title: Adsorption of Cr(VI) on activated rice husk carbon and activated alumina.
abstract: The possible use of activated rice husk and activated alumina as the adsorbents of Cr(VI) from synthetic solutions and the effect of operating parameters were investigated. The activated rice husk carbon was prepared thermally in two sizes 0.3 and 1.0 mm. The maximum removal of Cr(VI) occurred at pH 2 by activated rice husk and at pH 4 by activated alumina. The amounts of Cr(VI) adsorbed increased with increase in dose of both adsorbents and their contact time. The Freundlich isotherm was applied.
authors: Department of Environmental Sciences and Engineering, Guru Jambheshwar University, Hisar 125001, Haryana, India. nrbishnoi@indiatimes.com
authors: Narsi Ram
authors: NR
authors: Bishnoi
authors: Mini
authors: M
authors: Bajaj
authors: Nivedita
authors: N
authors: Sharma
authors: Asha
authors: A
authors: Gupta
mesh_terms: D000327:Adsorption; D000537:Aluminum Oxide / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D002857:Chromium / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D012275:Oryza / Q000737:chemistry*
chemical_list: D002857:Chromium; D002244:Carbon; D000537:Aluminum Oxide