Research Article

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

Figure 4

Effect of solution pH on the adsorption of MB dye onto the prepared adsorbents at pH 6 ( ), adsorbent dose = 0.15 g/25 mL, and initial MB concentration = 100 mg/L.
208087.fig.004