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Advanced nitrogen and phosphorus removal in A

Jianhua WANG, Yongzhen PENG, Yongzhi CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 474-480 doi: 10.1007/s11783-011-0360-0

Abstract: A laboratory-scale anaerobic-anoxic-aerobic process (A O) with a small aerobic zone and a bigger anoxiczone and biologic aerated filter (A O-BAF) system was operated to treat low carbon-to-nitrogen ratioA O process, the suspended activated sludge in this A O-BAF process contained small quantities of nitrifierand aerobic zone in A O process was also investigated, and the results demonstrated that the optimumvalue was 1∶6∶2.

Keywords： Anoxic zone and biologic aerated filter (A2O-BAF) system     domestic wastewater with low carbon-to-nitrogen    

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Combined biologic aerated filter and sulfur/ceramisite autotrophic denitrification for advanced wastewater

Tian WAN,Guangming ZHANG,Fengwei DU,Junguo HE,Pan WU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 967-972 doi: 10.1007/s11783-014-0690-9

Abstract: An innovative advanced wastewater treatment process combining biologic aerated filter (BAF) and sulfurIn SCAD reactor, ceramisite was used as filter and Ca(HCO ) was used for supplying alkalinity and carbonThe BAF-SCAD was used to treat the secondary treatment effluent.Results showed that the combined system was effective in nitrogen removal even at low temperatures (8Besides, vast surface area of sulfur with diameter of 2–6 mm enhanced the rate of microbial utilization

Keywords： autotrophic denitrification     biologic aerated filter (BAF)     sulfur/ceramisite-based autotrophic denitrification    

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Influence of influent on anaerobic ammonium oxidation in an Expanded Granular Sludge Bed-Biological AeratedFilter integrated system

Daijun ZHANG, Cui BAI, Ting TANG, Qing YANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 291-297 doi: 10.1007/s11783-010-0270-6

Abstract: ANAMMOX), and methanogenesis have been successfully coupled in an Expanded Granular Sludge Bed-Biological AeratedFilter (EGSB-BAF) integrated system.120 mg·L at the outer recycle ratio of 200%, the influence of influent on ANAMMOX in the integrated systemThe good performance of the integrated system indicated that the bacterial community of denitrification

Keywords： Expanded Granular Sludge Bed-Biological Aerated Filter (EGSB-BAF) integrated system     the influence of    

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Isolation and application of an ibuprofen-degrading bacterium to a biological aerated filter for the

Bingjie Xu, Gang Xue, Xing Yang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1080-5

Abstract: itemcontent>

• Strain BL1 was applied to a laboratory-scale biological aeratedfilter system.listitem>

• Strain BL1 was stable in both static tests and in the biological aeratedfilter system.

Keywords： Ibuprofen     Biological aerated filter     Degrading bacterium     Serratia marcescens    

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Effect of short-term atrazine addition on the performance of an anaerobic/anoxic/oxic process

Changyong WU, Xiaoling LI, Zhiqiang CHEN, Yongzhen PENG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 150-156 doi: 10.1007/s11783-010-0020-9

Abstract: In this study, an anaerobic/anoxic/oxic (AO) wastewater treatment process was implemented to treat domesticThe concentrations of atrazine were 15, 10, and 5mg·L on days 1, 2 and 3, respectively.did not affect the nitrogen removal due to the high nitrification and denitrification capacity of the system

Keywords： biological nutrient removal     atrazine     anaerobic/anoxic/oxic (A2O) process     oxygen demand removal     oxygen    

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Advantages of intermittently aerated SBR over conventional SBR on nitrogen removal for the treatment

Xiaoyan Song, Rui Liu, Lujun Chen, Baogang Dong, Tomoki Kawagishi

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0941-7

Abstract: An intermittently aerated sequencing batch reactor (IASBR) and a traditional sequencing batch reactorA pre-anoxic process in the IASBR would enhance the ammonium oxidation while restrict the nitrite oxidationAnoxic duration of 40–80 min should be beneficial for achieving stable nitritation.

