نتایج جستجو برای: pore blocking model

تعداد نتایج: 2178899  

Hossein Mirsaeedghazi, Mohammad Aboonajmi Mohammad Hossein Kianmehr Morteza Aliasghari Aghdam,

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

Journal: :journal of membrane science and research 0
h.y. wong school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 seberang prai selatan, pulau pinang, malaysia k.k. lau department of chemical engineering, faculty of engineering, universiti teknologi petronas, bandar seri iskandar, 31750, tronoh, perak darul ridzuan, malayisa enrico drioli national research council, institute on membrane technology (itm-cnr) c/o university of calabria - cubo 17c, 87036 rende cs, italy o.b. seng school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 seberang prai selatan, pulau pinang, malaysia

direct contact membrane distillation (dcmd) which emerges as an alternative separation technology can effectively perform a colloidal separation process under thermal driven force. dcmd is capable of extracting pure water from aqueous solutions containing non-volatile nanoparticles through the hydrophobic microporous membrane when a vapour pressure difference was established across the membrane...

Enrico Drioli, H.Y. Wong K.K. Lau O.B. Seng,

Direct contact membrane distillation (DCMD) which emerges as an alternative separation technology can effectively perform a colloidal separation process under thermal driven force. DCMD is capable of extracting pure water from aqueous solutions containing non-volatile nanoparticles through the hydrophobic microporous membrane when a vapour pressure difference was established across the membrane...

Journal: Polyolefins Journal 2017

A polypropylene microporous membrane (PPMM) was fabricated by thermally induced phase separation (TIPS) method. The effects of protein size and structure as well as filtration pressure on the membrane performance and fouling mechanisms were investigated using two different proteins, bovine serum albumin (BSA) and collagen, in dead-end filtration setup. Obtained results showed that, for each pro...

Journal: :international journal of environmental research 2011
j. lee h. zhang y. liu x. liu g. miao

approach of organic material anaerobic biodegradation and species of organic matter in sediment are discussed, and then a classifying method of the species is proposed on a new viewpoint. the pore water sediment oxygen demand (sod) numerical model in bottom sediment system is proposed originally, which differs from other advection-dispersion-sorption (ads) model in adding a sod-creating term. t...

Journal: :The Analyst 2014
Kay J Krause Enno Kätelhön Serge G Lemay Richard G Compton Bernhard Wolfrum

Nanoporous redox cycling devices are highly efficient tools for the electrochemical sensing of redox-active molecules. By using a redox-active mediator, this concept can be exploited for the detection of molecular binding events via blocking of the redox cycling current within the nanopores. Here, we investigate the influence of different blocking scenarios inside a nanopore on the resulting re...

Journal: :Journal of Membrane Science 2022

Typical mathematical frameworks for modelling the blocking behaviour of a filter due to particle deposition fall into one two categories: continuum approximation, whereby is assumed occur in such way that all pores material are same state at any given time; or discrete model, where treated as individual events both space and time. While former computationally inexpensive, latter allows variatio...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1995
M M Zarei J A Dani

The open-channel structure of the N-methyl-D-aspartate (NMDA) receptor was investigated to explain apparently conflicting interpretations about ionic interactions within the pore. Patch-clamp techniques were applied to tissue-cultured rat hippocampal neurons from the CA1 region. A wide range of ammonium derivatives was studied to learn about the structure of the pore from permeability and open-...

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