title: Bifunctional composite from spent "Cyprus coffee" for tetracycline removal and phenol degradation: Solar-Fenton process and artificial neural network.
abstract: Removals of tetracycline and photocatalytic degradation of phenol by Fe3O4/coffee residue (MCC) were investigated. Brunauer-Emmett-Teller (BET), vibrating sample magnetometer (VSM) and Boehm titration were employed to characterize MCC. Artificial neural network (ANN) model was developed to predict the tetracycline (TC) concentration in the column effluent. Maximum tetracycline adsorption capacity of 285.6mg/g was observed in a batch system. High removal efficiency (87%) was obtained at 3.3mL/min flow rate, 8.0cm bed height and 50mg/L influent TC concentration in a column system. Complete degradation of phenol by solar-Fenton was attained at 60min irradiation time. Total organic carbon (TOC) removal increased to 63.3% in the presence of 1.0g/L MCC, 1.2g/L H2O2 and solar irradiation. MCC showed remarkable potential to remove antibiotics from wastewater even in the presence of heavy metal (Ni(2+)) via magnetic separation.
authors: Department of Chemistry, Eastern Mediterranean University, Gazimagusa, TRNC via Mersin 10, Turkey. Electronic address: akeem.oladipo@emu.edu.tr.
authors: Akeem Adeyemi
authors: AA
authors: Oladipo
authors: Department of Chemistry, Eastern Mediterranean University, Gazimagusa, TRNC via Mersin 10, Turkey.
authors: Mosab Ali
authors: MA
authors: Abureesh
authors: Department of Chemistry, Eastern Mediterranean University, Gazimagusa, TRNC via Mersin 10, Turkey. Electronic address: mustafa.gazi@emu.edu.tr.
authors: Mustafa
authors: M
authors: Gazi
mesh_terms: D000327:Adsorption; D002384:Catalysis; D003069:Coffee / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D008962:Models, Theoretical; D016571:Neural Networks, Computer; D016877:Oxidants / Q000633:toxicity; D019800:Phenol / Q000302:isolation & purification*; D012212:Rheology; D017550:Spectroscopy, Fourier Transform Infrared; D013472:Sunlight; D013696:Temperature; D013752:Tetracycline / Q000302:isolation & purification*; D013997:Time Factors; D014866:Waste Products
chemical_list: D003069:Coffee; C045076:Fenton's reagent; D016877:Oxidants; D014866:Waste Products; D019800:Phenol; D006861:Hydrogen Peroxide; D007501:Iron; D013752:Tetracycline
keywords: Antibiotics; Artificial neural network; Coffee residue; Fixed-bed; Magnetic separation; Phenol