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IJCT Vol.13(6) [November 2006] >


Title: Sorption of water soluble dyes using inorganic materials as sorbents
Authors: Jayswal, Amit
Chudasama, Uma
Keywords: Wastewater treatment
Cation exchanger
Zirconium molybdate
Crystal violet
Methylene blue
Rhodamine 6G
Issue Date: Nov-2006
Publisher: CSIR
IPC CodeC02F1/00, C02F1/42
Abstract: Ion exchange technique has been used for treatment of wastewater containing dyes. Zirconium molybdate (ZM) an inorganic cation exchanger of the class of tetravalent metal acid salt has been used for the purpose. Sorption of dyes namely crystal violet (CV), methyleneblue (MB) and rhodamine6G (R6G) has been carried out on zirconium molybdate by varying pH and flow rate. The dyes can be effectively recovered by using dilute acids such as HCl, HNO3 and H2SO4. Similar studies have also been carried out using zirconia (ZO) for comparison. Considerable differences in the binding of the dyes tested, have been observed. In general, heteropolycyclic dyes exhibit more affinity towards ZM as compared to ZO.
Page(s): 539-543
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.13(6) [November 2006]

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