WASTE-WATER RECYCLING SUPPLIED BY RENEWABLE ENERGIES - BASIC CONDITIONS AND POSSIBLE TREATMENT TECHNOLOGIES

The providing of pure water for human needs and irrigation is one of t he most important problems of many countries in hot climate. Moreover waste water is not purified at all or insufficiently. Purified waste w ater could be used by mankind e.g. for irrigation in order to establis h a closed water circulation. Excellent solar- and wind conditions in the regions with hot climate suggest an energy supply with renewable e nergies for many applications. The feasibility of the combination of p urification plants with a renewable energy supply is investigated. The investigations are carried out as follows: first of all the problemat ic of water and energy supply in developing countries is described. Th en a general analysis of the system structure in view of the energy su pply is made. A waste water treatment plant (WWTP) with a low energy d emand which is adapted to a renewable power supply is designed. To pre sent the investigations more clearly they refer to data representative for Jordan. (C) 1998 Published by Elsevier Science Ltd. All rights re served.