XIA Guang-hua;ZHAO Xio-dong;LIAO Run-hua
. 2013, 44(07): 1024-1028.
Abstract (
)
Download PDF (
)
Knowledge map
Save
To enhance the adsorption performance of porous suspension ceramsite (psc) , this paper describes experiments in which Fe3O4 and activated carbon composite were coated onto the surface of porous suspension ceramsite, and this composite media was used for sorption experiment with methylene blue solution , conducted a study on the various process parameters , such as the impregnation ratio, carbonization temperature, the activation temperature , activation time , the magnetic powder added amount, the results show that: the optimum conditions for modification of porous suspension ceramsite are at a KOH/glucose ratio of 4, a carbonization temperature of 400 ℃, an activation temperature of 850℃ and a hold time of 2h, a magnetic powder dosage by 10%. The adsorption removal efficiency of methylene blue solution (1mg/L) by modified ceramsite reached 88.1%, wich is 3.15 times as unmodified ceramisite. The modification is very effective