نتایج جستجو برای: spiral wound membrane
تعداد نتایج: 486863 فیلتر نتایج به سال:
Membrane processes allow scalable and energy-efficient separation of gas liquid, advance low-carbon purifications in various industrial environmental applications enable more resilient economy society. In pursuit developing advanced membranes with continuously improved separating performances, nanofillers have been commonly incorporated into to upgrade membrane properties such as mechanical rob...
National Institute for Occupational Safety and Health (NIOSH) researchers continue to study the potential for lithium and lithium-ion battery thermal runaway from an internal short circuit in equipment for use in underground coal mines. Researchers conducted cell crush tests using a plastic wedge within a 20-L explosion-containment chamber filled with 6.5% CH4-air to simulate the mining hazard....
Batch RO is designed to achieve high energy efficiency and recovery in desalination. However, so far relatively few experiments on batch have been reported. Here we present an extensive experimental study of a single-acting, free-piston system using 8-inch spiral wound membrane. The was tested the laboratory with brackish feed water containing up 5 g/L NaCl. objective quantify performance terms...
We propose a simulation study in order to evaluate the effects of concentration polarization damping by splitting a single spiral-wound membrane module in two units connected in series inside the same shell. The reverse osmosis process in each unit is described by the advection-diffusion equation in two dimensions which is solved by a finite difference technique. Several feed regimes and operat...
An optimal design strategy for membrane networks separating multicomponent gas mixtures based on an approximate permeator model and mixed-integer nonlinear programming (MINLP) is proposed. A permeator system superstructure is used to embed a very large number of possible network configurations and allows the permeator feed-side pressure to be fixed or a design variable. A MINLP design model is ...
Background: For nearly 100 years, amniotic membranes have been used to treat various types of skin wounds. Amniotic extract is one of the derivatives of amniotic membrane that contains all the properties of amniotic membrane. The aim of this study was to evaluate the safety of the amniotic membrane extract in the treatment of diabetic ulcers. Methods: This study was an Open labeled clinical tr...
CFD Investigation of the Effect of the Feed Spacer on Hydrodynamics in Spiral Wound Membrane Modules
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