Thermodynamics and Kinetic study of Bismarck Brown R Dye Adsorption from Aqueous Solution using Sewage Sludge

Abstract

Synthetic wastewater and other untreated water must be treated to allow for drainage into  rivers  and re-use later.  Adsorption focuses on the importance of means of extracting synthetic and inorganic contaminants from water. Research for products that are available and  inexpensive to use as adsorbents. Sewage sludge can be used to eliminate the dye Bismarck brown R. the impact of different empirical determinants such as contact time, temperature, solution pH, the weight of adsorbents, initial dye concentration, and ionic strength were implemented. The adsorption experiments involved all these equilibrium adsorption isotherms and kinetics. The implementation of Langmuir and Freundlich isotherms was examined at various temperatures, and the Langmuir isotherm showed better suitability with  experimental results. the thermodynamic determinants showed that the adsorption was an automatic practicability )∆G was negative), the positive value of (∆H) was investigated endothermically and (∆S) was positive value (random), The kinetic information c shows that the adsorption of  Bismarck brown R with activated sewage sludge belongs to the pseudo-second-order kinetics.