摘要
通过连续流反应短程硝化过程中溶解氧和游离氨对亚硝酸盐积累的影响研究,采用两组平行反应器进行对比。结果表明连续流工艺在城市生活污水的处理中,常温(25℃)低氧(1.5~2.5 mg/L)条件下能够快速启动短程硝化,FA质量浓度在20~40 mg/L对硝酸菌形成抑制,对亚硝酸菌的生长没有抑制,DO质量浓度调控在0.5~1.0 mg/L左右适宜范围内,可以实现亚硝酸盐积累并能获得较高的氨氮去除率。为连续流短程硝化同步反硝化的运行和调控提供了理论基础。
Two groups of parallel reactors were used to study the effect of dissolved oxygen and free ammonia on nitrite accumulation during shortcut nitrification of the continuous flow reaction process.The results showed that the continuous flow process could quickly start short-range nitrification under normal temperature(25℃)and low dissolved oxygen(1.5~2.5 mg/L)conditions in the treatment of municipal domestic sewage.FA inhibited the formation of nitric acid bacteria at 20 and 40 mg/L and did not inhibit the growth of nitrite bacteria.DO was controlled at the suitable range of 0.5~1.0 mg/L to achieve nitrite accumulation and high ammonia nitrogen removal.It provides a theoretical basis for the operation and regulation of continuous flow short-range nitrification and denitrification.
作者
吴春英
葛及
白鹭
谷风
WU Chunying;GE Ji;BAI Lu;GU Feng(School of Resources and Environmental Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2022年第12期99-102,共4页
Technology of Water Treatment
基金
吉林省科技厅项目(202002009JC),吉林省教育厅项目(JJKH20200255KJ),吉林化工学院重大项目(2018028)。
关键词
短程硝化
游离氨
溶解氧
亚硝酸盐
shortcut nitrification
free ammonia
dissolves oxygen
nitrite
