The aim of this study is to elucidate the mechanism micropollutants’ removal in drinking water by application catalytic ozonation, using transition metals as appropriate catalysts. For that purpose, degradation 500 ?g/L p-chlorobenzoic acid (p-CBA) and benzotriazole with addition 2 mg/L ozone presence 1 Co(II) or Fe(II) at pH 7.8 were examined. It was found distilled experiments, both metal ion...

The biogas produced in the methane fermentation is valuable due to its use as a renewable energy source. A promising method of production intensification sludge flocs disintegration via ozonation. aim this study was check impact ozonation on efficiency and kinetics from surplus activated (SAS). Processes were carried out batchwise at 37 °C. following analyses performed: pH, alkalinity, dry matt...

A new process which attains both excess sludge reduction and phosphorus recovery has been developed. In this paper, characteristics of sludge solubilization by ozone were investigated in batch experiments with sludge taken from an A/O reactor supplied with synthetic sewage and several real wastewater treatment plants. Then, performance of the new developed process was investigated in a laborato...

Organic phosphate pesticides are of great enviro-nmental concern primarily because they are toxic to mammals and birds, and are relatively soluble in water to contaminate surface water and groundwater [1,2]. In this study, the decomposition of phorate, a widely used organic phosphate insecticide, in aqueous solutions by Boron doped diamond(BDD) electrode was examined. The LD50 of phorate was re...

There is a growing concern about environmental pollution with digestate, which produced in significant amounts the anaerobic digestion process. The inappropriate application of digestate agriculture may lead to ammonia emission atmosphere, nutrients infiltration groundwater and surface waters eutrophication. great interest development efficient downstream technologies that will help better hand...

Photocatalytic oxidation/ozonation of a mixture eight pharmaceuticals added to secondary effluent, SE, an urban wastewater treatment plant has been studied using TiO2 supported on commercial Al2O3/SiO2 ceramic foams. As radiation source UVA LEDs (365 nm) or solar was used. Pharmaceuticals were at high (1 mg L−1 each) relatively low (50 μg concentration, contributing 25% and 1.5% the initial TOC...