REVIEW ON THE EFFECTIVENESS OF ADSORBENT MATERIALS IN OIL SPILLS CLEAN UP (original) (raw)

During the last decade of the 20 th Century, oil spill pollution has become an essential area of concern on account of its serious environmental impacts and to such an extent of the pollution that it poses a universal threat, therefore, surface water spill or subsurface leakage of petroleum products has been of concern to many industries and governments and NGOs. Exploration, production and transportation of petroleum products, unprofessional discarding of petroleum wastes and stranded oil spills from pipelines, oil wells, underground storage tanks, are the foremost causes of surface and groundwater contamination. This review aims at to highlight the importance of the oil removal from contaminated sites by adsorption method and to present several adsorbents, such as natural organic sorbents, inorganic sorbents and synthetic sorbents, which are applied to treat the oil-contaminated water, their effectiveness as well as constraints and to set one's sight on the recent development of different adsorbents such as Nano carbon tube (CNT's) adsorbents, hence a lot of attention is given to this new type of adsorbent due to their exceptionally high adsorption capacity for oil-water separation and to their high hydrophobicity properties.. In this review discussion is presented on several different areas such as: (i) adsorption capacity; (ii) kinetic modeling and perspectives of the use of each adsorbent, Investigation for series of adsorbent with its characteristics.