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Realization of the First Water Plant with Biological Removal of Iron and Manganese

Li Dong,Yang Hong,Zhang Jie

Strategic Study of CAE 2003, Volume 5, Issue 7,   Pages 53-57

Abstract: The process included weak aeration and one filtration.

Keywords： biological fixation and removal of manganese     weak aeration     economic process     simultaneous removal    

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Influence of aeration intensity on the performance of A/O-type sequencing batch MBR system treating azo

Xinhua WANG, Jingmei LI, Xiufen LI, Guocheng DU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 615-622 doi: 10.1007/s11783-011-0362-y

Abstract: Among the numerous parameters affecting the membrane bioreactor (MBR) performance, the aeration intensitypretreatment to improve the biodegradability of azo dye wastewater, was investigated under different aerationNeither lower nor higher aeration intensities could improve A/O-type sequencing batch MBR performancesThe results showed 0.15 m ·h aeration intensity was promising for treatment of azo dye wastewater underUnder this aeration intensity, chemical oxygen demand (COD), ammonium nitrogen and color removal as well

Keywords： batch membrane bioreactor     azo dye     aeration intensity     extracellular polymeric substances     sludge properties    

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Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 943-955 doi: 10.1007/s11708-021-0793-5

Abstract: This paper investigates and discusses the interaction stability issues of a wind farm with weak gridHowever, when it is applied to multiple WTs within a wind farm, its weak-grid performance regarding theof a stability margin quantification index, not only the interactions between the wind farm and the weak

Keywords： weak grids     voltage source (VS) control     wind turbine (WT)     stabilization control     wind farm     inertial    

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Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1494-3

Abstract:

• A Passive Aeration Ditch was developed to treat decentralized wastewater

Keywords： Decentralized wastewater     Passive aeration ditch     Biofilm formation     C/N ratio     Salinity     Model simulation    

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Characteristics of night soil and leaf co-composting using aerobic static method

Xiaojie SUN, Dunqiu WANG, Wenjing LU, Hongtao WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 421-427 doi: 10.1007/s11783-011-0380-9

Abstract: Three influencing factors, including proportion of night soil and leaf, aeration rate and aeration patternThe 0.14 m ·min ·m aeration rate was most beneficial to composting, and the mixture of night soil andThe continuous aeration pattern during composting was superior to an intermittent aeration pattern, since

Keywords： night soil     leaf     aerobic compost     aeration rate     aeration pattern    

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Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 753-760 doi: 10.1007/s11783-011-0368-5

Abstract: of sonication on enhancing the sludge gravitational thickening with very low energy dose, so called “weakResults showed that weak sonication significantly changed the sludge settlability and the main mechanismWeak sonication (<680 kJ·kg DS) improved the sludge gravitational thickening while high ultrasonic energyWeak sonication could substitute expensive polyelectrolyte coagulant for sludge thickening.Combination of weak sonication and polyelectrolyte could further reduce the settling time to 6 h.

Keywords： activated sludge     sonication     settlability     dry weight     extracellular polymeric substances     polyelectrolyte    

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Performance of completely autotrophic nitrogen removal over nitrite process under different aeration

GUO Jinsong, YANG Guohong, FANG Fang, QIN Yu

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 439-445 doi: 10.1007/s11783-008-0046-4

Abstract: performance of completely autotrophic nitrogen removal over nitrite (CANON) process under different aerationWhereas in the intermittently-aerated reactor, at the aeration/non-aeration ratio of 1.0, ammonium wasalways under the detection limit and 86% of TN was removed with DO between 2.0–2.5 mg/L during the aerationResults show that CANON could be achieved in both continuous and intermittent aeration pattern.In addition, the DO in the CANON system should be adjusted to the aeration mode, and low DO was not a

Keywords： Synthetic wastewater     process     Whereas     biofilm     detection    

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Modeling and analysis of magnetic dipoles in weak magnetic field

WANG Zhaoxia, ZHANG Weimin, LIU Hongguang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 222-225 doi: 10.1007/s11465-008-0028-z

Abstract: The formula to compute the normal component of the weak magnetic field is deduced based on the spatial

Keywords： geomagnetic     theory     important criterion     magnetic leakage     normal component    

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Stability analysis on Tingzikou gravity dam along deep-seated weak planes during earthquake

Weiping HE, Yunlong HE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 69-75 doi: 10.1007/s11709-012-0146-x

Abstract: The stability of a gravity dam against sliding along deep-seated weak planes is a universal and importantThere is no recommended method for stability analysis of the dam on deep-seated weak planes under earthquakesearching a proper way to evaluate the seismic safety of the dam against sliding along deep-seated weakplanes and the probable failure modes of dam on deep-seated weak planes during earthquake.in the second mode, the dam together with part foundation will slide along the path consist of the weak

Keywords： gravity dam     deep-seated weak planes     stability against sliding     earthquake    

