Limited access to clean water is one of the major problems afflicting mankind. Water scarcity is
an immediate consequence of population growth, agricultural and industrial expansion, and is on
the verge of a criticai point in several zones of the globe. This ca\1s for the research and
development of new efficient water purification technologies, preferably of low cost and low
energy consumption, as we\1 as minimizing the use of chemicals and their impact on the
environrnent.
