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Research and application on separation technology of slurry and water under sandy-gravel stratum

Wang Guangyu,Sun Shanhui,Su Qinggui

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 41-45

Abstract:

This paper gives a summary on application technology of slurry and waterseparation in condition of sandy-gravels layers in city's busiest street on base of underground

Keywords： slurry tunnel machine     separation of slurry and water     filter-press    

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Aggregating structure in coal water slurry studied by eDLVO theory and fractal dimension

Qiang LI, Qian WANG, Jian HOU, Jiansheng ZHANG, Yang ZHANG

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 306-316 doi: 10.1007/s11708-021-0736-1

Abstract: Coal water slurry gasification is a main source of hydrogen in the developing hydrogen economy.To expand the application of coal water slurry and gasification process, it is necessary to understandIn this paper, the micro-structure in coal water slurry was studied by extended DLVO (eDLVO) theory andtypes of coals are measured and explained by the aggregating structure and fractal dimension in coal waterslurry.

Keywords： coal water slurry     extended DLVO (eDLVO)     fractal dimension     stability    

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Development and demonstration plant operation of an opposed multi-burner coal-water slurry gasification

WANG Fuchen, ZHOU Zhijie, DAI Zhenhua, GONG Xin, YU Guangsuo, LIU Haifeng, WANG Yifei, YU Zunhong

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 251-258 doi: 10.1007/s11708-007-0035-5

Abstract: The features of the opposed multi-burner (OMB) gasification technology, the method and process of the research, and the operation results of a pilot plant and demonstration plants have been introduced. The operation results of the demonstration plants show that when Beisu coal was used as feedstock, the OMB CWS gasification process at Yankuang Cathy Coal Co. Ltd had a higher carbon conversion of 3%, a lower specific oxygen consumption of about 8%, and a lower specific carbon consumption of 2%–3% than that of Texaco CWS gasification at the Lunan Fertilizer Plant. When Shenfu coal was used as feedstock, the OMB CWS gasification process at Hua-lu Heng-sheng Chemical Co. Ltd had a higher carbon conversion of more than 3%, a lower specific oxygen consumption of about 2%, and a lower specific coal consumption of about 8% than that of the Texaco CWS gasification process at Shanghai Coking & Chemical Corporation. The OMB CWS gasification technology is proven by industrial experience to have a high product yield, low oxygen and coal consumption and robust and safe operation.
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Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1606-1615 doi: 10.1007/s11705-022-2200-0

Abstract: techniques were applied to characterize the obtained membranes, which were then used to separate the oil–watermodified membrane displayed good hydrophobicity with a contact angle of 135.2° ± 0.3°, and its oil–waterseparation performance was as high as 97.8%.After 20 recycle tests, the oil–water separation performance remained more than 96%, which was attributed

Keywords： oil–water separation     wasted reverse osmosis membrane     hydrophobic modification    

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Bioinspired and biomimetic membranes for water purification and chemical separation: A review

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1412-8

Abstract:

•The history of biological and artificial water channels is reviewed

Keywords： Aquaporins     Artificial water channels     Biomimetic membranes     Chemical separation and water purification    

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Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1377-1386 doi: 10.1007/s11705-022-2157-z

Abstract: The preparation of environmentally friendly oil/water separation materials remains a great challenge.In this paper, a degradable fluorine-free superhydrophobic film (max. water contact angle of approximatelyIn addition, after cross-laminating the two samples, the films had the ability to separate oil and waterThe method has potential for the large-scale fabrication of degradable superhydrophobic filtration separation

Keywords： wood nanotechnology     superhydrophobic     biodegradable     surface modification     oil/water separation    

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Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 46-55 doi: 10.1007/s11705-022-2170-2

Abstract: wastewater produced each day, it is important to develop superhydrophilic/underwater superoleophobic oil/waterseparation membranes with ultrahigh flux and high separation efficiency.The obtained mesh was able to separate oil/water mixtures only by gravity.In addition, the mesh showed high-efficiency separation ability (99.2%) and ultrahigh flux (235239 L∙

Keywords： oil/water separation     N-isopropylacrylamide     stainless steel mesh     ultrahigh flux    

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Mechanism of ethanol/water reverse separation through a functional graphene membrane: a molecular simulation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 347-357 doi: 10.1007/s11705-022-2246-z

Abstract: However, to date, the reverse-separation performance of ethanol/water is poor and the separation mechanismwith tunable apertures and functional groups have shown substantial potential for use in molecular separationUsing molecular dynamics simulations, for the first time, we reveal two-way selectivity in ethanol/waterseparation through functional graphene membranes.performance, with an ethanol/water separation factor of 34 and a flux value of 69.3 kg∙m‒2

Keywords： reverse separation     graphene membrane     ethanol/water separation     molecular simulation    