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Engineering practice of mechanical soil aeration for the remediation of volatile organic compound-contaminated

Yan Ma, Xiaoming Du, Yi Shi, Deyi Hou, Binbin Dong, Zhu Xu, Huiying Li, Yunfeng Xie, Jidun Fang, Zheng Li, Yunzhe Cao, Qingbao Gu, Fasheng Li

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0870-x

Abstract: Engineering practice of mechanical soil aeration in China is reviewed.Mechanical soil aeration is a simple, effective, and low-cost soil remediation technique that is particularlyThis study reviews current engineering practice and developmental trends of mechanical soil aeration

Keywords： Soil contamination     Volatile organic compound     Mechanical soil aeration     Engineering practice     China    

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Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 208-224 doi: 10.1007/s11709-011-0111-0

Abstract: To improve the understanding on the failure behavior and its anchoring effect of weak-broken rock slope

Keywords： progressive failure     weak-broken rock     slope     model test     bolt    

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Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 400-409 doi: 10.1007/s11708-017-0459-5

Abstract: This paper proposes a control strategy for interface of distributed energy sources into the weak gridThe controller proposed has been implemented on the PV system connected with the weak grid using the

Keywords： PV system     grid interface     feedback linearization     inverter     LCL filter    

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Wavelet design for extracting weak fault feature based on lifting scheme

JIANG Hong-kai, WANG Zhong-sheng, HE Zheng-jia

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 199-203 doi: 10.1007/s11465-006-0009-z

Abstract: Weak fault features of mechanical signals are usually immersed in noisy signals.A new wavelet method based on lifting scheme to match weak fault characteristics is proposed.engineering results confirm that the proposed method is better than other wavelet methods for extracting weakModulus maxima of the detail signal in every operation cycle are extracted, the position and time that weak

Keywords： misalignment     imbalance     particular     position     mechanical    

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Extended stochastic resonance (SR) and its applications in weak mechanical signal processing

Niaoqing HU, Min CHEN, Guojun QIN, Lurui XIA, Zhongyin PAN, Zhanhui FENG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 450-461 doi: 10.1007/s11465-009-0072-3

Abstract: This paper presents a method based on stochastic resonance (SR) to detect weak fault signal.Then, the frequency range of the weak signals that the SR model can detect is extended through a typeFinally, the method is applied to extract the weak characteristic component from heavy noise to indicate

Keywords： extended stochastic resonance (SR)     stability analysis of SR     scale transform     weak signal detection     incipient    

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Weak characteristic information extraction from early fault of wind turbine generator gearbox

Xiaoli XU, Xiuli LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 357-366 doi: 10.1007/s11465-017-0423-4

Abstract:

Given the weak early degradation characteristic information during early fault evolution in gearboxA weak characteristic information extraction based on µ-SVD and local mean decompositionExperimental results show that this method can significantly weaken signal noise, effectively extract the weak

Keywords： wind turbine generator gearbox     µ-singular value decomposition     local mean decomposition     weak characteristic    

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Title Author Date Type Operation

Realization of the First Water Plant with Biological Removal of Iron and Manganese

Li Dong,Yang Hong,Zhang Jie

Journal Article

Influence of aeration intensity on the performance of A/O-type sequencing batch MBR system treating azo

Xinhua WANG, Jingmei LI, Xiufen LI, Guocheng DU

Journal Article

Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Journal Article

Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD

Journal Article

Characteristics of night soil and leaf co-composting using aerobic static method

Xiaojie SUN, Dunqiu WANG, Wenjing LU, Hongtao WANG

Journal Article

Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Journal Article

Performance of completely autotrophic nitrogen removal over nitrite process under different aeration

GUO Jinsong, YANG Guohong, FANG Fang, QIN Yu

Journal Article

Modeling and analysis of magnetic dipoles in weak magnetic field

WANG Zhaoxia, ZHANG Weimin, LIU Hongguang

Journal Article

Stability analysis on Tingzikou gravity dam along deep-seated weak planes during earthquake

Weiping HE, Yunlong HE

Journal Article

Engineering practice of mechanical soil aeration for the remediation of volatile organic compound-contaminated

Yan Ma, Xiaoming Du, Yi Shi, Deyi Hou, Binbin Dong, Zhu Xu, Huiying Li, Yunfeng Xie, Jidun Fang, Zheng Li, Yunzhe Cao, Qingbao Gu, Fasheng Li

Journal Article

Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Journal Article

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Journal Article

Wavelet design for extracting weak fault feature based on lifting scheme

JIANG Hong-kai, WANG Zhong-sheng, HE Zheng-jia

Journal Article

Extended stochastic resonance (SR) and its applications in weak mechanical signal processing

Niaoqing HU, Min CHEN, Guojun QIN, Lurui XIA, Zhongyin PAN, Zhanhui FENG,

Journal Article

Weak characteristic information extraction from early fault of wind turbine generator gearbox

Xiaoli XU, Xiuli LIU

Journal Article