SURKOVA T., KREPL V.
Abstract
Almost all states of the Middle Asia faced with a deficiency of fresh water. The problem of the fresh water and
especially, drinking water has been a major concern in the Aral Sea region, where desiccation of the Aral Sea has
become an ecological catastrophe. Deficiency of the quality drinking water is due to the fact of inaccessibility
and the poor quality of water from the natural sources, but also due to the poor water treatment technologies in
the major cities of the region. Within the framework of the project “Improvement of the quality of drinking and
irrigation water in the Aral Sea region by cleaning equipment and sorbents produced in the Czech Republic” testing
of various types of water treatment technologies has been conducted in order to find the most advantageous
method of water treatment, taking into account the quality of the water but also considering the maintenance
costs of the equipment. In order to take into account the various seasonal changes of preliminary characters of
the water, the testing of the water treatment equipment has been conducted during the winter and summer times
of 2006. As a result of these testing and lab analysis the optimal water treatment method has been found, which
can be used in the region.
Key words:
Aral Sea region, drinking and irrigation water, water treatment technologies, reverse osmosis, dissolved solids