摘要
对MABR反应器施加磁场,研究磁场对同步短程硝化反硝化工艺的启动过程的影响。结果表明:磁场能够加速短程硝化过程的启动,并获得更高的亚硝酸盐积累率,出水氨氮和总氮平均浓度较对照组分别降低了56.5%和20.6%。同时,磁场能够增加生物膜的密度并提高氨氧化菌的氧利用速率。
MABR was exposed to magnetic field(MF)to investigate the effect of MF on the startup of simultaneous shortcut nitrification and denitrification.The results showed that,the shortcut nitrification process could be achieved more quickly in the MABR with MF,and the nitrite accumulation rate in the reactor was higher than the reactor without MF.With MF exposed,the average effluent concentration of NH4+-N and TN were declined by 56.5%and 20.6%.In addition,the MF could enhance the density of biofilm and the specific oxygen uptake rate(SOUR)of AOB.
作者
张磊
王鸯鸯
许丹宇
单连斌
季民
岳佳妮
ZHANG Lei;WANG Yangyang;XU Danyu;SHAN Lianbin;JI Min;YUE Jiani(School of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China;Shenyang Academy of Environmental Sciences,Shenyang 110167,China;Tianjin Academy of Environmental Sciences,Tianjin 300191,China;China Association of Environmental Protection Industry,Beijing 110037,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2020年第3期110-113,共4页
Technology of Water Treatment
基金
国家水体污染控制与治理科技重大专项(2018ZX07601-001)
辽宁省自然科学基金计划重点项目(20180540134)
沈阳市中青年科技创新人才支持计划项目(RC180317).
关键词
磁场
膜曝气生物反应器
短程硝化反硝化
magnetic field
membrane aerated bioreactor(MABR)
shortcut nitrification and denitrification
