The kinetics of sorption of basic dyes from aqueous solution by sphagnum moss peat
Tóm tắt
The kinetics of sorption of three basic dyes, namely, Chrysoidine (BO2), Astrazon Blue (BB3) and Astrazone Blue (BB69) onto sphagnum moss peat have been investigated. The study focuses on the application of three sorption kinetic models for predicting the uptake of basic dyes. The sorption behaviour is found to be second order, based on the assumption of a pseudo‐second order mechanism. The rate constant of sorption, the equilibrium capacity and initial sorption rate with the effect of various peat doses and initial dye concentrations have also been predicted.
Từ khóa
Tài liệu tham khảo
Allen S. J., “Peat as an Adsorbent for Dyestuffs and Metals in Wastewater”, Res. Conserv. and Recycling, 11, 25, 10.1016/0921-3449(94)90076-0
Lagergren S., 1898, “Zur Theorie der Sogenannten Adsorption Gelöster Stoffe”, Kungliga Svenska Vetenskapsakademiens. Handlingar Band, 24, 1
Sparks D. L., 1989, “Kinetics of Soil Chemical Processes”