obtained from the modified Stover-Kincannon and Grau
second-order models in the previous studies with
coefficients determined in this research. In the current
study, KB and Umax values are larger than those calculated
by Jin and Zheng (2009) [11], Ni et al., (2010) [12] and
Alavi et al., (2011) [13]. Presumably, this variation in value
depends on influent wastewater composition, the type of
activated culture applied to the reactor and the type of reactor.
The authors believe this indicates that the UABF reactor
has a higher capability for the treatment of
wastewaters with high nitrogen content.
Conclusions
The anammox upflow anaerobic biofilm (UABF) reactor is
an efficient process for nitrogen removal from wastewater.
Gradual decreasing of HRT and increasing of NLR
reduced nitrogen removal efficiency. The NRR increased
exponentially while NLR increased during operation time.
The Grau second-order model and the modified StoverKincannon
model were appropriate to describe the nitrogen
removal of the UABF reactor. Even though the correlation
coefficient of the both models were high (R2
=0.999),
model testing indicated that the modified StoverKincannon
model was slightly more suitable for nitrogen
removal kinetics in the UABF reactor.
obtained from the modified Stover-Kincannon and Grausecond-order models in the previous studies withcoefficients determined in this research. In the currentstudy, KB and Umax values are larger than those calculatedby Jin and Zheng (2009) [11], Ni et al., (2010) [12] andAlavi et al., (2011) [13]. Presumably, this variation in valuedepends on influent wastewater composition, the type ofactivated culture applied to the reactor and the type of reactor.The authors believe this indicates that the UABF reactorhas a higher capability for the treatment ofwastewaters with high nitrogen content.ConclusionsThe anammox upflow anaerobic biofilm (UABF) reactor isan efficient process for nitrogen removal from wastewater.Gradual decreasing of HRT and increasing of NLRreduced nitrogen removal efficiency. The NRR increasedexponentially while NLR increased during operation time.The Grau second-order model and the modified StoverKincannonmodel were appropriate to describe the nitrogenremoval of the UABF reactor. Even though the correlationcoefficient of the both models were high (R2=0.999),model testing indicated that the modified StoverKincannonmodel was slightly more suitable for nitrogenremoval kinetics in the UABF reactor.
การแปล กรุณารอสักครู่..
