نتایج جستجو برای: bulk liquid membrane

تعداد نتایج: 666323  

Journal: :Journal of laboratory automation 2014
Wonmo Kang Rebecca L McNaughton Fazel Yavari Majid Minary-Jolandan Asmahan Safi Horacio D Espinosa

This brief report describes a novel tool for microfluidic patterning of biomolecules and delivery of molecules into cells. The microdevice is based on integration of nanofountain probe (NFP) chips with packaging that creates a closed system and enables operation in liquid. The packaged NFP can be easily coupled to a micro/nano manipulator or atomic force microscope for precise position and forc...

2007
Raffaella De Vita Iain W Stewart Donald J Leo

Planar bilayer lipid membranes (BLMs) are currently employed to construct many bio-inspired material systems and structures. In order to characterize the pressure effects on the equilibrium configurations of these biological membranes, a novel continuum model is proposed. The BLM is assumed to be a two-layer smectic A liquid crystal. The mean orientation of the amphiphilic molecules comprising ...

2016
Benny M. B. Ensano Laura Borea Vincenzo Naddeo Vincenzo Belgiorno Mark D. G. de Luna Florencio C. Ballesteros

This paper provides a critical review about the integration of electrochemical processes into membrane bioreactors (MBR) in order to understand the influence of these processes on wastewater treatment performance and membrane fouling control. The integration can be realized either in an internal or an external configuration. Electrically enhanced membrane bioreactors or electro membrane bioreac...

Journal: :Biomicrofluidics 2007
Dian R Arifin Leslie Y Yeo James R Friend

An effective mechanism for rapid and efficient microfluidic particle trapping and concentration is proposed without requiring any mechanically moving parts. When a voltage beyond the threshold atmospheric ionization value is applied on a sharp electrode tip mounted at an angle above a microfluidic liquid chamber, the bulk electrohydrodynamic air thrust that is generated results in interfacial s...

Journal: :محیط شناسی 0
میترا بیات کارشناس ارشد گروه مهندسی شیمی، دانشکدۀ فنی و مهندسی، دانشگاه تهران محمد رضا مهرنیا دانشیار گروه مهندسی شیمی، دانشکدۀ فنی و مهندسی، دانشگاه تهران نوید مستوفی استاد گروه مهندسی شیمی، دانشکدۀ فنی و مهندسی، دانشگاه تهران مهدی رجبی هامانه استادیار گروه مهندسی شیمی، دانشکدۀ فنی و مهندسی، دانشگاه تهران

introduction membrane bioreactor (mbr) is an effective technology for wastewater treatment and water reuse which is becoming increasingly popular due to its numerous applications and advantages over conventional activated sludge process. this novel technology have advantages of small footprint, high concentration of mixed liquor suspended solids (mlss), high removal efficiency of chemical oxyge...

A. Zamanian E. Ganji Babakhani M. Amanipour M. Heidari

A mixed proton–electron conducting perovskite was synthesized by liquid-citrate method and the corresponding membrane was prepared by pressing followed by sintering. The hydrogen permeability of BaCe0.9Yb0.1O3-δ was studied as a function of temperature and hydrogen partial pressure (PH2) gradient. Using 100% dry hydrogen at 1173 K, the hydrogen permeation rate of dense membranes (1.63 mm thick)...

Journal: :Chemical Engineering Journal 2022

• A hybrid process coupling nanofiltration and ozonation was assessed. pre-ozonated solution mixed to the water treat doped with H 2 O . Two pharmaceuticals were efficiently removed in both retentate permeate. Membrane fouling decreased by a factor two using river sample. Organic membranes not degraded oxidants water. This study assesses feasibility of designing / membrane that can simultaneous...

In this study, polyphenylsulfone (PPSU) hollow fiber membrane was fabricated via a wet spinning method with the addition of ethylene glycol (EG) in the range of 0-10 wt% as the additive. The EG was added to improve the membrane pore formation and interconnectivity for better membrane contactor performance in extracting and removing the free fatty acid (FFA) from crude palm oil (CPO). Four diffe...

2017
P. I. Dorogokupets A. M. Dymshits K. D. Litasov T. S. Sokolova

The equations of state for solid (with bcc, fcc, and hcp structures) and liquid phases of Fe were defined via simultaneous optimization of the heat capacity, bulk moduli, thermal expansion, and volume at room and higher temperatures. The calculated triple points at the phase diagram have the following parameters: bcc-fcc-hcp is located at 7.3 GPa and 820 K, bcc-fcc-liquid at 5.2 GPa and 1998 K,...

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