摘要
使用复合式A2/O工艺进行了富集的原生动物对污泥沉降特性及污泥产率影响的研究。结果表明:复合式A2/O工艺悬浮态污泥的SVI低于对照试验30%,污泥产率在0.140～0.413kg污泥/kgCOD之间,是对照试验的1/2～4/5。填料的存在使原生动物在系统中富集,从而抑制丝状菌的增殖,显著改善污泥的沉降性能。
The pilot tests ofanaerobic/anoxic/hybr/d aerobic system （hybrid A^2/O process） were conducted to study the effect of enriched protozoan on sludge settlement characteristics and sludge reduction. The results indicated that the suspended sludge SVI in hybrid A2/O process was below the control test by 30%. The sludge yield（Yobs） was 0.140-0.413 kg/kg （kgSS/kgCOD）in hybrid A2/O set, which was 1/2-4/5 ofcontroltest. The existence ofcarriers could make protozoan enriched in reactor, which restrained proliferation offilamentous bacteria, and enhanced sludge settlement characteristics.
出处
《水处理技术》
CAS
CSCD
北大核心
2006年第8期30-33,共4页
Technology of Water Treatment
关键词
活性污泥
生物膜
复合式工艺
A^2/O工艺
污泥膨胀
污泥减量
aetivated sludge
biofilm
hybrid process
anaerobic/anoxic/aerobic system
sludge bulking
sludge reduction
