Utilization of Ozone Based Techniques for Industrial Effluents Depuration and Reuse

作者：Amaral Silva Nuno; Martins Rui C; Castro Silva Sergio; Quinta Ferreira Rosa M^*

来源：Journal of Advanced Oxidation Technologies, 2012, 15(1): 188-196.

Water savings, reclamation and reuse in industry are topics of increasing economic interest due to water scarcity and costs. The search for an efficient and economical method to the depuration of two different effluents, namely from vegetable wash (VW) and chemical production (CP), was investigated by advanced oxidation processes as direct ozonation and O-3/H2O2 focusing in the evaluation of their effectiveness for decomposing COD and TOC aiming water reuse. The O-3/H2O2 combined system showed the highest oxidizing power amongst the two ozonation methodologies with stronger COD and TOC degradation degrees corresponding to 100% (0 mgO(2).L-1) and 33% (38 mgC.L-1) after 120 min for the VW and 96% (38 mgO(2).L-1) and 66% (62 mgC.L-1) for the CP after 180 minutes of oxidizing procedure. From the global analysis of the results it was possible to conclude that water reutilization is feasible when the perozonation process is applied fulfilling the environmental regulations.

• 出版日期2012-1