘要
采用交替好氧 /缺氧运行方式和适时过程控制策略开发了一种生物脱氮新工艺 ,该工艺结合了短程硝化反硝化脱氮技术。试验过程中选择了 3种不同运行模式去实现短程硝化反硝化脱氮技术 ,即传统的序批式活性污泥法 (SBR)运行模式、固定时间控制交替好氧 /缺氧运行模式和适时过程控制交替好氧 /缺氧运行模式。结果显示 ,适时过程控制交替好氧 /缺氧运行模式效果最佳 ,它不但能提高硝化、反硝化速率和减少总反应时间 ,而且可以节省硝化过程中碱度的投加和反硝化过程碳源的投加量 ,降低了运行成本。
An innovative technology for nutrient removal from soybean wastewater was developed by using alternating oxic/anoxic operation and the real-time process control, and it was combined with shortcut nitrification-denitrification. The shortcut nitrification-denitrification was performed in three kinds of operation modes: shortcut nitrification-denitrification by traditional sequencing batch reactor (SBR) operation, shortcut nitrification-denitrification by alternating oxic/anoxic operation under the fixed-time control and shortcut nitrification-denitrification by alternating oxic/anoxic operation under the on-line fuzzy control. Results show that the shortcut nitrification-denitrification by alternating oxic/anoxic operation under the on-line process control is the best. It can not only improve both nitrification and denitrification rates and decrease the total reaction time, save the carbon source and alkalinity, but also shorten the reaction time and save the operation cost.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2003年第6期28-31,共4页
Modern Chemical Industry
基金
国家自然科学基金资助项目 (50 1 380 1 0 )
黑龙江省自然科学基金资助项目 (E0 2 30 )