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Experimental study on slurry-induced fracturing during shield tunneling

Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 333-345 doi: 10.1007/s11709-021-0718-8

Abstract: Facial support in slurry shield tunneling is provided by slurry pressure to balance the external earthand water pressure.Hydraulic fracturing may occur and cause a significant decrease in the support pressure if the slurryPreventing the occurrence of hydraulic fracturing in a slurry shield requires investigating the effectsIn this study, a hydraulic fracturing apparatus was developed to test the slurry-induced fracturing of

Keywords： slurry shield tunneling     hydraulic fracturing test     fracturing pressure     fracture dip     unconfined compressivestrength     slurry viscosity    

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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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Research and application of construction slurry of shield tunnel under water-rich sandy gravel stratum

Deng Hengyi,Xu Xueying,Chen Mingjuan

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 79-82

Abstract:

Aiming to the slurry shield construction of underground diameter projectfrom Beijing railway station to Beijing railway west station, the optimum slurry ratio in the conditionwas proposed through the proportional tests, which improved the forming quality and velocity of the slurry

Keywords： slurry shield     sandy gravel stratum     proportion of slurry    

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Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 775-792 doi: 10.1007/s11705-020-1991-0

Abstract: recycling raw materials increased the interest in the production of highly selective and efficient separationThis work discusses the concept and separation mechanisms of imprinted membranes.The recent advances in water treatment, such as pesticide removal and recovery of metal ions, are alsomembranes in hybrid processes are highlighted, and a look into the future of membrane separations for water

Keywords： sustainable processes     membrane separation     molecular recognition     imprinted membranes     water treatment    

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Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 830-839 doi: 10.1007/s11705-022-2267-7

Abstract: The separation efficiency of the emulsified oil was 99.3%, and the water flux was up to 2020 L·m

Keywords： adsorption     oil–water separation     underwater superoleophobicity     wastewater treatment    

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MILP synthesis of separation processes for waste oil-in-water emulsions treatment

Zorka N. Pintarič,Gorazd P. Škof,Zdravko Kravanja

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 120-130 doi: 10.1007/s11705-016-1559-1

Abstract: This paper presents a novel synthesis method for designing integrated processes for oil-in-water (O/WGeneral superstructure involving alternative separation technologies is developed and modelled as a mixedSeparation processes in the superstructure are divided into three main sections of which the pretreatmentIntegrated processes composed of selected separation techniques for given ranges of input chemical oxygenindustrial case study for deriving optimal combinations of technologies for treating diverse oil-in-water

Keywords： oil-in-water emulsion     chemical oxygen demand     superstructure     process synthesis     MILP    

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Study on ground settlement of large diameter slurry shield construction in water-rich sandy gravel stratum

Zhao Baohua,Hu Xibo,Zhang Bing,Li Wenjun

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 94-97

Abstract:

Beijing underground diameter project is located in the water-rich sandy

Keywords： water-rich sandy gravel     large diameter     slurry shield     settlement law    

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Title Author Date Type Operation

Research and application on separation technology of slurry and water under sandy-gravel stratum

Wang Guangyu,Sun Shanhui,Su Qinggui

Journal Article

Aggregating structure in coal water slurry studied by eDLVO theory and fractal dimension

Qiang LI, Qian WANG, Jian HOU, Jiansheng ZHANG, Yang ZHANG

Journal Article

Development and demonstration plant operation of an opposed multi-burner coal-water slurry gasification

WANG Fuchen, ZHOU Zhijie, DAI Zhenhua, GONG Xin, YU Guangsuo, LIU Haifeng, WANG Yifei, YU Zunhong

Journal Article

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

Journal Article

Bioinspired and biomimetic membranes for water purification and chemical separation: A review

Journal Article

Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures

Journal Article

Fabrication of a superhydrophilic/underwater superoleophobic stainless steel mesh for oil/water separation

Journal Article

Mechanism of ethanol/water reverse separation through a functional graphene membrane: a molecular simulation

Journal Article

Experimental study on slurry-induced fracturing during shield tunneling

Teng WANG, Dajun YUAN, Dalong JIN, Xinggao LI

Journal Article

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

Journal Article

Research and application of construction slurry of shield tunnel under water-rich sandy gravel stratum

Deng Hengyi,Xu Xueying,Chen Mingjuan

Journal Article

Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Journal Article

Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Journal Article

MILP synthesis of separation processes for waste oil-in-water emulsions treatment

Zorka N. Pintarič,Gorazd P. Škof,Zdravko Kravanja

Journal Article

Study on ground settlement of large diameter slurry shield construction in water-rich sandy gravel stratum

Zhao Baohua,Hu Xibo,Zhang Bing,Li Wenjun

Journal Article