摘要
由于反硝化的碳源不足,低C/N废水的氮去除较为困难。本研究采用微气泡曝气流化床反应器处理不同C/N的模拟生活废水,评估其运行性能,并进行优势分析。结果表明,在C/N分别为9、4和3的时候,微气泡曝气流化床COD平均去除率均在90%以上,TN平均去除率分别为66.42%、73.11%和77.91%,能够实现较完全的同步硝化反硝化,从而有效地去除废水中的污染物,具有“节能、节材、节地、高效、资源综合利用”的特点。
Removing nitrogen from wastewater with low C/N ratio is a difficult task due to the insufficient carbon source available for denitrification.This study used microbubble aeration biological fluidized bed reactor to treat simulated domestic wastewater with different C/N ratios,and evaluated the operation performance of the reactor,and analyzed the advantages.The results show that when C/N is 9,4 and 3 respectively,the average removal rate of COD in micro-bubble aerated fluidized bed is above 90%,the average removal rates of TN are 66.42%,73.11%and 77.91%respectively,which can realize relatively complete simultaneous nitrification and denitrification,thus effectively removing pollutants in wastewater,and has the characteristics of"energy saving,material saving,land saving,high efficiency and comprehensive utilization of resources".
作者
曹丽亚
Cao Liya(Qinhuangdao Environmental Monitoring Center,Qinhuangdao 066000,China)
出处
《环保科技》
2024年第4期22-26,共5页
Environmental Protection and Technology
关键词
微气泡曝气
流化床
运行性能
优势
microbubble aeration
fluidized bed
operating performance
advantage
