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A new approach for scheduling of multipurpose batch processes with unlimited intermediate storage policy

Nikolaos Rakovitis, Nan Zhang, Jie Li, Liping Zhang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 784-802 doi: 10.1007/s11705-019-1858-4

Abstract: competitiveness in the global marketplace as well as the need to minimize the ecological footprint lead multipurposebatch process industries to seek ways to maximize their productivity with a simultaneous reduction ofOptimal scheduling of their processes can lead facilities towards this direction.

Keywords： scheduling     multipurpose batch processes     simultaneous transfer     mixed-integer linear programming    

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Insights into influence of aging processes on zero-valent iron modified biochar in copper(II) immobilization: from batch solution to pilot-scale investigation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 880-892 doi: 10.1007/s11705-022-2282-8

Abstract: The zero-valent iron modified biochar materials are widely employed for heavy metals immobilization. However, these materials would be inevitably aged by natural forces after entering into the environment, while there are seldom studies reported the aging effects of zero-valent iron modified biochar. In this work, the hydrogen peroxide and hydrochloric acid solution were applied to simulate aging conditions of zero-valent iron modified biochar. According to the results, the adsorption capacity of copper(II) contaminants on biochar, zero-valent iron modified biochar-1, and zero-valent iron modified biochar-2 after aging was decreased by 15.36%, 22.65% and 23.26%, respectively. The surface interactions were assigned with chemisorption occurred on multi-molecular layers, which were proved by the pseudo-second-order and Langmuir models. After aging, the decreasing of capacity could be mainly attributed to the inhibition of ion-exchange and zero-valent iron oxidation. Moreover, the plant growth and soil leaching experiments also proved the effects of aging treatment, the zero-valent iron modified biochar reduced the inhibition of copper(II) bioavailability and increased the mobility of copper(II) after aging. All these results bridged the gaps between bio-adsorbents customization and their environmental behaviors during practical agro-industrial application.

Keywords： zero-valent iron modified biochar     aging processes     copper removal     adsorption     pilot-scale experiments    

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Fuzzy Programming Based Modeling of Production Scheduling of Batch Processes

Zhang Hong,Li Chiqiang

Strategic Study of CAE 2004, Volume 6, Issue 10,   Pages 65-70

Abstract: author proposes a general novel fuzzification method based on fuzzy programming for batching production processes

Keywords： production scheduling     fuzzy programming     batching production processes     membership function    

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A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 79-87 doi: 10.1007/s11708-015-0380-8

Abstract: There has been an immense endeavor to mitigate global warming in spite of which it has only been worse. This paper presents the design and implementation of a low power and eco-friendly refrigeration system using the thermoelectric effect. The conventional refrigerators make use of complex mechanisms which involves synchronous operation of various units, namely the compressor, condensers, expansion valves, evaporator, refrigerant and so on. But a thermoelectric refrigerator exploits the principle of the Peltier effect, thus avoiding the utilization of these complex components. This even helps curb the release of harmful chlorofluorocarbons (CFCs) into the atmosphere which contributes to the increase in global temperature. Moreover, the temperature can be controlled and set to required values with the help of a microcontroller. Hence, this can be used both for domestic and commercial purposes. The unit does not eject any harmful gases. Therefore, the heat expelled from the unit can be tapped for heating utilities, making the use of this device versatile in its application. Thus this proposal aims not only at reducing the air pollutants by not contributing to it but also at reducing the power consumption.

Keywords： low power     eco-friendly     multipurpose     TEC-12706     Peltier effect     microcontroller (P89V51RD2BN)     temperature    

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Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1588-6

Abstract:

● A PAA-ZnO-HDTMS flax fiber with UV-induced switchable wettability was developed.

Keywords： Flax fiber     Switchable wettability     ZnO-HDTMS coating     Oil-water separation    

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The energy consumption in a batch stripper and a batch rectifier

Xianbao CUI, Tianyang FENG, Ying ZHANG, Zhicai YANG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 443-452 doi: 10.1007/s11705-009-0266-6

Abstract: The energy consumption in a batch rectifier and a batch stripper was investigated with a shortcut mathematicalThe minimum energy consumption of a batch stripper was compared to that of a batch rectifier under “purity specification is low and the relative volatility is small, the minimum energy consumption of a batchstripper is less than that of a batch rectifier under “general constant reflux” and “In other cases, a batch rectifier can consume less energy.

