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Abstract
The present study reports the treatment of synthetic dairy wastewater in terms of chemical oxygen demand removal by means of adsorption onto multi-walled carbon nanotube. The effects of contact time, initial concentration, temperature, adsorbent dosage and pH on the removal of dairy wastewater were also investigated. The equilibrium data were analyzed by the Langmuir, Freundlich, Temkin, Handersen, and Harkins-jura, and Halsey models, which revealed that Langmuir model is more suitable to describe the dairy wastewater adsorption than other models.