4. Conclusion
Activated carbons were prepared from the pyrolysis of banana empty fruit bunch waste and fruit pods of Delonix regia at 450 and 400°C by chemical activation with H3PO4 and KOH. The yields of the activated carbons produced by chemical activation were found to be higher than untreated carbon. The properties of the activated carbon produced in this experiment such as surface area, chemical functional groups and ability to remove iodine and methylene blue reveals that it had an improved adsorption behavior comparable to those of high performance adsorbents. Consequently, the activated carbons produced from lingo-cellulosic waste biomass can be used as adsorbents for various environmental applications including treatment of drinking water, removing colour from industrial effluents and removal of heavy metals.