Investigation of Effective Parameters on Starch Adsorption from Aqueous Solutions by Iron-Chitosan Nanoparticles

Subject Areas : Environment Pullotion (water and wastewater)

Khashayar Mohamadbeigy ¹ , Amir hessam Hassani ² , Seyedeh Hoda Rahmati ³ , amirhossein javid ⁴

1 - PHD Student of Environmental Engineering, Department of Natural Resources and Environment, Science and Researc Branch, Islamic Azad University, Tehran, Iran.
2 - Professor, Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.
3 - Assistant Professor, Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran. * (Corresponding Author)
4 - Professor, Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Received: 2021-11-22 Accepted : 2022-01-23 Published : 2023-06-22

Keywords: Adsorption, Isotherm, Chitosan, Starch, Nanoparticles,

Abstract :

Background and Objective: Starch is widely used in food, pharmaceutical, paper & textile industry in large quantities. The wastewater of these units have high biological oxygen demand (BOD). In this study, the adsorption capacity of starch from aqueous solution was investigated using metal nanoparticles coated with chitosan. Due to the fact that chitosan biopolymer is non-toxic, biocompatible and biodegradable and also high adsorption capacity, degradability, stability, easily production and low cost, so the possibility of this nanoparticle can be considered in starch wastewater treatment. Material and Methodology: First, magnetic nanoparticles was and the structure characteristics and morphology of this nano particle were investigated. Then, the performance of nano-adsorbent and the effect of effective parameters on starch uptake, such as contact time, adsorbent, initial adsorbent concentration, temperature and pH of the solution, were studied. Finding: The results showed that it is possible the adsorption of starch with metal nanoparticles coated with chitosan. The maximum adsorption 84 present of starch is obtained at pH 5, contact time: 60 minutes and the dosage 2 mg of adsorbent per liter. According on experimental data are more compatible with the Langmuir isotherm than the Freundlich isotherm. The results also showed that these data follow a pseudo-second order kinetic model. Discussion and Conclusion: According to the results, although it is possible to reduce the amount of starch by using magnetic chitosan nanosorbent, but it is necessary to pilot and techno- economical study to investigate hybrid use with other conventional methods in treatment system of starch processing units.

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