- 555, Gwigok-dong, Sungsan-gu, Changwon, Gyeongsangnam-do, Korea
email, Tel. 02 513 6114
Doosan Heavy Industries & Construction is the world's largest desalination plant provider (in MSF, MED, RO and water treatment systems). We have steadily acquired relevant technologies and strengthened our business capabilities since 1978, when we completed our first desalination plant in Farasan, Saudi Arabia. Major projects performed to date on a turn-key basis include: Assir, Shoaiba, Shuaibah Ph.3, and Shuaibah Expansion (Saudi Arabia); Jebel Ali E, Taweelah A2, Umm Al Nar and Fujairah (the UAE); Az-Zour Project and Sabiya I &p; II (Kuwait); Sohar (Oman); Ras Laffan (Qatar); and Benghazi and Zawia (Libya). Projects under construction are Shuweihat S2 in the UAE, Jeddah RO in Saudi Arabia, and Shuwaikh RO in Kuwait.
The first desalination systems were developed in the 1940s. The technology has been advanced steadily since then, and now three main types: multi-stage flash, multi-effect distillation and reverse osmosis are in active use.
In the multi-stage flash (MSF) process, seawater is heated and evaporated repeatedly, and the steam is condensed to produce desalinated water. This method is used in about half the world's desalination plants, particularly when the plants are high-capacity.
The multi-effect distillation (MED) method is similar to multi-flash effect: hot steam passes through a tube. Sea water is sprayed on the outside of the tube and is turned to steam. The process occurs in a progression of stages (effects).