Keywords： Anoxic stress     Carbon source     Digested piggery wastewater     Intermittently aerated SBR (IASBR)     Total nitrogen    

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Anoxic phosphorus removal in a pilot scale anaerobic-anoxic oxidation ditch process

Hongxun HOU, Shuying WANG, Yongzhen PENG, Zhiguo YUAN, Fangfang YIN, Wang GAN

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 106-111 doi: 10.1007/s11783-009-0005-8

Abstract: The anaerobic-anoxic oxidation ditch (A /O OD) process is popularly used to eliminate nutrients fromOD process, a pilot-scale A /O OD plant (375 L) was conducted.batch tests using sequence batch reactors (12 L and 4 L) were operated to reveal the significance of anoxicand TN were 88.2%, 92.6%, 87.8%, and 73.1%, respectively, when the steady state of the pilot-scale A /OPhosphorus uptake took place in the anoxic zone by poly-phosphorus accumulating organisms could be

Keywords： wastewater treatment     anaerobic-anoxic (A2/O)     oxidation ditch (OD)     biological phosphorus removal    

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Impact of dissolved oxygen on the production of nitrous oxide in biological aerated filters

Qiang He, Yinying Zhu, Guo Li, Leilei Fan, Hainan Ai, Xiaoliu Huangfu, Hong Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0964-0

Abstract: electrophoresis (PCR-DGGE) and microelectrode technology were employed to evaluate the Nitrous oxide (N O)production in biological aerated filters (BAFs) under varied dissolved oxygen (DO) concentrations during6.0 to 2.0 mg·L , indicating that low DO may drive N O generation.system., and may be helpful for reduction of N O through regulation of DO levels.

Keywords： Nitrous oxide     Biological aerated filter     Microelectrode     Dissolved oxygen     Biofilm    

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Optimization of phosphorus removal in uniFed SBR system for domestic wastewater treatment

Xuguang TANG, Shuying WANG, Yongzhen PENG

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 475-481 doi: 10.1007/s11783-010-0244-8

Abstract: UniFed SBR system with its unique operation mode had the distinct superiority of phosphorus removal.When the feed/ decant time was extended from 2 h to 4 h, the phosphorous removal efficiency increasedIn the mode of alternation of anoxic-aerobic (A/O) condition, phosphorous removal efficiency increasedsource in the influent can be used adequately, and denitrifying phosphorus removal was carried out in anoxicstage 2 (A2).

Keywords： UniFed sequencing batch reactor (SBR)     phosphorus removal     volumetric exchange ratio (VER)     alternation of anoxic-aerobic(A/O)     domestic wastewater    

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Phase equilibrium of the ternary system of NH 4 Cl—CaCl 2 —H 2 O at 50°C

Xia LI, Junsheng YUAN, Zhiyong JI, Jianxin CHEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 75-77 doi: 10.1007/s11705-009-0296-0

Abstract: The equilibrium data on the ternary system of NHCl—CaCl—HO at 50°C were investigatedThe experimental results show that there are three pure phase crystal areas of NHCl, 2NHCl·CaCl·3HO and CaCl·2HO, two mixture phase crystal areas of NHCl and 2NHCl·CaCl·3HO, and2NHCl·CaCl·3HO and CaCl·2HO in the system.A new hydration double salt (2NHCl·CaCl·3HO) was found in the ternary equilibrium system for
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CFD evaluation of pressure drop across a 3-D filter housing for industrial gas turbine plants

ABAM,Samuel O. EFFIOM,Olayinka S. OHUNAKIN

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 192-202 doi: 10.1007/s11708-016-0406-x

Abstract: This paper investigated the flow distribution and total pressure drop across a designed 3-D filter housingintegrated with a 3-stage filtration system using computational fluid dynamics (CFD).filters were 652.8 Pa, 2692.2 Pa, 887.8 Pa, 776.2 Pa and 2304.2 Pa for I-GB, GB-GA, GA-FA, FA-HA, and HA-O,The results obtained indicated an acceptable total pressure drop of 7.2% for the entire filter housingbefore filter clean-up.

Keywords： computational fluid dynamics (CFD)     pressure drop     flow distribution     filter housing     gas turbine    

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Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr2O3 Systemwith Al2O3 and Cr2O3 Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 63-67

Abstract: lt;/sub>O<sub>3</sub> system with AI<sub>2</sub>O<sub>3</sub>and Cr<sub>2</sub>O<sub>3</sub> diluents were conducted, and the effects of reactionstarting temperature T<sub>O</sub>, diluents AI<sub>2</sub>O<sub>3</sub> and Cr<sub>2</sub>O<sub>3</sub> on the adiabatic combustion temperatureIt shows the reaction of this system is controlled by diffusion.

