The environment is polluted by wastewaters from various industries. Wastewaters from the textile industry are problematic mainly because they contain complex and non-readily biodegradable substances.
In this master’s thesis, we assessed the efficiency of different biological, chemical and physicochemical methods in the treatment of textile wastewater. In the first phase, we evaluated the efficiency of biological treatment, which represents the best option. We determined that the conventional biological treatment was not efficient due to the low biodegradability of the wastewater. However, we decided to also carry out the unconventional biological treatment, using the fungus Dichomitus squalens and its enzymes. It demonstrated greater efficiency than the conventional biological treatment. The main removal mechanism seems to be the adsorption of pollutants on fungal biomass.
Coagulation and Fenton oxidation proved to be appropriate solutions. After coagulation, 70% of TOC was removed, while Fenton oxidation removed 61% of TOC. To obtain better results, further optimization of both processes is required.
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