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