Estimation of the number of denitrifying bacteria and maximum rate of denitrification in anoxic reactor

被引:0
|
作者
Gianotti, EP [1 ]
Jerônimo, VL [1 ]
Campos, JR [1 ]
机构
[1] Univ Sao Paulo, Escola Engn Sao Carlos, Dept Hidraul Saneamento, BR-13560970 Sao Carlos, SP, Brazil
来源
REVISTA DE MICROBIOLOGIA | 1997年 / 28卷
关键词
denitrification; denitrifying bacteria; denitrification rate;
D O I
暂无
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Denitrifying bacteria were enumerated (MPN) in bench scale reactor fed with synthetic sewage and nitrate, operated under controled condictions. In control conditions (without nitrate), the number of denitrifying bacteria was about 8.00x10(7)/ gVSS. At the concentrations of 10 and 50mgN-NO3-/L, the average was 6.00x10(7) and 1.62x10(9)/GvSS, respectively. The maximum denitrifying rates, estimated by quantification of N2O using the acetylene method (inhibition of reduction of N2O to N-2), were 0.063gN/gVSS.day (10mgN-NO3-/L) and 0.044gN/gVSS.day (50mg N-NO3(3)(-)/L).
引用
收藏
页码:91 / 94
页数:4
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