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Research advances on production and application of algal biochar in environmental remediation
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This review examines how biochar made from algae can be used to clean up environmental pollution, including removing microplastics from water and improving contaminated soil. Algal biochar has shown promise for absorbing heavy metals, organic pollutants, and microplastics, and it can also improve soil health. While more large-scale and long-term studies are needed, algae-based biochar offers a potentially sustainable tool for reducing microplastic contamination in water and soil.
Algae, comprising microalgae and macroalgae, have emerged as a promising feedstock for the production of functional biochar. Recently, the application of algal biochar in environmental remediation gains increasing attention. This review summarizes research advancements in the synthesis and application of algal biochar, a versatile and sustainable material for environmental remediation ranging from wastewater treatment to soil improvement. Algal biochar can be prepared by pyrolysis, microwave-assisted pyrolysis, and hydrothermal carbonization. Physical and chemical modifications have proven to be effective for improving biochar properties. Algal biochar is promising for removing diverse pollutants including heavy metals, organic pollutants, and microplastics. The role in soil improvement signifies a sustainable approach to enhancing soil structure, nutrient retention, and microbial activity. Research gaps are identified based on current understanding, necessitating further exploration into variations in biochar characteristics, the performance improvement, large-scale applications, and the long-term evaluation for environmental application. This review provides a better understanding of algal biochar as a sustainable and effective tool in environmental remediation.
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This review examines how biochar, a charcoal-like material made from organic waste, can improve soil health and clean up pollutants including microplastics. Biochar's ability to absorb and trap contaminants makes it a promising tool for reducing microplastic pollution in agricultural soil. The findings suggest biochar could help limit the amount of microplastics that enter the food chain through crops grown in contaminated soil.
Sludge-derived biochar: Physicochemical characteristics for environmental remediation
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This review examines how sewage sludge can be converted into biochar, a carbon-rich material useful for cleaning up environmental contaminants including microplastics and heavy metals from water and soil. The process turns a waste product into an effective pollution filter while reducing the volume of sludge that needs disposal. This approach is relevant to microplastics research because biochar could help remove plastic particles from contaminated water and agricultural land.
Biochar-based adsorption technologies for microplastic remediation in aquatic ecosystems
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This review examines the use of biochar, a carbon-rich material made from organic waste, as a tool for removing microplastics from water. Biochar can effectively adsorb microplastic particles due to its porous structure and surface chemistry, and it can be produced cheaply from agricultural waste. The technology shows promise as an affordable and sustainable approach to reducing microplastic contamination in waterways, though challenges remain in scaling it up for real-world water treatment.
Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review
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This review evaluates the use of biochar made from aquatic biomass, such as algae and aquatic plants, for removing emerging pollutants like pharmaceuticals and microplastics from contaminated environments. Researchers found that aquatic biomass-derived biochar can be an effective and low-cost adsorbent for a variety of pollutants. The study highlights the dual benefit of managing aquatic waste while creating useful materials for environmental cleanup.
Biochar Application for Mitigation of Coastal and Marine Pollution
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Researchers investigated biochar as a technology for reducing microplastic contamination in coastal and marine environments, conducting experimental and computational modeling studies to assess the adsorption performance of biochar -- particularly algal waste-derived biochar -- in removing microplastics from wastewater discharge before it reaches marine ecosystems.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.