摘要
简要介绍了氧化沟工艺的发展历程,总结了氧化沟工艺向着增加厌氧区和缺氧区,将曝气和推流功能分离以及优化溶解氧浓度等运行参数实现同步硝化反硝化(SND)和同步硝化反硝化除磷(SNDPR)等方向发展的趋势。同时指出需加强循环比对氧化沟内混合液流态、溶解氧扩散传质和脱氮除磷微生物种群分布等方面响应关系的研究,以便进一步提高氧化沟工艺的脱氮除磷效率,为其设计、改造、运行提供科学依据和理论指导。
The development course of oxidation ditch is introduced briefly. Moreover,the development trends of increasing anaerobic and anoxic zones,separating aeration from plug-flow function, optimizing the operation parameters, such as dissolved oxygen concentration etc. and achieving simultaneous nitrification and denitrification （SND）, and simultaneous nitrification and denitrification phosphorus removal （SNDPR）, are summarized. Meanw- hile, the necessity for the researches on the response relationship of reinforcing the recycle ratio and the aspects, such as the fluid state of mixed solution, dissolved oxygen diffusion and mass transfer, and biological population dis- tribution of denitrification and dephosphorization etc., is pointed out. The researches can further improve the denitri- fication and dephosphorization efficiencies of oxygen ditch process and provide scientific base and theoretical guide for its design, modification and operation.
出处
《工业水处理》
CAS
CSCD
北大核心
2013年第6期1-5,共5页
Industrial Water Treatment
基金
国家自然科学基金资助项目(51108299)
天津市自然科学基金资助项目(10JCYBJC05300)
关键词
氧化沟
脱氮
除磷
循环比
oxidation ditch
denitrification
dephosphorization
recycle ratio
