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Removal of Congo Red Dye from Aqueous Solutions using Steam Activated Pigmented Rice Husk Carbon as an Adsorbent: A Thermodynamic Study. J. Int. Acad. Phys. Sci. [Internet]. 2011 Oct. 30 [cited 2026 Oct. 23];15(6):487-95. Available from: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/663