摘要
挥发性脂肪酸(VFA)是消化污泥上清液(DSS)中主要的组分。DSS是反硝化很好的碳源。在本试验条件下,DSS碳源完全反硝化的临界值为1.74mg DSS-C/mg NO_3-N。但是,DSS中的TKN除了很小一部分被用于同化合成外,其大部分进入反硝化系统后不发生任何变化并随出水排放。
Volatile fatty acids (VFA) are main constituents of di- gested sludge supernatant (DSS) and DSS is a good carbon source for denitrification. Under test condition, the critical value of DSS for complete denitrification was 1.74mgDSS-C/mg NO3--N, but TKN in DSS could introduce into denitrification system except a small portion was consumed as assimilatory synthesis.
出处
《上海环境科学》
CAS
CSCD
1994年第4期11-15,共5页
Shanghai Environmental Sciences
关键词
生物反硝化
DSS
挥发性脂肪酸
Biological denitification Digested sludge supernatant Nitrate