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低碳源浓度条件下聚磷菌特性林海
3 6 Vol. 3 No. 6
2009 6 Journal of University of Science and Technology Beijing Jun. 2009
林 海 李 萍 陈月芳 王 倩 侯瑞荣 张 艳
, 100083
,
. ( acinetobacter sp. ) . AE
; , COD 100mgL - 1:
A E pH 8 7 , 20 25 ; .
.
( PAO ) ; ; ;
X 7031
Characteristics of phosphorus accumulating organisms at low carbon level
LIN H ai, LI Ping, CHEN Yue-f ang, WANG Qian, HOU Rui-rong, ZHANG Yan
S choo of Civi and Environmenta Engineering , U niversit y of Science and T echno ogy Beijing, Beijing 100083, China
ABSTRACT T w o eff icient po yphosphate accumu ating organism s, A and E , w ere screened from the returned s udge w hich comes
from the f ina sedimentation tank in Beijing Gaobeidian Sew age T reatment P ant . At the same time, the reversing di ution p ate sepa-
ration t echno og y w as identif ied to be benef icia to screening the po yphosphate accumu ating organism s. Observations of their morpho-
og ica , physio ogica and biochemica f eatures indicate that they are acinetobacter sp . By exper iment , the optima choices for car bon
of the po yphosphate accumu ating organism s A and E are CH COON a and C H NN aO , respective y. Exper imenta data show the
3 5 8 4
best g rowth condit ions of po yphosphate accumu ating org anisms in reducing carbon concentrations, i . e. ess than COD 100 mg L - 1:
t he optima pH v a ues and temperatures of the po yphosphate accumu ating org anism s A and E are 8 and 7 , 20 and 25 , respec-
tiv e y. M eta ions M g2+ , K + and M n2+ can be he pfu to accumu ate po yphosphate. T he eff ect o f ox ygen on the phosphate accumu-
ating microorganism s w as discu
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