全氟丁烷磺酸短期作用对活性污泥系统脱氮效能的影响
Effect of Perfluorobutane Sulfonic Acid on Nitrogen Removal Efficiency of Activated Sludge System
孙雪宁 1刘玉灿 2吴代顺 3王港 1杨晓永 1孙洪伟1
作者信息
- 1. 烟台大学环境与材料工程学院,山东烟台 264005
- 2. 烟台大学土木工程学院,山东烟台 264005
- 3. 福建技术师范学院海洋学院,福建福州 350300
- 折叠
摘要
为探究新兴污染物PFBS是否会对活性污泥硝化脱氮系统的性能产生影响,通过构建短期序批式反应器(SBR),研究不同质量浓度条件下PFBS对该系统的影响.结果表明,一定量PFBS的存在会降低系统的氨氮去除率.PFBS质量浓度低于250 mg/L时,对生物脱氮效能的影响并不显著.当PFBS质量浓度达到250 mg/L时,对生物脱氮效能的影响程度急剧升高.PFBS的存在会降低氨氧化菌的生物活性,阻碍氨氮的转化,最终对活性污泥系统的脱氮效能产生一定的负面影响.
Abstract
In order to investigate whether the emerging pollutant PFBS affects the performance of the activated sludge nitrification and denitrification system,a short-term batch reactor(SBR)is constructed to investigate the effect of PFBS on this system under different mass concentration conditions.Results indicate that the presence of a certain amount of PFBS can reduce the removal rate of ammonia nitrogen.When the mass concentration of PFBS is less than 250 mg/L,no significant effect is shown on the biological nitrogen removal efficiency,whereas when the mass concentration of PFBS reaches 250 mg/L,the influence degree on the biological nitrogen removal efficiency increases sharply.Presence of PFBS reduces the biological activity of ammonia oxidising bacteria,hindering the conversion of ammonia nitrogen,and ultimately shows a certain negative effect on the the nitrogen removal efficien-cy of the activated sludge system.
关键词
全氟丁烷磺酸/生物脱氮/硝化/短期作用Key words
perfluorobutane sulfonic acid/biological denitrification/nitrification/short-term action引用本文复制引用
基金项目
山东省自然科学基金资助项目(ZR2020ME226)
福建省自然科学基金资助项目(2022J01984)
出版年
2024
国家科技期刊平台
NSTL
万方数据