services

Our Services

THERMAL DESALINATION

Thermal desalination is the natural way Earth regenerates aquifers through the water cycle,
which uses solar heat to produce vapor from oceans and wind to move the vapor over the land
where it is transformed to rain For humans to replicate this process requires a concentrated non
solar thermal source and moving energy

Multiple-effect distillation (MED)

Multiple-effect distillation (MED) is a distillation process often used for sea water desalination. An MED unit is an evaporator in which sea water is evaporated in stages at low temperature to produce clean distillate water. It consists of multiple stages or «effects». In each stage the feed water is heated by steam in tubes. Some of the water evaporates, and this steam ﬂows into the tubes of the next stage, heating and evaporating more water. Each stage essentially reuses the energy from the previous stage. The tubes can be submerged in the feed water, but more typically the feed water is sprayed on the top of a bank of horizontal tubes, and then drips from tube to tube until it is collected at the bottom of the stage. The plant can be seen as a sequence of closed spaces separated by tube walls, with a heat source in one end and a heat sink in the other end. Each space consists of two communicating subspaces, the exterior of the tubes of stage n and the interior of the tubes in stage n+1

Multi-stage ﬂash distillation (MSF)

Multi-stage ﬂash distillation (MSF) is a water desalination process that distills sea water by ﬂashing a portion of the water into steam in multiple stages of what are essentially countercurrent heat exchangers The plant has a series of spaces called stages, each containing a heat exchanger and a condensate collector. The sequence has a cold end and a hot end while intermediate stages have intermediate temperatures. The stages have different pressures corresponding to the boiling points of water at the stage temperatures. After the hot end there is a container called the brine heater.

The process is similar to membrane ﬁltration. However, there are key differences between reverse osmosis and ﬁltration. The predominant removal mechanism in membrane ﬁltration is straining, or size exclusion, so the process can theoretically achieve perfect exclusion of particles regardless of operational parameters such as inﬂuent pressure and concentration. Reverse osmosis, however involves a diffusive mechanism so that separation efﬁciency is dependent on solute concentration, pressure and water ﬂux rate.