Resource Type

Journal Article 1682

Conference Videos 79

Conference Topics 1

Year

2024 1

2023 109

2022 169

2021 158

2020 120

2019 101

2018 100

2017 88

2016 77

2015 88

2014 68

2013 60

2012 52

2011 54

2010 66

2009 54

2008 55

2007 69

2006 53

2005 38

open ︾

Keywords

system 17

activated carbon 14

optimization 13

index system 10

system engineering 9

Artificial intelligence 8

Multi-agent system 8

management 8

Activated sludge 7

Qian Xuesen 7

adsorption 7

sewage sludge 7

kinetics 6

management system 6

public health 6

simulation 6

sustainable development 6

engineering management 5

fault diagnosis 5

open ︾

Search scope:

排序： Display mode:

Cultivation of aerobic granular sludge in a conventional, continuous flow, completely mixed activatedsludge system

Xi CHEN,Linjiang YUAN,Wenjuan LU,Yuyou LI,Pei LIU,Kun NIE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 324-333 doi: 10.1007/s11783-014-0627-3

Abstract: Aerobic granules were formed in a conventional, continuous flow, completely mixed activated sludge system(CMAS).The reactor was inoculated with seed sludge containing few filaments and fed with synthetic municipalThe settling time of the sludge and the average dissolved oxygen (DO) of the reactor were 2 h and 4.2had good settleability, and the sludge volume index (SVI) was between 50 and 90 mL·g .

Keywords： aerobic granular sludge     completely mixed activated sludge system (CMAS)     continuous flow     shear force     filamentous    

HTML PDF Collect

Microprofiles of activated sludge aggregates using microelectrodes in completely autotrophic nitrogen

Yongtao LV,Xuan CHEN,Lei WANG,Kai JU,Xiaoqiang CHEN,Rui MIAO,Xudong WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 390-398 doi: 10.1007/s11783-015-0818-6

Abstract: investigate the microbial populations and activities in a laboratory-scale sequencing batch reactor (SBR) for completelyTo quantify the microbial activities inside the sludge aggregates, microprofiles were measured usingIn the outer layer of sludge aggregates (0–700 μm), nitrite-oxidizing bacteria (NOB) showed high activity

Keywords： microelectrodes     CANON     aerobic ammonium-oxidizing bacteria     anaerobic ammonium-oxidizing bacteria     nitrite-oxidizing bacteria    

HTML PDF Collect

Responses of microbial interactions to elevated salinity in activated sludge microbial community

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 5, doi: 10.1007/s11783-023-1660-x

Abstract:

● Salinity led to the elevation of NAR over 99.72%.

Keywords： Elevated salinity     Activated sludge system     Pollution removal     Microbial interactions     Competitive relationship    

HTML PDF Collect

Simultaneous nitrification and denitrification in activated sludge system under low oxygen concentration

ZHANG Peng, ZHOU Qi

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 49-52 doi: 10.1007/s11783-007-0009-1

Abstract: In order to find the suitable conditions of this process, a mixed flow activated sludge system under

Keywords： synthetic wastewater     accessible     Simultaneous nitrification     MLSS·d     diffusion    

HTML PDF Collect

Enhanced nitrification in integrated floating fixed-film activated sludge (IFFAS) system using novel

Aoshuang Jing, Tao Liu, Xie Quan, Shuo Chen, Yaobin Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1153-0

Abstract: The integrated floating fixed-film activated sludge (IFFAS) process is an ideal preference for nitrificationattributing to the longer sludge age for nitrifiers.hydrophilicity, positive charge and nitrification-enhancing capability were made and implemented in IFFAS systemsludge).types of bacteria, especially for Nitrosomonadales and Nitrospirales (the functional nitrifiers in the system

Keywords： Biofilm carrier     Clinoptilolite     Integrated floating fixed-film activated sludge (IFFAS)     Microbial community    

HTML PDF Collect

Interactions between metal ions and the biopolymer in activated sludge: quantification and effects ofsystem pH value

Yun Zhou, Siqing Xia, Binh T. Nguyen, Min Long, Jiao Zhang, Zhiqiang Zhang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0898-6

Abstract: Interactions of Pb(II) and biopolymer were quantified at various system pH values.System pH values significantly affect the quenching constant values for both peaks.Removal mechanism of metal ions by activated sludge system was further disclosed.from activated sludge were investigated.The Ka values of peak B were bigger than those for peak A at the same system pH values.

