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Kinetic modeling of organic and nitrogen removal from domestic wastewater in a down-flow hanging sponge bioreactor
被引:5
|作者:
Dinh Thi Nga
[1
]
Nguyen Trung Hiep
[2
]
Nguyen Tri Quang Hung
[2
]
机构:
[1] Hochiminh City Univ Nat Resources & Environm, Res Inst Sustainable Dev, Ho Chi Minh City, Vietnam
[2] Nong Lam Univ Hochiminh City, Fac Environm & Nat Resources, Ho Chi Minh City, Vietnam
关键词:
Domestic wastewater;
Down-flow hanging sponge;
Kinetic modelling;
Removal efficiency;
Stover-Kincannon model;
SEQUENCING BATCH REACTOR;
ACTIVATED-SLUDGE PROCESS;
BED BIOFILM REACTOR;
PERFORMANCE EVALUATION;
ANAEROBIC SLUDGE;
FACTORIAL DESIGN;
UASB REACTOR;
DHS SYSTEM;
BIODEGRADATION;
OPTIMIZATION;
D O I:
10.4491/eer.2018.390
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
A down-flow hanging sponge (DHS) bioreactor was operated for the treatment of domestic wastewater. The Stover-Kmcannon model was applied for kinetic evaluation of the reactor performance during the operational period. As a result, the coefficient of determination (R-2) for straight lines of effluent concentration from the experimental data and from the predictive data of BOD5; NH4+ -N; and TN were 0.9727; 0.9883; and 0.9934, respectively. The calculation of saturation value constant (Umax - g L-1 d(-1)) and maximum utilization rate constant (KB - g L-1 d-1) were 56.818 and 75.034 for BOD5; 2.960 and 4.713 for NH4+ -N; 2.810 and 8.37 for TN, respectively. The study suggests that Stover-Kincannon model can be used for effective evaluation of kinetic removal of BOD5; NH4+-N; and TN from domestic wastewater treated in a DHS bioreactor.
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页码:243 / 250
页数:8
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