ABSTRACT
Biosorption has emerged as a competitively priced and useful option for water and wastewater treatment. Biosorption uses naturally occurring and agriculture waste materials as biosorbents, as these are renewable, inexpensive, and plentifully available. Adsorption is one of the most effective processes of wastewater treatment, because of its simplicity, convenience, ease of operation, and low cost. The chapter demonstrates that anise tea residue is indeed an efficient and viable biosorbent for the removal of methylene blue (MB) dye from polluted wastewater. The efficiency of anise tea residue for removing MB dye from aqueous solutions was computed. Adsorption kinetics depends on the adsorbate—adsorbent interaction and system condition. One of the most important variables is the dose of the biosorbent used, since it determines the capacity of the biosorbent. Temperature has a pronounced effect on the sorption process to remove the dye from solution or wastewater.