Keywords： Metal ions     Biopolymer     Activated sludge     Three-dimensional excitation emission matrix (3D-EEM)     Fluorescence    

HTML PDF Collect

A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 272-279 doi: 10.1007/s11783-010-0234-x

Abstract: A hybrid membrane process for simultaneous sludge thickening and digestion (MSTD) was studied.cycle (15 d) of operation under a hydraulic retention time of 1 d, the concentration of mixedsuspended solids (MLSS) continuously increased from about 4 g·L to 34 g·L, and the mixed

Keywords： membrane filtration     sludge digestion     sludge thickening     waste activated sludge    

HTML PDF Collect

Comparison between inhibitor and uncoupler for minimizing excess sludge production of an activated sludge

CHEN Guowei, XI Pengge, XU Deqian, YU Hanqing

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 63-66 doi: 10.1007/s11783-007-0012-6

Abstract: In order to study the minimization of excess sludge production, the reduction in the excess sludge productionThe experimental results show that such an addition could effectively reduce the production of excess sludgeestablished in this work, energy uncoupling coefficient () was used to evaluate the reduction in excess sludgethe presence of dNP, and that dNP was an effective uncoupler for reducing the production of excess activatedsludge without affecting the microbial respiration activity.

Keywords： uncoupling coefficient     Cu     minimization     presence     uncoupling    

HTML PDF Collect

Modification of the activated sludge model for chemical dosage

Shuai MA,Siyu ZENG,Xin DONG,Jining CHEN,Gustaf OLSSON

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 694-701 doi: 10.1007/s11783-014-0732-3

Abstract: Full-scale experiments have been carried out to adapt the activated sludge model ASM2d to include thePhosphorus removal rates, nitrification rates, as well as pH and sludge settling performance, were evaluatedhigh mole concentrations, Fe addition results in a higher phosphorus removal rate than Al ; 2) the sludgesettling velocity will increase due to the metal addition; 3) the respiration rate of the activatedsludge is decreased more by the dosage of Al than Fe ; 4) the inhibition of Al on the nitrification

Keywords： chemical precipitation     benchmark simulation model     phosphorus removal     respiratory rate     sludge settling     activated sludge model    

HTML PDF Collect

Tank-dependence of the functionality and network differentiation of activated sludge community in a full-scale

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1636-x

Abstract:

● Environmental parameters affected functional bacteria and network associations.

Keywords： Activated sludge     Bacterial community     Tank-dependence     Network association     Functional bacteria    

HTML PDF Collect

Micro-analysis of nitrogen transport and conversion inside activated sludge flocs using microelectrodes

Lei WANG, Yongtao LV, Xudong WANG, Yongzhe YANG, Xiaorong BAI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 633-638 doi: 10.1007/s11783-011-0329-z

Abstract: To investigate the nitrogen transport and conversion inside activated sludge flocs, micro-profiles of

Keywords： nitrogen transport     activated sludge flocs     heterotrophic bacteria     nitrifying bacteria     microelectrodes    

HTML PDF Collect

Biogenic palladium prepared by activated sludge microbes for the hexavalent chromium catalytic reduction

Luman Zhou, Chengyang Wu, Yuwei Xie, Siqing Xia

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1206-4

Abstract: • Pd nanoparticles could be reduced and supported by activated sludge microbes. • The effect of biomassIn this study, Pd nanoparticles (PdNPs) were generated through enzymatic recovery by microbes of activatedsludge at various biomass/Pd, and further used for the Cr(VI) reduction.The results show that biomass had a strong adsorption capacity for Pd(II), which was 17.25 mg Pd/g sludge

