Research Abstracts

Energy Recovery, Inc.’s Big Rotor Pressure Exchanger is the result of over 100 years of technology development. Work exchanger devices developed for seawater RO plants are considered by many to be the most important breakthrough in desalination in the last 10 years. What has made this breakthrough p

All of the Saudi large MSF plants operate within the context of dual-purpose facilities for the simultaneous production of power and water. Such co-generation arrangement uses either backpressure or extraction condensing turbine. Co-generation cycles which were used till 1982 were employing extracti

We studied the elimination of fluorides from underground water by adsorption on chitosan followed by e lectrodialysis with the help of the CMX-ACS membranes, After determining the optimal conditions of the defluorudation of a synthetic water by the chitosan extract from the chitin of the pink shrimp

A parametric investigation was theoretically performed for the vertical multiple-effect diffusion-type solar still, which consists of a number of vertical partitions in contact with saline-soaked wicks with narrow gaps between the partitions, coupled with a heat-pipe solar collector. The proposed st

The paper describes the work carried out in the development of a small wind-powered desalination plant. An alternative control system was studied to serve as a direct interphase between a reverse osmosis desalination plant and a small wind energy conversion system. The main purpose was to reduce or

A pilot study for reclamation of secondary treated sewage effluent in Singapore was conducted using a MF/RO system with the capacity of 20 m3/d. A 0.1 µm MF membrane from Asahi and RE-4040-FL RO membrane from Saehan were used in this study. The pilot plant consists of six spiral-wound RO elements. T

This paper presents the results of a study which has been carried out to investigate the crevice corrosion behavior of high-alloy stainless steel in a SWRO pilot plant. The study evaluated the corrosion performance of some austenitic and duplex steels in a crevice-forming environment created in a RO

A numerical study was carried out to investigate the micro-climatic environmental conditions inside a greenhouse– distillation system, self-sufficient for irrigating water. The greenhouse consists of the planting cavity, circulating air channels and roof solar distiller for the production of a rathe

A reuse system for carwash water with a cellulose acetate (CA), hollow-fiber-type ultrafiltration membrane with the aid of flocculation and activated carbon treatments was proposed. The multi-blended flocculating agent containing bentonite, Al2(SO4)3, sodium alginic acid and a cationic polyacrylamid