Removal of cationic dyes from aqueous solution by adsorption on peanut hull.
The potential feasibility of peanut hull particle for removal of three cationic dyes (methylene blue, brilliant cresyl blue and neutral red) from aqueous solution was investigated. The effects of various experimental parameters were examined and optimal experimental conditions were decided. Above the value of initial pH 4, three dyes studied could be removed effectively. The isothermal data fitted the Langmuir model or Freundlich model. The adsorption processes followed the pseudo-first-order rate kinetics. The results in this study indicated that peanut hull was an attractive candidate for removing cationic dyes from dye wastewater.
Gong
Renmin
R
College of Life Science, Anhui Normal University, Wuhu 241000, PR China. rmgong.nju@163.com
Li
Mei
M
Yang
Chao
C
Sun
Yingzhi
Y
Chen
Jian
J
D000327:Adsorption; D010367:Arachis / Q000737:chemistry*; D002412:Cations; D004396:Coloring Agents / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008751:Methylene Blue / Q000302:isolation & purification; D009499:Neutral Red / Q000302:isolation & purification; D009994:Osmolar Concentration; D010078:Oxazines / Q000302:isolation & purification; D010316:Particle Size; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D014877:Water Pollution, Chemical / Q000517:prevention & control*
D002412:Cations; D004396:Coloring Agents; D010078:Oxazines; D014874:Water Pollutants, Chemical; D009499:Neutral Red; C006797:Brilliant Cresyl Blue; D008751:Methylene Blue