Recycling of textile wastewaters treated with various combinations of advanced oxidation processes (AOP)
- Authors: Aleksandra Krivograd Klemenčič, Mario Krzyk, Darko Drev, Damjan Balabanič, Boris Kompare
- Citation: Acta hydrotechnica, vol. 25, no. 42, pp. 31-39, 2012.
- Abstract: Advanced oxidation processes (AOPs) are widely used for treatment of wastewaters containing recalcitrant organic compounds from industrial and municipal wastewater; many advantages over other technologies have been found and good treatment results have been obtained so far. Approaches which reduce fresh water consumption are especially important for regions with shortage in fresh water resources and in high water-consuming industries. Within AOP4Water (a multinational project funded under the CORNET programme), combinations of different AOP methods are being tested with the final aim to enable cost-efficient reuse of AOP-treated effluents from textile industry. The key to wastewater reuse lies in increasing the efficiency of AOP treatment that ensures the required water quality and decreasing operational costs. In the present study a series of experiments was performed with real textile industry effluents using a single AOP method as well as combinations. Following AOP treatments were applied: ozone (O3); O3+ UV irradiation (UV); O3 + hydrogen peroxide (H2O2); and O3 + H2O2 + UV. The most effective combination for colour and COD removal was O3 + H2O2 + UV with 75% - 86% of colour removal and 15% of COD removal.
- Keywords: advanced oxidation processes (AOPs), hydrogen peroxide (H2O2), ozonation (O3), UV irradiation, textile effluents, water reuse
- Full text: a42ak.pdf
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