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Microplastic Removal from Wastewater Using Biochar Based Composite
Summary
This book chapter describes how biochar-based composites can be used as adsorbents for removing microplastics from wastewater, reviewing the mechanisms of plastic particle capture and the performance of biochar materials compared to conventional treatment approaches.
Microplastics (MPs) serve as carriers for toxins that leach into wastewater, including pesticides and heavy metals, leading to soil and water contamination. These toxins pose health risks, potentially causing pulmonary and skin diseases. Researchers are actively developing nanocomposites to remove MPs from soil and wastewater. Biochar-based composites, produced from burning agricultural or forest waste, show promise in adsorbing both toxins and MPs. Prepared with kaolinite or fly ash, these composites can create efficient membranes or resins. Passing wastewater through biochar-based composites achieves a high removal efficiency of 95%–100%, with factors like film thickness and retention time influencing effectiveness. These environmentally friendly composites offer a sustainable method for microplastic removal, contributing to greener waste management practices.