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Adsorption of 1- (2--Hydroxy - 4--Nitrophenyl azo)-2- Napthol Dye onto the Cement Kiln Dust (CKD)

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Figure

Fig  1: Effect  of  contact time on the  removal of dye  onto  CKD  (temperature  303K,  pH  =  5-6, dye  concentration15mg  /l,  adsorbent dose =0.15g and agitation speed 150rpm)
Fig 3: Langmuir isotherm plots for different initial concentrations ranging 2-20ppm of   the dye adsorption onto CKD  at298- 328K
Fig 5: Temkin isotherm plots for different initial concentrations ranging 2-20ppm of  the dye adsorption onto CKD  at298- 328K
Fig 9: pseudo – second – order kinetic plots for adsorption of dye onto CKD at the temperature range 298-328K
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