Dye adsorbent by activated carbon

Dyes are used extensively in many industries making the research on color production
more important. Despite that, dyes are important class of pollutant in which it is disposed
in water resources and causes major environmental problems due to toxicity and
carcinogenic property of dye. However, the disposed dye into the environment can be
treated by several alternatives. In this study, activated carbon derived from pineapple
crown, core and peel were prepared by chemical activation using phosphoric acid
(H3PO4). Laboratory prepared activated carbons were used to identify the suitability of
its application to adsord methylene blue and malachite green. The results indicated that
the activated carbon derived from pineapple crown shows maximum adsorption of
methylene blue (38.6%) and malachite green. This study shows a benefit of transforming
agriculture waste to value added product and also helps to solve over abundance
pineapple waste problem