Sea Water Desalination is a process in which salty sea water is converted into drinkable clean water. Such clean water has reasonably lower dissolved salt content so that it can be used for various industrial, agricultural or domestic use.
Sea water has around 3.5% of salt content (35000 ppm or 35 g/L TDS) having high levels of hardness and suspended solids. To make sea water fit for drinking purpose, it is necessary to have array of processes that include pretreatment to remove coarse and fine fraction (coagulation, flocculation or UF), pH adjustment, chemical dosing to reduce scaling and fouling, removal of TDS using Reverse Osmosis (SWRO), degasification, chlorine dosing etc.
As high levels of salt in feed sea water results in high osmotic pressure, it is necessary to apply high feed pressure (48-52 barg) to RO membrane modules to produce permeate water. SWRO membranes have high salt rejection typically of 99.98% and 8-10% of water recover. By smartly combining arrays of SWRO membrane in multiple stages, overall system water recovery can be adjusted up to 60-70%.
We offer small to large scale sea water desalination plants according to client’s needs. Our standard containerized desalination plants (25-500 KLD) are fitted onto ISO container with factory tested setup- which can be easily transported and deployed reducing construction and erection time. We very well understand client’ requirements and constraints so that we invest utmost efforts in providing them the most efficient, integrated and economical desalination solution.
Please contact us to know more in detail and we will assist you in establishing your next desalination plant.
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