نتایج جستجو برای: membrane filtration
تعداد نتایج: 422708 فیلتر نتایج به سال:
Phosphate-binding protein(s) was found in the inner mitochondrial membrane of calf heart by Sephadex G-200 and G-25 gel filtration. The binding activity was inhibited by N-ethylmaleimide and competed by a large amount of cold phosphate. The amount of phosphate bound to the fraction was 29 nmoles per mg of protein. Affinity chromatography with phosphate-bound Sepharose 4B confirmed the presence ...
This study explores the synergy between photocatalytic oxidation and membrane filtration using a membrane. Titanium dioxide coated alumina membranes were fabricated tested in customized Photocatalytic Membrane Reactor (PMR) module. The discoloration of methylene blue (MB), 3.2 mg·L−1 an aqueous solution, was evaluated dead-end mode. A simple 1D analytic transport surface reaction model used bas...
Big gap between experimental filtration resistance of cake layer formed on membrane surface and the hydraulic resistance calculated through the Carman-Kozeny equation, suggested the existence of a new membrane fouling mechanism: osmotic pressure during cake layer filtration in SMBR system. An osmotic pressure model based on chemical potential difference was then proposed. Simulation of the mode...
Filtration of natural and colloidal matter is an essential process in today's water treatment processes. The colloidal matter is retained with the help of micro- and nanoporous synthetic membranes. Colloids are retained in a "cake layer"--often coined fouling layer. Membrane fouling is the most substantial problem in membrane filtration: colloidal and natural matter build-up leads to an increas...
The incidence of sporadic cryptosporidiosis among 106,000 residents of 2 local government districts in northwest England before and after installation of membrane filtration of public water supplies was compared to that of 59,700 residents whose public water supplies remained unchanged. A national outbreak of foot and mouth disease in livestock during 2001 was associated with a decline in spora...
Cross-flow microfiltration (CFMF) was experimentaLLy studied for the separation of precipitates of chromium hydroxide. Although this process enables one to obtain chromium-free filtrate, a disadvantage is that the filtration flux declines rapidly due to membrane fouling. In order to avoid this fouling problem and increase the filtration flux, an electric field was applied across the membrane as...
The technique that employs flash freezing and environmental scanning electron microscopy (ESEM) was utilised for detailed investigation of the fouling materials in a membrane bioreactor (MBR). The method involves the flash freezing of a wet sample in liquid nitrogen for 10s to preserve its structure for direct ESEM observation with a high image resolution. ESEM images show that the sludge cake ...
Wastewater reuse is essential for sustainable water management. However, it requires tertiary treatment within the plant to ensure suitable quality. This project aims investigate comparative performance of conventional (sand filtration) against membrane filtration technology demonstrate viability wastewater reuse. Sand along with two filtrations, Nano Filtration (NF) and Reverse Osmosis (RO), w...
Soot trapping on GPF, TWC Membrane fabrication and soot membrane have been studied using computer numerical simulation. The results of pressure drop, filtration efficiency, morphology visualization satisfied the experimental results. simulation could clarify phenomena up to 3D-nanoscale resolution, which overcame an limitation. Visualization revealed particles first trapped substrate generating...
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