Application of low-cost adsorbents for dye removal--a review.

By Vinod Kumar Gupta, Suhas. Journal of Environmental Management, 2009

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Nanoparticles as Adsorbent; A Positive Approach for Removal of Noxious Metal Ions: A Review (2015, background): “A number of physical, chemical and biological methodologies have been developed to control these toxic contaminants successfully (Gupta and Suhas, 2009; Dean et al., 1972; Demirbas, 2008; Stafiej and Pyrzynska, 2007).”
Adsorptive Removal of Reactive Black 5 from Wastewater Using Bentonite Clay: Isotherms, Kinetics and Thermodynamics (2015, background): “The process of adsorption has an advantage over the other methods due to its cost-effectiveness and sludge free clean operation [10].”
Dye and its removal from aqueous solution by adsorption: a review. (2014, methodology): “Various methods such as adsorption, coagulation, advanced oxidation, and membrane separation are used in the removal of dyes from wastewater [14].”
Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum) (2013, positive): “Of these methods, activated carbon sorption is highly effective for the removal of dyes and pigments as well as other organic and inorganic pollution [4–10].”