Photocatalytic treatment of wastewater: A model for a fast process monitoring analysis method.

摘要

Whitewater has four main classes of compounds of interest. These are fatty acids and resin acids, lignins, triglycerides, and sterol esters. A model compound is chosen for each class and will constitute a model for a fast and simple analysis of white water. The model is used for the analysis of a model water and real white water, the results for each compared.; Each model compound, model water, and real whitewater was treated by four different methods. The first being direct photolysis, the second being photolysis with UCPG204 catalyst, the third being photolysis with the catalyst and hydrogen peroxide, and fourth method being photolysis with degussa P25 TiO₂. These four methods were chosen to compare the photocatalytic activity of the catalyst, and study its efficiency. The experiments show treatment with degussa P25 TiO₂ to be the method of choice. Past experiments show that this is false; therefore the irradiation time chosen was somewhat inadequate.; The period of irradiation of 24 hours was chosen knowing that the probability of mineralization would be at a minimum. This time frame was chosen to monitor the degradation of each compound enabling construction of the model.