Keywords： cermet     combustion synthesis     Al - Cr2O3 system     thermodynamics     reaction model    

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Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC

TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 247-254 doi: 10.1007/s11708-012-0190-1

Abstract: new sensorless interior permanent magnet synchronous motor (IPMSM) drives method with extended Kalman filterThe Kalman filter is an observer for linear and non-linear systems and is based on the stochastic intromissionsimulation tests performed for different operating conditions have confirmed the robustness of the overall system

Keywords： direct torque control (DTC)     sensorless control     extended Kalman filter (EKF)     permanent magnet synchronous    

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Comparison and modeling of two biofilm processes applied to decentralized wastewater treatment

Guanglei QIU, Yonghui SONG, Peng YUAN, Liancheng XIANG, Jianfeng PENG, Ping ZENG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 412-420 doi: 10.1007/s11783-009-0141-1

Abstract: the rapidly urbanizing South China area, biological contact oxidation (BCO) process and biological aeratedfilter (BAF) process were applied in a pilot-scale experiment for decentralized wastewater treatmentThe utilization of a new media allowed BAF to perform better than BCO.The kinetic description of the COD removal process for BAF and BCO are Yang ZHANG,Zifu LI,Ibrahim B MAHMOODFront Envir Sci Eng Chin, 2011, 5(2): 291-297.Deming ZHAO, Jie CHENG, Michael R. HOFFMANN. [J].

Keywords： biological contact oxidation     biological aerated filter     decentralized wastewater treatment     kinetic model    

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CH4 and N2O emissions from double-rice cropping system as affected by Chinese milk

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 59-68 doi: 10.15302/J-FASE-2017137

Abstract: However, little is known about the integrated impacts of CMV and RS incorporation on CH and N O emissionsthe integrated impacts of CMV and RS incorporation in the early- and late-rice seasons on CH and N OCMV and/or RS incorporation produced equivalent or slightly more grain yield, while reducing N O emissionsresults demonstrate CMV and RS amendments replacing N fertilizer, maintained stable yield, mitigated N O

Keywords： Chinese milk vetch     CH4     double-rice cropping system     grain yield     N2O     rice straw    

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Title Author Date Type Operation

Advanced nitrogen and phosphorus removal in A

Jianhua WANG, Yongzhen PENG, Yongzhi CHEN

Journal Article

Combined biologic aerated filter and sulfur/ceramisite autotrophic denitrification for advanced wastewater

Tian WAN,Guangming ZHANG,Fengwei DU,Junguo HE,Pan WU

Journal Article

Influence of influent on anaerobic ammonium oxidation in an Expanded Granular Sludge Bed-Biological AeratedFilter integrated system

Daijun ZHANG, Cui BAI, Ting TANG, Qing YANG

Journal Article

Isolation and application of an ibuprofen-degrading bacterium to a biological aerated filter for the

Bingjie Xu, Gang Xue, Xing Yang

Journal Article

Effect of short-term atrazine addition on the performance of an anaerobic/anoxic/oxic process

Changyong WU, Xiaoling LI, Zhiqiang CHEN, Yongzhen PENG,

Journal Article

Advantages of intermittently aerated SBR over conventional SBR on nitrogen removal for the treatment

Xiaoyan Song, Rui Liu, Lujun Chen, Baogang Dong, Tomoki Kawagishi

Journal Article

Anoxic phosphorus removal in a pilot scale anaerobic-anoxic oxidation ditch process

Hongxun HOU, Shuying WANG, Yongzhen PENG, Zhiguo YUAN, Fangfang YIN, Wang GAN

Journal Article

Impact of dissolved oxygen on the production of nitrous oxide in biological aerated filters

Qiang He, Yinying Zhu, Guo Li, Leilei Fan, Hainan Ai, Xiaoliu Huangfu, Hong Li

Journal Article

Optimization of phosphorus removal in uniFed SBR system for domestic wastewater treatment

Xuguang TANG, Shuying WANG, Yongzhen PENG

Journal Article

Phase equilibrium of the ternary system of NH 4 Cl—CaCl 2 —H 2 O at 50°C

Xia LI, Junsheng YUAN, Zhiyong JI, Jianxin CHEN,

Journal Article

CFD evaluation of pressure drop across a 3-D filter housing for industrial gas turbine plants

ABAM,Samuel O. EFFIOM,Olayinka S. OHUNAKIN

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr2O3 Systemwith Al2O3 and Cr2O3 Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC

TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF

Journal Article

Comparison and modeling of two biofilm processes applied to decentralized wastewater treatment

Guanglei QIU, Yonghui SONG, Peng YUAN, Liancheng XIANG, Jianfeng PENG, Ping ZENG,

Journal Article

CH4 and N2O emissions from double-rice cropping system as affected by Chinese milk

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Journal Article