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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    

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Multistage-batch bipolar membrane electrodialysis for base production from high-salinity wastewater

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 764-773 doi: 10.1007/s11705-021-2114-2

Abstract: Bipolar membrane electrodialysis (BMED) is considered a state-of-the-art technology for the conversion of salts into acids and bases. However, the low concentration of base generated from a traditional BMED process may limit the viability of this technology for a large-scale application. Herein, we report an especially designed multistage-batch (two/three-stage-batch) BMED process to increase the base concentration by adjusting different volume ratios in the acid (Vacid), base (Vbase), and salt compartments (Vsalt). The findings indicated that performance of the two-stage-batch with a volume ratio of Vacid:Vbase:Vsalt = 1:1:5 was superior in comparison to the three-stage-batch with a volume ratio of Vacid:Vbase:Vsalt = 1:1:2. Besides, the base concentration could be further increased by exchanging the acid produced in the acid compartment with fresh water in the second stage-batch process. With the two-stage-batch BMED, the maximum concentration of the base can be obtained up to 3.40 mol∙L–1, which was higher than the most reported base production by BMED. The low energy consumption and high current efficiency further authenticate that the designed process is reliable, cost-effective, and more productive to convert saline water into valuable industrial commodities.

Keywords： bipolar membrane electrodialysis     multistage-batch     base production     high-salinity wastewater    

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Dynamic analysis of rail transit elevated bridge with ladder track

He XIA, Yushu DENG, Yongwei ZOU, Guido DE ROECK, Geert DEGRANDE

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 2-8 doi: 10.1007/s11709-009-0001-x

Abstract: In this paper, a dynamic analysis model of an elevated bridge with ladder tracks under moving train loadThe whole process of a train running through an elevated bridge at different speeds is simulated.The dynamic responses of the elevated bridge with ladder track and the running safety and comfort indexCompared with the dynamic responses of an elevated bridge with ordinary non-ballasted slab track, theladder track’s effect on reducing the vibration of an elevated bridge is analyzed.

Keywords： rail transit     elevated bridge     ladder track     dynamic response    

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Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 54-61 doi: 10.1007/s11783-013-0493-4

Abstract: Seawater salinity was varied from 32 to 88 for zeolite crystallization during the hydrothermal processThe results show that seawater salinity plays an important role in zeolite synthesis with CFA duringThe products were a mixture of NaX zeolite and hydroxysodalite; seawater salinity more strongly affectedThe yield of CFA transformed into zeolite gradually rose with the increase in salinity, reaching a transformationrate of 48%–62% as the salinity increased from 32 to 88, respectively.

Keywords： coal fly ash (CFA)     seawater salinity     zeolite synthesis    

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Effect of salinity on community structure and naphthalene dioxygenase gene diversity of a halophilic

Tingting Fang, Ruisong Pan, Jing Jiang, Fen He, Hui Wang

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0888-0

Abstract: The aim of this study is to analyze the effect of salinity on polycyclic aromatic hydrocarbons (PAHs)subunits were dominant at salinities ranging from 0.1% to 20%, while not been clearly detected at 25% salinityConsistently, the biodegradation occurred at salinities ranging from 0.1% to 20%, while no at 25% salinityWe concluded that salinity greatly affected halophilic bacterial community structure and also the functional

Keywords： Phenanthrene     Halophilic bacteria     Gene diversity     Naphthalene dioxygenase genes    

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Running train induced vibrations and noises of elevated railway structures and their influences on environment

He XIA, Fei GAO, Xuan WU, Nan ZHANG, Guido DE ROECK, Geert DEGRANDE

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 9-17 doi: 10.1007/s11709-009-0010-9

Abstract: The vibrations and noises of elevated railway structures have been cause for concern due to their effectson the environment and the people living near elevated lines.In this paper, the main structural features of some new elevated bridges and station hall were introducedThe generation mechanism of vibrations and noise of elevated structures induced by trains were investigatedThe noise induced by different types of elevated bridges, their influences on the environment and the

Keywords： railway     elevated structure     bridge     station     vibration     noise     environment    

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Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and elevated

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 263-276 doi: 10.1007/s11708-021-0791-7

Abstract: The laminar flame speeds of ammonia mixed with syngas at a high pressure, temperature, and different syngas ratios were measured. The data obtained were fitted at different pressures, temperatures, syngas ratios, and equivalence ratios. Four kinetic models (the Glarborg model, Shrestha model, Mei model, and Han model) were compared and validated with experimental data. Pathway, sensitivity and radical pool analysis are conducted to find out the deep kinetic insight on ammonia oxidation and NO formation. The pathway analysis shows that H abstraction reactions and NHi combination reactions play important roles in ammonia oxidation. NO formation is closely related to H, OH, the O radical produced, and formation reactions. NO is mainly formed from reaction, HNO+ H= NO+ H2. Furthermore, both ammonia oxidation and NO formation are sensitive to small radical reactions and ammonia related reactions.

