Dyes are considered to be hazardous, have low biodegradability and can affect human health as well as the aquatic life cycle. This research investigated methylene blue (MB) removal using an activated carbon matrix of Scirpus grouss (waste that was initially used for phytoremediation of soil). The experiment was conducted in a flask containing 0.5 g AC-SC with MB concentrations of 5 and 15 mg/L. The adsorption was monitored for 120 sec. The results showed complete removal of MB within a contact time of 30 sec using 6-AC. Surface morphology analysis showed that at 6-AC the structure was more porous. The ultimate potential of activated carbon prepared from the phytoremediation plant waste would be the best alternative for water and wastewater treatment, while it provides the alternative of phytoremediation waste management process.