Research Papers by R. Sheikholeslami

Scarcity and value of fresh water has increased use of desalination technologies and alternative water sources globally. This paper briefly discusses the areas that affect the costs and identifies the areas which are believed to have been mainly neglected so far and that require specific attention i

This paper briefly discusses the current industrial practice for assessing the scaling potential of sparingly soluble salts and suggests a more theoretical approach which is expected to provide more accurate results. This theoretical approach is based on the use of Gibbs free energies of reaction fo

Desalination plays an 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 limi

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 removal and cleaning is almost impossible. Therefore, the aim is to prevent silica fouling from the inception. One of the many complicating factor

Desalination plays an 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 limi

S ilica fouling of reverse osmosis membranes w ere studied using a fiat sheet Osmonics RO cell u sing MS 19 and DS 11 membranes. The analysis o f silica fouling was based on flux decline, d issolved silica concentration and membrane p recipitate analysis. From the analysis of the e xperimental data,

Laboratory 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 invest