Microplastics toxicity, detection, and removal from water/wastewater

Area of Science:

• Environmental Science
• Materials Science
• Chemical Engineering

Background:

• Rising global plastic production has led to widespread microplastic (MP) pollution in aquatic environments.
• Inappropriate disposal of plastic waste exacerbates contamination by microplastics (MPs), defined as plastic particles <5 mm.
• Understanding the sources, transport, and toxicity of MPs is crucial for effective environmental management.

Purpose of the Study:

• To review and analyze recent advancements in microplastic removal technologies.
• To evaluate the strengths and weaknesses of various MP removal methods.
• To identify opportunities for innovation in the field of microplastic remediation.

Main Methods:

• Comprehensive literature review of existing and emerging microplastic removal technologies.
• Analysis of conventional methods, including modifications and new materials.
• Exploration of novel techniques such as magnetic extraction and sol-gel methods.

Main Results:

• Discussion of microplastic production, origins, and global distribution patterns.
• Overview of microplastic transport mechanisms, feedstock polymers, and associated toxicities.
• Detailed examination of conventional and advanced MP removal strategies with mechanistic insights.

Conclusions:

• Current microplastic removal technologies exhibit varied efficiencies and limitations.
• Emerging techniques like magnetic extraction and sol-gel offer promising avenues for MP remediation.
• Further research is needed to advance microplastic removal technologies for practical, large-scale application.