title: Removal of methylene blue from wastewater using fly ash as an adsorbent by hydrocyclone.
abstract: The excessive release of color into the environment is a major concern worldwide. Adsorption process is among the most effective techniques for color removal from wastewater and fly ash has been widely used as an adsorbent. Therefore, this study was carried out to understand the adsorption behavior of methylene blue from aqueous systems onto fly ash using the continuous mode. Continuous mode sorption experiments were carried out to remove methylene blue from its aqueous solutions in hydrocyclone equipment. The experiments were performed at constant temperature and dimensions of hydrocyclone with variation of flows through the equipment, concentrations of methylene blue solutions and fly ash concentration, respectively. A maximum removal of 58.24% was observed at adsorbent dosage of 900 mg/l at pH 6.75 for an initial methylene blue concentration of 65 mg/l.
authors.affiliation: Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, P.O. Kharagpur Technology, West Bengal Pin 721302, India.
authors.forename: K
authors.initials: K
authors.lastname: Rastogi
authors.forename: J N
authors.initials: JN
authors.lastname: Sahu
authors.forename: B C
authors.initials: BC
authors.lastname: Meikap
authors.forename: M N
authors.initials: MN
authors.lastname: Biswas
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D060729:Coal Ash; D008751:Methylene Blue / Q000302:isolation & purification*; D010316:Particle Size; D052638:Particulate Matter / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
chemical_list: D060729:Coal Ash; D052638:Particulate Matter; D014874:Water Pollutants, Chemical; D002244:Carbon; D008751:Methylene Blue