[Relationship between several biologic indices and degradation efficiency of bioaugmentation system].
Because of the existence of some unstable factors, the effluent water from a bioaugmentation refinery wastewater treatment system usually exceeds the provided standard. To solve this problem, the relationship between the bacteria number, dehydrogenase, catechol 1,2-dioxygenase(C12O), catechol 2,3-dioxygenase(C23O) and the degradation efficiency of the bioaugmentation and control system is investigated and discussed. Using ERIC-PCR technology, we studied the changes of the microbial populations before and after treatment. The results show addition of microorganisms agent can increase the bacteria number, enzyme efficiency and the efficiency of the reactor. There exists a positive relationship between the bacteria number, C23O and the degradation efficiency in the bioaugmentation reactor. The microbial populations in both the reactors are stable before and after run. C12O is a kind of induction enzyme and its efficiency declines while the degradation efficiency increases.
Hao
Chun
C
Graduate School of Chinese Academy of Sciences, Beijing 100039, China. hao16@hotmail.com
Li
Xu-dong
XD
D001421:Bacteria, Anaerobic / Q000201:enzymology / Q000235:genetics / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology*; D050548:Catechol 1,2-Dioxygenase / Q000032:analysis / Q000378:metabolism*; D004269:DNA, Bacterial / Q000032:analysis / Q000235:genetics; D049308:Dioxygenases / Q000032:analysis / Q000378:metabolism; D010578:Petroleum / Q000378:metabolism*; D016133:Polymerase Chain Reaction / Q000379:methods; D014865:Waste Disposal, Fluid / Q000379:methods*; D014871:Water Microbiology
D004269:DNA, Bacterial; D010578:Petroleum; D049308:Dioxygenases; D050548:Catechol 1,2-Dioxygenase