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Silica fouling

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... important role in producing pure water from brackish water. Reverse osmosis (RO) is by far the most efficient way to remove colloidal and dissolved silica, which can be found in high concentrations in brackish water. The presence of silica and its ability to foul membranes limits the use of silica... plant. Concentration polarisation (C/P) in the system was experimentally determined with a simple technique that was developed and its effects on fouling are examined. In addition tests were carried out to examine the actual fouling mechanism in reverse osmosis units under various experimenta ...
Desalination 139 (2001)

... tests with simulated waters in the range of those in a prospective desalination plant were carried out to determine the water quality effects on silica precipitation both in batch and dynamic tests using RO membranes. In this study the effect of cations on silica polymerization was investigated.... most notably iron which was possibly due to corrosion in the pump. Desalination 126 (1999) 267–280 Effects of water quality on silica fouling of desalination plants R. Sheikholeslami*, S. Tan School of Chemical Engineering and Industrial Chemistry, The University of New South Wales ...
Desalination 126 (1999)

Colloidal silica (SiO2) is perhaps the most undesirable inorganic deposit formed in process industrial waters, either in bulk or on surfaces, such as membrane heat... for experimental assistance and useful discussions. Desalination 167 (2004) 257–272 Use of antiscalants for mitigation of silica (SiO2) fouling and deposition: fundamentals and applications in desalination systems Eleftheria Neofotistou, Konstantinos D. Demadis* Department of Chemistry ...
Desalination 167 (2004)

... Silica is one of the major foulants in desalination of brackish water. Its presence limits the water recovery and in addition once foulant is formed, the... the water recovery and in addition once foulant is formed, the removal and cleaning is almost impossible. Therefore, the aim is to prevent silica fouling from the inception. One of the many complicating factors is the effect of various cations and anions present in the water on silica polymerizatio ...
Desalination 139 (2001)

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