Research Article

Effectiveness of Alkali-Acid Treatment in Enhancement the Adsorption Capacity for Rice Straw: The Removal of Methylene Blue Dye

Figure 3

Effect of contact time and initial MB concentrations on the removal efficiency of MB by ARS and ARS-1C at pH 6 ( ) and adsorbent dose = 0.15 g/25 mL.
208087.fig.003a
(a)
208087.fig.003b
(b)