Paramaters of pretreating wastewater polluted with chemicals based on modified Fenton's reaction

The pharmaceuticals present in the municipal sewage reach the municipal sewage treatment plants, but most often fail to be completely removed in there. Therefore, in the case where they constitute a substantial part of the sewage stream (hospitals, clinics, pharmacological production plants) their chemical pretreatment seems justifiable. A method based on the modification of Fenton's reaction has been suggested. It consisted in replacing peroxide hydrogen with compressed air and enhancing the reaction by UV rays and copper cations Cu ⁺² as catalysts. All the process parameters have been determined experimentally. The possibility of implementing the method in industry has been taken into consideration, therefore the values of the parameters such as pH and aeration intensity were established on a lower level despite the fact that their higher values were more effective.