As in many regions it is no longer possible to satisfy the growing demands
for water by conventional methods an increased production of potable water
from saline waters is called for, One option with growing importance is the
desalination of seawater with reverse osmosis using decentralised desalina
tion plants with a fresh water capacity of few hundred to few thousand m(3)
/d. Requested are plants that are easy to handle, able to be operated unatt
ended under rough working conditions and require the lowest possible pretre
atment, Reverse osmosis plants designed in accordance to the "plug and play
" approach and equipped with the open channel disc tube module type DT usin
g selected membranes can meet the requirements of this application niche of
desalination technology, Technical details of the module and this plant co
ncept as well as operating results are discussed.