Solid/Liquid Adsorption in Water and Wastewater Treatment

Dear Colleagues,

Water pollution occurs when toxic inorganic and organic pollutants/potential pollutants from various industrial and human activities are directly and indirectly discharged into water bodies without adequate treatment. A number of treatment technologies such as membrane processes, filtration, adsorption, ion exchange, solid/liquid adsorption, coagulation, oxidation/reduction, etc., have been used to separate various water pollutants. Among the various separation techniques in water pollution control, adsorption at the solid/liquid interface is considered to be a superior technique because of its simple design, universal nature, high effectiveness, ease of operation and regeneration. When our water is polluted, it is not only devastating to the environment, but also to human health. Further, there are various federal and state government and environmental protection agencies who strictly enforce regulations on minimizing pollutants from liquid discharge effluent streams. In view of the importance of water quality and the environmental aspect, it is considered worthwhile to address the state-of-the-art adsorption at the solid/liquid interface for the removal of water pollutants from water and wastewater systems. Adsorption at the solid/liquid interface may be defined as the selective concentration or retention of one or more liquid phase component of a mixture on a solid surface or at the solid/liquid interface by various physical and chemical forces. The nature and types of adsorbents are the main controlling parameters for effectiveness of the adsorption process. Therefore, the present Special Issue entitled “Solid/Liquid Adsorption in Water and Wastewater Treatment” aims for the publication of original research or review papers on the removal of inorganic/organic pollutants from water by various conventional and  nonconventional alternative adsorbents and to provide more research information on the mechanism of adsorption. The overall scope of this Special Issue includes up-to-date development on the current state of knowledge on various adsorbents such as activated carbon, nanomaterials, functional materials, clay minerals and various agricultural biomass-based adsorbents and their applications in the broad field of the separation and purification of water pollutants. Specifically, the topics for this Special Issue include but are not restricted to:

• The synthesis and characteristics of various adsorbent materials including biomass adsorbents, clay minerals and new emerging alternative adsorbents, composite adsorbents and their adsorptive effectiveness in water purification under various physicochemical process parameters;
• Kinetics, thermodynamics and equilibrium: experimental data, novel theories and models;
• Adsorption calculations and modelling;
• Continuous column process and process design: packed bed and moving bed systems, fluidised bed, bubble column operations and dynamic modelling;
• Industrial wastewater treatments—any case study.

Dr. Tushar Kanti Sen
Guest Editor

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