SORPTION OF BASIC-DYES BY HYDRILLA-VERTICILLATA

The potential of an aquatic plant, Hydrilla verticillata, to remove tw o basic dyes, methylene blue and basic blue, from aqueous solutions wa s assessed under various experimental conditions. Results showed that dried Hydrilla was able to remove the dyes efficiently and rapidly. It s breakthrough time under flow conditions could be predicted using Hut chin's bed depth-service time (BDST) model. As Hydrilla is readily ava ilable, it could represent a cheap source of biosorbent for basic dyes .