Research Article
Removal of Zinc from Aqueous Solution by Optimized Oil Palm Empty Fruit Bunches Biochar as Low Cost Adsorbent
Figure 3
(a) Surface plot of percentage of yield () as a function of highest treatment temperature (HTT) and heating rate (HR) at fixed residence time of 105 minutes. (b) Surface plot of percentage of yield () as a function of highest treatment temperature (HTT) and residence time (RT) at fixed heating rate of 10°C per minute.
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