Keywords： Palladium nanoparticles     Activated sludge     Hexavalent chromium    

HTML PDF Collect

Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activatedsludge process to the membrane bioreactor process

Frontiers of Environmental Science & Engineering doi: 10.1007/s11783-021-1483-6

Abstract: a growing number of wastewater treatment plants (WWTPs) are being retrofitted from the conventional activatedsludge (CAS) process to the membrane bioreactor (MBR) process, the debate on the techno-economy of MBR

Keywords： Membrane bioreactor (MBR)     Conventional activated sludge (CAS)     Cost-benefit analysis     Data envelopment    

HTML PDF Collect

Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1453-z

Abstract:

• ZnO-NP disrupted metabolic/catabolic balance of bacteria by affecting DHA activity.

Keywords： Granular sludge     Biotoxicity     Reactive oxygen species     Extracellular polymeric substances    

HTML PDF Collect

Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effect

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 623-632 doi: 10.1007/s11783-011-0334-2

Abstract: Effect of pH ranging from 4.0 to 11.0 on co-fermentation of waste activated sludge (WAS) with food wasteresults showed that the addition of food waste significantly improved the performance of WAS fermentation systemmixture of WAS and food waste than the sole WAS indicated a synergistic effect existing in fermentation system

Keywords： waste activated sludge (WAS)     food waste     co-fermentation     short-chain fatty acids (SCFAs)     pH     synergistic    

HTML PDF Collect

Title Author Date Type Operation

Cultivation of aerobic granular sludge in a conventional, continuous flow, completely mixed activatedsludge system

Xi CHEN,Linjiang YUAN,Wenjuan LU,Yuyou LI,Pei LIU,Kun NIE

Journal Article

Microprofiles of activated sludge aggregates using microelectrodes in completely autotrophic nitrogen

Yongtao LV,Xuan CHEN,Lei WANG,Kai JU,Xiaoqiang CHEN,Rui MIAO,Xudong WANG

Journal Article

Responses of microbial interactions to elevated salinity in activated sludge microbial community

Journal Article

Simultaneous nitrification and denitrification in activated sludge system under low oxygen concentration

ZHANG Peng, ZHOU Qi

Journal Article

Enhanced nitrification in integrated floating fixed-film activated sludge (IFFAS) system using novel

Aoshuang Jing, Tao Liu, Xie Quan, Shuo Chen, Yaobin Zhang

Journal Article

Interactions between metal ions and the biopolymer in activated sludge: quantification and effects ofsystem pH value

Yun Zhou, Siqing Xia, Binh T. Nguyen, Min Long, Jiao Zhang, Zhiqiang Zhang

Journal Article

A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Journal Article

Comparison between inhibitor and uncoupler for minimizing excess sludge production of an activated sludge

CHEN Guowei, XI Pengge, XU Deqian, YU Hanqing

Journal Article

Modification of the activated sludge model for chemical dosage

Shuai MA,Siyu ZENG,Xin DONG,Jining CHEN,Gustaf OLSSON

Journal Article

Tank-dependence of the functionality and network differentiation of activated sludge community in a full-scale

Journal Article

Micro-analysis of nitrogen transport and conversion inside activated sludge flocs using microelectrodes

Lei WANG, Yongtao LV, Xudong WANG, Yongzhe YANG, Xiaorong BAI

Journal Article

Biogenic palladium prepared by activated sludge microbes for the hexavalent chromium catalytic reduction

Luman Zhou, Chengyang Wu, Yuwei Xie, Siqing Xia

Journal Article

Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activatedsludge process to the membrane bioreactor process

Journal Article

Biotoxicity evaluation of zinc oxide nanoparticles on bacterial performance of activated sludge at COD

Journal Article

Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effect

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

Journal Article