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