Critical flux detection in a silica scaling RO system Lisitsin, D., Hasson, D. and Semiat, R. Desalination 186, 311-318, 2006 Reverse osmosis desalination has achieved prominence as the most cost effective desalting technology. The objective of the present paper was to develop adequate tools for diagnosing malfunctioning of the generally adopted spiral wound module design. Efforts were undertak...

A series of wound membranes of polyvinyl alcohol and recombinant spider silk protein (pNSR16) was prepared by electrospinning. The membrane was analyzed by scanning electron microscopy, atomic force microscopy, and Fourier transform infrared spectroscopy. The result showed that the three factors that affected average fiber diameter from high to low were, voltage, flow speed, and solidification ...

A reliable dynamic simulator (based on a sound process model) is highly desirable for optimizing the performance of individual membrane modules and of entire desalination plants. This paper reports on progress toward development of a comprehensive model of the complicated physical-chemical processes occurring in spiral wound membrane (SWM) modules, that accounts for the...

The economic impact of fouling in spiral wound membranes is not yet well explored. There has been an established assumption that the cost membrane processes significant, but this hypothesis thoroughly evaluated. We conducted analysis on seven full-scale installations, four nanofiltration (NF) and three reverse osmosis (RO), to estimate industrial plants. was calculated detail, including costs i...

We present the 2-D photometric decomposition of the Virgo galaxy IC3328. The analysis of the global light distribution of this morphologically classified nucleated dwarf elliptical galaxy (dE1,N) reveals a tightly wound, bi-symmetric spiral structure with a diameter of 4.5 kpc, precisely centered on the nucleus of the dwarf. The amplitude of the spiral is only three percent of the dwarf’s surfa...

INTRODUCTION In this study, membranes composed of honey (Manuka or Honeydew) and pectin were developed, and the ISO 22196 method was used to evaluate their antibacterial activities against multidrug-resistant bacteria (i.e., Staphylococcus pseudointermedius, Escherichia coli, Proteus mirabilis, Pseudomonas aeruginosa) that cause wound infection in animals. The results demonstrated that both Man...

Elucidating versatile configurations of spiral folding, and investigating the deployment performance is relevant interest to extend applicability deployable membranes towards large-scale functional configurations. In this paper we propose new schemes package flat curved finite thickness by using multiple spirals, whose governing equations render folding lines juxtaposing spirals accommodating m...