Ethanol Central composite design Synergetic effect Sorption Advanced oxidation process Mass-transfer Oxidation Environment Response surface methodology DFT Degradation Optimization Methylene blue H2S Hydroxyl radicals Antibiotics Mass transfer Azo dyes Microfiltration Silicone oil Membrane Cleaning TiO2 Electroreduction Biomass VOCs Organic solvent nanofiltration Clofibric acid Azo dye Combined processes Dye Polyamide Volatile organic compounds Tetracycline Wastewater Modelling Nanofiltration Fenton Photocatalysis Absorption Toxicity Combined process Metronidazole Fermentation Ultrafiltration Carbon felt electrode Dyes Characterization Hydrogen peroxide Packing material Kinetic modeling Carbamazepine Heavy metals Water Mineralization Filtration Biodegradation Chemical oxidation Advanced oxidation processes Isotherm Activated sludge Biogas Soil Electro-Fenton Adsorption Biodegradability Continuous reactor Biofiltration Persulfate Magnetite Biological treatment Kinetic Ozone Sulfamethazine Isotherms Ionic liquids VOC Ageing Biosorption Kinetics Pesticides Coupling process Toluene Chemical scrubbing Electro-Fenton process Air treatment Water treatment Fouling Electrochemical oxidation Graphite felt Fixed bed Hydrophobic VOC Activated carbon Wastewater treatment Electrocoagulation Modeling Nanoparticles Removal Desalination Cyclic voltammetry