可灵活切换运行模式的微曝氧化沟脱氮除磷分析  

Nitrogen and Phosphorus Removal Effect Analysis of Switchable Micro-aeration Oxidation Ditch

作　　者：李兴 钟毓 苏文越 吴志昇 王宇 LI Xing;ZHONG Yu;SU Wen-yue;WU Zhi-sheng;WANG Yu(Guangdong Environmental Protection Engineering Research and Design Institute Co.Ltd.,Guangzhou 510062,China)

机构地区：[1]广东省环境保护工程研究设计院有限公司,广东广州510062

出　　处：《中国给水排水》2023年第6期88-92,共5页China Water & Wastewater

摘　　要：以广东省普宁市某污水处理厂四期工程为例,详细介绍了可切换式微曝氧化沟的工艺设计、运行模式及实际处理效果。该工艺灵活性强,脱氮除磷效果好,出水水质稳定。从常规模式切换至强化脱氮模式,脱氮效果明显增强,TN削减量平均增加3.44 mg/L,TN去除率平均增加6.1个百分点,预计可节省运行成本0.035~0.084元/m^(3);强化除磷模式的效果尚未体现,但在应对未来进水水质变化时将保持一定的灵活性。Taking the phase Ⅳ project of a WWTP in Puning of Guangdong Province as an example,the process design,operating mode and actual effect of switchable micro-aeration oxidation ditch is elaborated.The process has strong flexibility,good nitrogen and phosphorus removal(NPR)effects,and stable effluent quality.Switching from the regular mode to the enhanced nitrogen removal mode,TN removal effects are significantly improved,with the average increase of TN removal amount by 3.44 mg/L and that of TN removal rate by 6.1 percentage point,expecting to save operation cost by 0.035-0.084 yuan/m^(3) of treated sewage.Effects of the enhanced phosphorus removal mode has not been demonstrated yet,however,it will remain flexibility in dealing with future fluctuations of influent quality.

关 键 词：微曝氧化沟 模式切换 脱氮除磷 

分 类 号：TU992[建筑科学—市政工程]