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    STUDY OF MICRO-POLLUTATS AND COMPOUNDS OF PRIORITY INTEREST IN COASTAL WATER AND WASTEWATER.

     

    WWTPs are designed to remove organic matter, nitrogen and phosphorus, but not emerging pollutants or substances defined as priorities in the Water Framework Directive. Since analytical techniques made it possible to quantify such substances (the levels of which are normally very low), it has been seen that their removal in WWTPs is generally not sufficient to prevent them from accumulating in an aquatic medium. The detection and treatment of emerging pollutants remains an important challenge as regards improving the quality of both underground and surface water. The European Union is addressing this kind of pollutants and has established broad lines of action in Framework Directive 2000/60/CE (WFD).

    CALAGUA has been working on the application of analytical techniques to identify, detect, characterize and quantify micro-pollutants in both water and sludge lines in WWTPs. Analytical methods have been developed to determine them, using solid phase micro-extraction, gas chromatography or capillary liquid chromatography for separation and mass spectrometry for quantification.

    Low-cost methods which can easily be transferred to industry will also be studied. Studies will also be conducted into the removal of these pollutants in different types of treatment, including conventional treatment such as that of active sludge, and in new processes for organic matter removal (anaerobic membrane reactor) and nutrient removal (micro-algae cultivation). The presence of these substances in effluents and aquatic media, and likewise in algae, sediments and biota, will be also studied.





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