Treatment of residual lubricating oil using rice husk-based material as ecological adsorbent

One of the most significant environmental problems the world population faces is the inadequate disposal of petroleum derivatives. Lubricant oil is a hazardous waste due to its properties and characteristics. This study is a new proposal for using rice waste as an adsorbent to remove lubricating oil...

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Bibliographic Details
Published in:Epidemiology and Vaccinal Prevention
Main Authors: Farias, R. B. H. B., Pinto, D., Goulart, M. L., Igansi, A. V., Loebens, L., Yılmaz, M., Silva Oliveira, Luis Felipe, Andreazza, R., Cadaval Jr, T. R. S., Quadro, M. S.
Format: Article in Journal/Newspaper
Language:English
Published: Springer Japan 2023
Subjects:
Adsorption
Lubricating oil
Rice husk
Adsorption capacities
Arctic
Online Access:https://hdl.handle.net/11323/9932
https://doi.org/10.1007/s10163-022-01524-4
https://repositorio.cuc.edu.co/
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Summary:One of the most significant environmental problems the world population faces is the inadequate disposal of petroleum derivatives. Lubricant oil is a hazardous waste due to its properties and characteristics. This study is a new proposal for using rice waste as an adsorbent to remove lubricating oils from a water medium. Rice husk from local industries was prepared using four different techniques: thermal treatment, alkaline treatment, acid treated and without treatment. The experiment used a mineral-based lubricating oil for gasoline and ethanol engines as adsorbate. Absorbents were characterized using thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), morphological structure (SEM), energy-dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) analysis. Specific surface area and pore size distribution (BET/BJH). The adsorbent without treatment showed the smallest surface area (0.79 m2 g−1), while the adsorbent produced using acid treatment showed the largest (3.71 m2 g−1). The adsorption kinetic behavior was obtained by adjusting the pseudo-first-order, pseudo-second-order, and Elovich models. Elovich models showed more adequate results to represent the kinetic profile. The adsorbents showed high adsorption capacities, ranging from 1650 to 2000 mg g−1. The adsorbent produced using heat treatment (RH-H) was the most efficient for removing lubricating oil.

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