耐盐菌强化SBR处理模拟高盐废水
Treatment of Simulated High Salt Wastewater by Salt-tolerant Bacteria Enhanced SBR
白玉玮 1王静 1薛飞1
作者信息
- 1. 石家庄高新技术产业开发区供水排水公司,河北 石家庄 050035
- 折叠
摘要
投加耐盐菌的SBR反应器在 3%盐度下COD的降解率在 93%左右,随着盐度提高,该反应器对盐度的抵抗力更强,使系统对COD仍具有较好的降解效果,投加耐盐菌的SBR反应器对COD的降解效果明显高于对照组.盐度在3%以内时,SBR反应器在运行稳定阶段NH4+-N平均去除率稳定在 90%;进水盐度低于 3%时,SBR仍然具有较高的NH4+-N去除率;盐度在 3%以上同步硝化反硝化受到明显抑制;过高盐度导致污泥微生物死亡.
Abstract
The SBR reactor added with salt-tolerant bacteria has a COD degradation rate of about 93%at 3%salinity.With the increase of salinity,the SBR2 reactor has stronger resistance to salinity,which makes the system still have a good degradation effect on COD.The SBR reactor added with salt-tolerant bacteria has a significantly higher degradation effect on COD than the control group.When the salinity is less than 3%,the average NH4+-N removal rate of the SBR reactor is stable at 90%in the stable operation stage.When the influent salinity is lower than 3%,the SBR still has a high NH4+-N removal rate,and the synchronous nitrification and denitrification are significantly inhibited when the salinity is above 3%.Excessive salinity caused the death of sludge microorganisms.
关键词
耐盐菌/生物强化/好氧生物处理Key words
salt-tolerant bacteria/bioenhancement/microbial community structure引用本文复制引用
基金项目
石家庄市科学技术研究与发展计划项目(211240123A)
出版年
2024
NETL
NSTL
万方数据