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Tackling New-generation Pollutants in Soil: How Modified Biochar Redefines Remediation Strategies?
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This study examined how modified biochar can simultaneously adsorb and catalytically degrade multiple emerging contaminants including microplastics, persistent organic pollutants, and antibiotics in soil systems. Effective soil remediation strategies are critical because agricultural microplastic accumulation contaminates crops and soil biota, creating ongoing food-chain exposure routes for humans.
As a new material for remediating emerging contaminants (ECs) such as persistent organic pollutants (POPs), endocrine-disrupting chemicals (EDCs), antibiotics, and microplastics (MNPs), modified biochar provides two main benefits: carbon storage/emission reduction and soil quality improvement. Nevertheless, bottlenecks for its large-scale application include low regeneration efficiency and unclear competitive adsorption mechanisms in multi-contaminant systems. This study examines the removal of four types of ECs through various biochar modifications. It demonstrates how adsorption-catalysis and microbial activation work in tandem. The study also identifies key influencing factors, including interference from soil organic matter, interfacial electron transfer kinetics, and pH dependence. Bridging laboratory-field efficacy gaps, we propose a three-stage optimisation pathway: (1) developing targeted modifications for complex matrices; (2) establishing in situ regeneration and cross-media risk monitoring systems; (3) advancing research on EC-modified biochar-microbe interactions. Finally, we stress the need to combine methods from environmental chemistry, soil ecology, and materials science. This will help develop affordable technologies and clean ecosystems on a large scale. These efforts provide both theoretical models and technical support for managing ECs.
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Removal of Emerging Contaminants Microplastics by Using Biochar Technology, a Review
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This review evaluated biochar technology as a method for removing microplastics from environmental matrices, assessing its adsorption capacity, mechanisms, and scalability as a remediation tool. Given that microplastics are toxic, persistent, and resistant to conventional treatment, biochar offers a promising low-cost intervention to reduce contamination in water and soil before particles enter the food chain.
Rsearch progress on biochar materials for new pollutants removal in the aquatic environment: a mini-review
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Researchers reviewed how biochar materials can remove emerging aquatic pollutants including antibiotics, endocrine-disrupting compounds, PFAS, and microplastics from water, summarizing adsorption mechanisms and influencing factors to provide a comprehensive framework for biochar-based multi-pollutant remediation strategies.
Biochar as a Potential Tool for Addressing Microplastic Pollution: A Review
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Researchers review biochar as a tool for adsorbing and immobilizing microplastics from environmental media, finding it significantly increases microplastic removal capacity, while cautioning that biochar can leach toxic compounds including PAHs and heavy metals, and calling for long-term studies and careful management before widespread application.
Navigating The Hidden Crisis: Microplastics And Heavy Metals in Soil- Transport, Impact, and Remediation
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Tiny plastic bits in soil don't just sit there, this review of existing research shows they can team up with toxic heavy metals already in the ground, making those metals up to 30-50% more likely to leach out and get absorbed by crops. That matters because it means the food grown in contaminated soil could carry more heavy metal contamination than previously thought, though scientists still need more real-world data to fully understand the risk to people who eat those crops.
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