A concise review on BTEX remediation from aqueous solutions by adsorption

The adequate provision of clean water for the emerging population is a global issue. This emphasises the importance of detecting and eradicating toxic pollutants from water and the environment. Being a major pollutant of water resources, the importance of detection and remediation of BTEX compounds from environment is highly significant and challenging. This review article summarises the recent studies provided in literature on the remediation of BTEX from aqueous solution by adsorption process. Adsorption technology is among the most promising technique in BTEX removal due to its low energy requirements, low operating costs, simplicity, and its effectiveness. Different types of adsorptive materials used in BTEX removal from aqueous media are explained together with its classification and effectiveness under number of physicochemical operation factors. The effect of various factors such as temperature, initial BTEX concentration, solution pH, and adsorbent dosage on the adsorption capacity and efficiency of BTEX removal by various adsorbents is discussed. It also addresses some prevailing gaps in this area of research together with some suggestions for the upcoming research focuses.