Antibiotics removal from piggery wastewater by a novel aerobic-microaerobic system: Efficiency and mechanism

An Overview of Photocatalytic Membrane Degradation Development

“…There are two main forces that drive the p meation: hydraulic pressure, which pushes solvent molecules through the membrane, and motic pressure, which opposes the flow of solvent due to the presence of dissolved species the wastewater [60]. The Knudsen diffusion mechanism is dominant when d/λ < 0.2 [6 Knudsen diffusion occurs only during gas transfer across nano porous membrane; thu it is useful in removing gases and volatile organic compounds from wastewater [62,6 Molecular sieves may also be used to purify water [64]. Solution-diffusion is the ma transport in dense membranes.…”

“…Rani et al used a membrane photocatalytic reactor containing suspended TiO 2 photocatalytic particles for naphthalene removal. They studied the impact of different operating parameters such as the initial concentration of naphthalene (5-25 mg/L), photocatalyst loading (0.1-0.9 g/L), and pH (3)(4)(5)(6)(7)(8)(9) on naphthalene removal rate. The maximum naphthalene removal by separate photocatalysis and membrane was 76.8% and 49.1%, respectively, while a naphthalene removal of 90.2%.…”

“…Industrial organic pollutants such as hormones, pesticides, pharmaceutically active substances, and personal care products have become a growing environmental concern due to their continuous release into the waterways and subsequent detrimental effects on human health, plants, soil, and aquatic systems [1][2][3][4]. Over a long period, antibiotics in their active form (low doses) and their main components can alter microbial communities in bodies of water [5,6]. Studying water samples of wastewater treatment plants in Beijing, China, revealed high concentrations of tetracycline, sulfonamides, and quinolones [7].…”