Keywords： ammonia mixed with syngas     laminar flame speed     kinetic model     sensitivity analysis     pathway analysis    

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Deflection behavior of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures

Mohammed FARUQI, Mohammed Sheroz KHAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 81-91 doi: 10.1007/s11709-018-0468-4

Abstract: However, the behavior of such members under the influence of elevated temperatures is still unknown.examines the deflection behavior of the carbon fiber reinforced polymer(CFRP) prestressed concrete beam at elevatedelement mode (FEM) of a simply supported concrete beam prestressed with CFRP subjected to practical elevated

Keywords： FRP     CFRP     concrete     elevated temperatures     deflections     prestress    

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Elevated temperature creep model of parallel wire strands

Frontiers of Structural and Civil Engineering   Pages 1060-1071 doi: 10.1007/s11709-023-0981-y

Abstract: is no existing approach to analyze their creep behavior, this study experimentally investigated the elevatedcharge-coupled camera system was incorporated to accurately obtain the deformation of the specimen during the elevatedBy comparing the elevated temperature creep test results for PWSs and steel strands, it was found that

Keywords： parallel wire strands     experimental study     elevated temperature creep model    

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Influence of loading ratio on flat slab connections at elevated temperature: A numerical study

Rwayda Kh. S. AL-HAMD, Martin GILLIE, Safaa Adnan MOHAMAD, Lee S. CUNNINGHAM

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 664-674 doi: 10.1007/s11709-020-0620-9

Abstract: imposed loading during their service life and it is important to understand the likely response at elevated

Keywords： concrete     finite elements     fire     load-induced thermal strain     punching shear    

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Experimental study on behavior of mortar-aggregate interface after elevated temperatures

Wan WANG, Jianzhuang XIAO, Shiying XU, Chunhui WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 158-168 doi: 10.1007/s11709-016-0374-6

Abstract: designed and conducted to study the meso-scale behavior of mortar-aggregate interface for concrete after elevatedThe MCs and MRACs were designed with different strength grade of mortar and were exposed to different elevatedIt is found that failure modes significantly depended on specimen type, the elevated temperature andFor MC, major cracks started to propagate along the initial cracks caused by elevated temperatures atFor MRAC, the cracks appeared at a lower level of load with the increasing elevated temperatures.

Keywords： mortar-aggregate interface     push-out test     elevated temperatures     modeled concrete (MC)     modeled recycled    

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Performance of activated carbon coated graphite bipolar electrodes on capacitive deionization method for salinity

Hossein D. Atoufi, Hasti Hasheminejad, David J. Lampert

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1278-1

Abstract: This research investigates a capacitive deionization method for salinity reduction in a batch reactor

Keywords： Capacitive deionization (CDI)     Desalination     Electrical conductivity (EC)     Graphite bipolar electrode     Activated carbon coated (ACC)    

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heterotrophic nitrification-aerobic denitrification bacterium TJPU05 suitable for nitrogen removal from high-salinity

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1503-6

Abstract:

• H. venusta TJPU05 showed excellent HN-AD ability at high salinity

Keywords： Salt-tolerant bacteria     H. venusta TJPU05     Heterotrophic nitrification and aerobic denitrification     High-salinity    

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Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1616-1

Abstract:

● Present a general concept called “salinity exchange”.

Keywords： Desalination     Potable water reuse     Ion-exchange membrane     Salinity gradient energy     Wastewater discharge    

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Salinity Gradient Energy: Current State and New Trends

Olivier Schaetzle, Cees J. N. Buisman

Engineering 2015, Volume 1, Issue 2,   Pages 164-166 doi: 10.15302/J-ENG-2015046

Abstract:

In this article we give an overview of the state of the art of salinity gradient technologies.We first introduce the concept of salinity gradient energy, before describing the current state of developmentWe conclude with the new trends in the young field of salinity gradient technologies.

Keywords： salinity gradient energy     pressure-retarded osmosis     reverses electrodialysis    

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Title Author Date Type Operation

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

Journal Article

Multistage-batch bipolar membrane electrodialysis for base production from high-salinity wastewater

Journal Article

Dynamic analysis of rail transit elevated bridge with ladder track

He XIA, Yushu DENG, Yongwei ZOU, Guido DE ROECK, Geert DEGRANDE

Journal Article

Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Journal Article

Effect of salinity on community structure and naphthalene dioxygenase gene diversity of a halophilic

Tingting Fang, Ruisong Pan, Jing Jiang, Fen He, Hui Wang

Journal Article

Running train induced vibrations and noises of elevated railway structures and their influences on environment

He XIA, Fei GAO, Xuan WU, Nan ZHANG, Guido DE ROECK, Geert DEGRANDE

Journal Article

Experimental and kinetic study on laminar flame speeds of ammonia/syngas/air at a high temperature and elevated

Journal Article

Deflection behavior of a prestressed concrete beam reinforced with carbon fibers at elevated temperatures

Mohammed FARUQI, Mohammed Sheroz KHAN

Journal Article

Elevated temperature creep model of parallel wire strands

Journal Article

Influence of loading ratio on flat slab connections at elevated temperature: A numerical study

Rwayda Kh. S. AL-HAMD, Martin GILLIE, Safaa Adnan MOHAMAD, Lee S. CUNNINGHAM

Journal Article

Experimental study on behavior of mortar-aggregate interface after elevated temperatures

Wan WANG, Jianzhuang XIAO, Shiying XU, Chunhui WANG

Journal Article

Performance of activated carbon coated graphite bipolar electrodes on capacitive deionization method for salinity

Hossein D. Atoufi, Hasti Hasheminejad, David J. Lampert

Journal Article

heterotrophic nitrification-aerobic denitrification bacterium TJPU05 suitable for nitrogen removal from high-salinity

Journal Article

Salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for

Journal Article

Salinity Gradient Energy: Current State and New Trends

Olivier Schaetzle, Cees J. N. Buisman

Journal Article