摘要：Waste tyre rubber granules were used as sorption medium in water treatment technology to remove up to 1 mg l-1 of 2,4-D and atrazine. The removal was found to be 83.2% and 87% corresponding to initial concentration of 0.5 and 1 mg l-1 of 2,4-D whereas it was 84.2% and 87.6% for atrazine. On the basis of solubility of specific solution and adsorption interaction, 15% ethyl alcohol and 15% acetone solutions were found to be effective as regeneration solvents for 2,4-D and atrazine, respectively. Even after three cycles of sorption and regeneration, rubber granules had significant residual adsorption capacity; hence it could be reused over many more cycles of operation. Finally, exhausted waste tyre rubber granules were effectively disposed by mixing it with asphalt.
