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Design, development and testing of systems of water purification

Demonstration and research projects on purification and reuse of treated waters with low energy cost criteria or with the application of renewable energies.

Description

The directive 91/271 regarding the Treatment of Urban Waste Waters, and the Framework Water Directive 2000/60 , with its emphasis aimed at the preservation of water resources, and the Royal Decree 1620/2007, by means of which, the legal regime for the re-use of purified waters in Spain is established, configure a decisive regulatory environment concerning water treatment and re-use of waste water.


The need for treatment and re-use is especially significant in those geographical areas with scarcity of water resources and those of important environmental value, wherein the economic development may seriously compromise the preservation of these resources.

The tourist areas, the surroundings of protected natural spaces, the rural villages, agricultural facilities and the sanitation and water purification reality in developing countries, are especially delicate situations, since the availability of water and its quality are driving forces for the development of any society, and can be limited by the environmental, climatic, geographical or socio-economic conditions. For these areas, the preservation of the natural resources and the environment, at an affordable cost for the society is of vital interest as a fundamental route for its development in conditions of sustainability. A decisive tool to achieve this goal and to recover the degraded systems is the efficient water management, the purification of waste waters and the re-use of the generated by-products, such as water and biomass, integrated in the social and environmental background.

Regarding the treatment of waste waters, small facilities require actions that make the required conditions of the treated effluent compatible with simple operating techniques and acceptable costs of operation and maintenance . In short, more sustainable solutions are necessary. It is in this spectrum of solutions that treatment systems with low energy cost or with the application of renewable energies fit in, as well as systems of segregation of dumping and advance treatment to make re-use possible.


Within this activity, the Water Department of the ITC coordinates and works on demonstration and research projects in the matter of water purification and re-use of treated waters with low energy cost criteria or with the application of renewable energies. The studied alternatives of purification of waste waters in a decentralised manner are carried out by means of the monitoring of different demonstration projects in close cooperation with the local bodies, authorities and local councils, with the involvement of private companies and with the training of technicians who can capitalise and highlight, in the short term, the competitive advantages of this kind of technologies.

 
For all these reasons, within the activity undertaken in the matter of efficient management and treatment of water, the efforts are concentrated on the following areas of interest:

  • Projects which promote the water demand management (AQUAMAC).
  • Processes and technologies of conventional and non-conventional water treatments bearing in mind such aspects as the efficiency of the process, its energy consumption and the biomass generated (DEPURANAT, CARMAC).
  • Processes and technologies of treatment and reuse of waters by renewable energies (TECOWATER).
  • • Systems of treatment and re-use of grey waters and rainwater (REGRIS).

 

 

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