Background: Tetracycline is the second most common group of antibiotics in terms of production and consumption worldwide, and its entry into domestic and environmental sources can become water sources. Conventional methods for removing antibiotic pollutants from aqueous solutions is the surface adsorption method using bio-magnetic nanocomposites (nickel cellulose), which can be innovative, easy, low-cost and high-efficiency by using agricultural products such as lyphasynthesis.
Objective: To investigate the removal of tetracycline antibiotic pollution in aqueous solutions using a degradable, biocompatible and economical method from agricultural waste sources as bioabsorbent.
Methodology: In this study, cellulose extracted from palm leaves was used as a bioabsorbent in order to prepare magnetized biological nanocomposite (nickel/cellulose) to remove tetracycline pollution. The magnetized bio-composite was identified by XRD, SEM, FT-IR, and VSM analyses. The absorption of tetracycline was investigated according to the variables of pH, initial concentration of tetracycline, temperature, amount of adsorbent and contact time with the adsorbent.
Finding:The maximum amount of tetracycline absorption in nano bioabsorption was obtained atpH 5.5 and the concentration of tetracycline absorbent 0.004mg/100ml, temperature055c, , amount of adsorbent 0.16g and contact time80 minutes.
In this research,the reaction rate is pseudo-second order and The absorption isotherm followsthe Langmuir equation, and The thermodynamic results showed that the surface absorption process is multi-layered reversible ,spontanteous and endothermic.
The maximum removal efficiency of tetracycline was obtained at the initial concentration96.7%
Conclusion: The results of this study showed that the process of surface absorption with the application of magnetized (nickel/cellulose) bio-composite as bioadsorbent is very effective and efficient and this process can be used to remove tetracycline antibiotic pol