THE APPLICATION OF TANNIN AS COAGULANT IN REUSE OF WATER FROM WASHING CAR AND THE VALORIZATION OF GENERATED WASTE (SLUDGE) IN
Keywords:
gestão de água, resíduos sólidos, sustentabilidadeAbstract
In this work we have studied the application of tannin in the treatment of effluents from washing cars, applying coagulation, flocculation, sedimentation, filtration and disinfection in order to recycle the water and to investigate the use of water treatment residuals in agriculture. The tests which have been conducted in the laboratory were also validated in a treatment plant at real scale. The obtained results showed that it is possible to obtain water with the requirement quality for reuse. Regarding the application of generated sludge, the best results were obtained with the combination of this residue with the commercial substrate, showing the applicability of tannin sludge in agriculture. In conclusion, the purposed methodology has showed that the application of tannin as coagulant allows the water reuse from washing car and it configures a sustainable opportunity for the water treatment residuals management.
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