Assessment of density separation methods for microplastics extraction from soil

CHE MUSTAFHA, CHE THAQIF (2021) Assessment of density separation methods for microplastics extraction from soil. [Project Paper] (Submitted)

Text FPSK4 2021 19.pdf Download (3MB)

Abstract

Introduction: For the separation of microplastics from soils, many density separation methods utilizing a variety of density separation solutions have been developed, however their application to tropical soils is limitedly being investigated. Objective: The aim of this research was to validate the performance of selected density separation solutions and to select the best density separation solutions in a single stage method that can deliver consistently high recoveries for different microplastic polymers 1 mm and is suitable for tropical soils Methodology: Zinc chloride (ZnCl2), sucrose, sodium sulphate (Na2SO4), sodium carbonate (Na2CO3), and coconut oil were used to evaluate the selected microplastics (LDPE, HDPE, PVC, PS and PP) from post-consumer product. The recovered microplastics identified in terms of size and color via microscopy technique. Results: As anticipated, a general pattern of increased microplastic recovery with increasing solution density was found, with greater rates of microplastic recovery in ZnCl2, sucrose, and Na2CO3. The size and density of microplastics have been shown to affect the recovery rates and should be considered when selecting a density separation solution. Conclusion: The necessity for density separation recovery experiments to verify the use of density separation solutions for microplastic recovery is apparent from this research. This is the most comprehensive validation of density separation solutions for the density separation of microplastic from soils involving tropical soils. Keywords: microplastics, soils, ,density, separation, morphology

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Mr Hafizzuddin Hamidon
Date Deposited:	24 Aug 2023 04:42
Last Modified:	24 Aug 2023 04:42
URI:	http://psaspb.upm.edu.my/id/eprint/952

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