Keywords： constant reflux     feed     energy consumption     general constant     product purity    

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Influence of entrainer recycle for batch heteroazeotropic distillation

Laszlo Hegely, Peter Lang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 643-659 doi: 10.1007/s11705-018-1760-5

Abstract:

Dehydration of isopropanol applying batch heteroazeotropic distillation with toluene as entrainerThe E-rich phase, the final column hold-up and the off-cut (Mode II only) are recycled to the next batch

Keywords： batch distillation     heteroazeotropic distillation     operational policies     off-cut recycle     entrainer    

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Micromixing performance of the teethed high shear mixer under semi-batch operation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 546-559 doi: 10.1007/s11705-021-2069-3

Abstract: Semi-batch operated reaction processes are necessary for some competitive reaction systems to achieveparameters of the teethed high shear mixers were adjusted to study the micromixing performance in the semi-batchout to disclose the evolution of the flow pattern and turbulent energy dissipation rate of the semi-batchstudied in this work, which can provide valuable guidance on the design and optimization of the semi-batch

Keywords： high shear mixer     semi-batch operation     micromixing performance     Villermaux/Dushman system     segregation    

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Two-stage scheduling on batch and single machines with limited waiting time constraint

Zhongshun SHI, Zewen HUANG, Leyuan SHI

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 368-374 doi: 10.15302/J-FEM-2017034

Abstract: This study addresses the problem of two-stage scheduling on batch and single machines with limited waiting

Keywords： batch machine     flow shop     makespan     limited waiting time    

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Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 453-460 doi: 10.1007/s11705-012-1210-8

Abstract: In this study, the repeated batch fermentation was investigated for reducing waste water generated inThe waste fermentation broth was recycled in the next batch operation after the cells were separated

Keywords： batch fermentation     microbial lipid     Trichosporon cutaneum CX1     flocculation     waste water    

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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: Herein, we report an especially designed multistage-batch (two/three-stage-batch) BMED process to increaseThe 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-batchincreased by exchanging the acid produced in the acid compartment with fresh water in the second stage-batchWith the two-stage-batch BMED, the maximum concentration of the base can be obtained up to 3.40 mol∙L

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

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Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1269-2

Abstract: Abstract • Mechanisms for selective recovery of materials in electrochemical processes are discussedapplications: electrosorption based on carbonaceous and intercalation electrodes, electrochemical redox processesWe highlight the mechanisms for achieving selective materials recovery in these processes.

Keywords： Materials recovery     Electrosorption     Capacitive deionization     Redox processes     Electrochemical precipitation    

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Effect of different gas releasing methods on anaerobic fermentative hydrogen production in batch cultures

Sheng CHANG, Jianzheng LI, Feng LIU, Ze YU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 901-906 doi: 10.1007/s11783-012-0403-1

Abstract: The effect of biogas release method on anaerobic fermentative hydrogen production in batch culture system

Keywords： batch fermentation     hydrogen production     biogas releasing     hydrogen pressure     homoacetogenesis    

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Nitrifying and denitrifying bacteria in aerobic granules formed in sequencing batch airlift reactors

WANG Fang, YANG Fenglin, QI Aijiu

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 184-189 doi: 10.1007/s11783-007-0032-2

Abstract: Aerobic granules were formed in an internal-circulate sequencing batch airlift reactor (SBAR) and biodegradation
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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: In the present investigation, an anoxic/aerobic-type (A/O-type) sequencing batch MBR system, added anoxicNeither lower nor higher aeration intensities could improve A/O-type sequencing batch MBR performances

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

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Title Author Date Type Operation

A new approach for scheduling of multipurpose batch processes with unlimited intermediate storage policy

Nikolaos Rakovitis, Nan Zhang, Jie Li, Liping Zhang

Journal Article

Insights into influence of aging processes on zero-valent iron modified biochar in copper(II) immobilization: from batch solution to pilot-scale investigation

Journal Article

Fuzzy Programming Based Modeling of Production Scheduling of Batch Processes

Zhang Hong,Li Chiqiang

Journal Article

A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

Journal Article

Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Journal Article

The energy consumption in a batch stripper and a batch rectifier

Xianbao CUI, Tianyang FENG, Ying ZHANG, Zhicai YANG,

Journal Article

Influence of entrainer recycle for batch heteroazeotropic distillation

Laszlo Hegely, Peter Lang

Journal Article

Micromixing performance of the teethed high shear mixer under semi-batch operation

Journal Article

Two-stage scheduling on batch and single machines with limited waiting time constraint

Zhongshun SHI, Zewen HUANG, Leyuan SHI

Journal Article

Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

Journal Article

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

Journal Article

Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Journal Article

Effect of different gas releasing methods on anaerobic fermentative hydrogen production in batch cultures

Sheng CHANG, Jianzheng LI, Feng LIU, Ze YU

Journal Article

Nitrifying and denitrifying bacteria in aerobic granules formed in sequencing batch airlift reactors

WANG Fang, YANG Fenglin, QI Aijiu

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