Central composite design Advanced oxidation process VOCs Batch study Sorption Advanced oxidation processes Air treatment Degradation Combined processes Microfiltration Kinetics Water treatment Sulfamethazine Hydrophobic VOC Adsorption Persulfate Mineralization Absorption Oxidation Kinetic modeling Activated carbon Fouling Activated sludge Pollution Combined process Carbamazepine Nanofiltration Heavy metals Biodegradability Modelling Cyclic voltammetry Chemical scrubbing Azo dyes Modeling Clofibric acid Graphite felt Cleaning Reverse osmosis VOC Fixed bed Dyes TiO2 Continuous reactor Polyamide Electro-Fenton Isotherms Partition coefficient Simulation Antibiotics Methylene blue Biomass Mass-transfer Electrochemical oxidation Photocatalytic degradation Biofiltration Response surface methodology Electrocoagulation Chemical oxidation PH Wastewater Ultrafiltration Synergetic effect Tetracycline Filtration Azo dye Ionic liquids Phenol Removal Wastewater treatment Toxicity Optimization Ozone Aqueous-solution DFT Mass transfer Kinetic Biosorption Photocatalysis Electro-Fenton process Toluene Volatile organic compounds Prediction Pesticides Membrane Characterization Nanoparticles Isotherm Magnetite Soil Biodegradability improvement Carbon felt electrode Organic solvent nanofiltration Packing material Volatile organic compound Biogas Water Ageing Biological treatment Silicone oil Biodegradation