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61,005 resultsShowing papers similar to Evaluation of Efficient Pb Removal from Aqueous Solutions using Biochar Beads
ClearAdsorption of Lead from Aqueous Solution by Biochar: A Review
This review summarizes research on using biochar, a low-cost carbon material, to adsorb and remove lead from contaminated water. The study covers how different raw materials and modification methods affect biochar's adsorption capacity, along with the main mechanisms by which lead is removed from aqueous solutions.
Valorization of coconut husk into biochar for lead (Pb 2+ ) adsorption
Researchers produced biochar from coconut husk and tested its effectiveness at adsorbing lead (Pb²⁺) from water, finding it to be a promising low-cost, sustainable material for removing toxic heavy metals from contaminated water sources.
Pb(II) adsorption by biochar from co-pyrolysis of corn stalks and alkali-fused fly ash
Researchers created a modified biochar — a charcoal-like material made from plant waste — by combining corn stalks with fly ash during heating, and found it absorbed lead from water about 6% more effectively than standard biochar. The added binding sites from the fly ash modification make this a promising low-cost material for removing heavy metal pollution from contaminated water.
Spirulina platensis Immobilized Alginate Beads for Removal of Pb(II) from Aqueous Solutions
Researchers immobilized the blue-green microalga Spirulina platensis in alginate beads and tested its ability to remove lead (Pb(II)) from water, finding that the protein-rich biomass provided effective adsorption sites. The approach offers a bio-based, eco-friendly alternative to conventional heavy metal removal from aqueous solutions.
Functionalized Biochars for Enhanced Removal of Heavy Metals from Aqueous Solutions: Mechanism and Future Industrial Prospects
This review examined functionalized biochar materials as adsorbents for removing heavy metals from water, comparing surface modification strategies that enhance metal uptake capacity and selectivity. Functionalized biochars showed substantially improved adsorption performance over unmodified biochar and low-cost conventional materials.
Exploring the Adsorption of Pb on Microalgae-Derived Biochar: A Versatile Material for Environmental Remediation and Electroanalytical Applications
Researchers developed biochar from the marine microalga Nannochloropsis sp. at 350 degrees C and found it outperformed nutshell-derived biochar for adsorbing lead (II) ions in aqueous solution under all tested conditions including varying pH, ionic strength, and dissolved organic matter. The microalgae-derived biochar also improved voltammetric lead detection sensitivity by twofold when applied to screen-printed electrodes.
A correlation of the adsorption capacity of perovskite/biochar composite with the metal ion characteristics
Researchers created a composite material combining perovskite (a mineral-like crystal) and biochar (charred plant material) to remove toxic heavy metals — lead, cadmium, and copper — from water, achieving very high removal capacities of up to 606 mg per gram for lead. The material was highly selective, worked well in real wastewater, and could be regenerated and reused multiple times, offering promise for water purification applications.
Insights into catalytic removal and separation of attached metals from natural-aged microplastics by magnetic biochar activating oxidation process
A magnetic biochar material activated persulfate to degrade the organic layer on aged microplastics, releasing bound metals like lead and then re-adsorbing them from solution for magnetic separation. The approach demonstrates a combined oxidation and adsorption strategy for removing hazardous metals associated with microplastics in contaminated water.
Removal of Co-Occurring Microplastics and Metals in an Aqueous System by Pristine and Magnetised Larch Biochar
Researchers tested pristine and modified biochar for simultaneous removal of co-occurring microplastics and heavy metals from water, finding that biochar surface modifications improved adsorption of both contaminant classes, offering a promising dual-removal treatment strategy.
Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar
Researchers prepared cerium oxide-doped magnetic biochar from coconut coir and found it significantly outperformed undoped magnetic biochar for removing lead from contaminated wastewater, with the CeO2 reinforcement providing additional adsorption sites that improved heavy metal uptake.
Microplastic Removal from Wastewater Using Biochar Based Composite
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.
Advances in the Study of Heavy Metal Adsorption from Water and Soil by Modified Biochar
This review analyzes different methods for modifying biochar to improve its capacity to adsorb heavy metals from contaminated water and soil. Researchers examined how various modification techniques enhance biochar's adsorption performance for removing toxic metals from environmental substrates. The study provides a reference for practical applications of modified biochar in heavy metal remediation projects.
Conversion of the styrofoam waste into a high-capacity and recoverable adsorbent in the removing the toxic Pb(II) from water media
Researchers chemically modified waste styrofoam — a common plastic pollutant — into a magnetic adsorbent capable of removing toxic lead (Pb²⁺) ions from water, achieving around 90% removal efficiency. This work shows that plastic waste can be repurposed into useful water-treatment materials, offering a dual benefit of reducing plastic waste while cleaning heavy metal contamination.
Efficient removal of nanoplastics by iron-modified biochar: Understanding the removal mechanisms
Researchers created iron-modified biochar from green algae waste to remove nanoplastics from water. The modified biochar achieved a removal capacity three times higher than unmodified biochar, reaching up to 1,626 milligrams per gram, through a two-phase process of adsorption followed by aggregation. The study suggests this material could be recycled and reused at least three times, offering a practical approach to nanoplastic remediation.
Removal of microplastics and metals in biochar beds for stormwater treatment: Effects of prolonged drying and salinity on pollutant mobility
Researchers tested biochar — a charcoal-like material made from organic waste — as a filter for removing microplastics and heavy metals from stormwater runoff, finding it retained up to 99% of microplastics but that prolonged dry periods and high salinity increased the release of metals, highlighting real-world limitations of this promising treatment approach.
The Use of Biochar for Removal of Emerging Contaminants in Contaminated Water
This literature review examined 15 studies on biochar for removing emerging contaminants from water and effluents, finding that biochar made from waste raw materials is a low-cost, efficient, and scalable adsorbent for various pollutants. The review is relevant to microplastic research as biochar has potential as a treatment material for water contaminated with emerging contaminants co-occurring with microplastics.
Optimization and Thermodynamic Studies of Lead (II) and Cadmium (II) Ions Removal from Water Using Musa acuminate Pseudo-Stem Biochar
Researchers used biochar made from banana plant stems to remove lead and cadmium from contaminated water in Uganda, finding it effective at reducing these toxic heavy metals below safe drinking water limits.
A Recyclable Magnetic Biochar from Corn Cobs and Red Mud for Treating Complex Contaminants Containing Dyes and Heavy Metals
Researchers synthesized a recyclable magnetic multifunctional biochar (MMBC-400) from co-pyrolysis of corn cobs and red mud at 400°C and demonstrated its effectiveness for simultaneously removing malachite green dye and Pb2+ from complex wastewater, achieving high removal efficiency in both single and binary contaminant systems with magnetic recyclability.
Recent advances in biochar technology for aquatic pollution control: a critical review of applications, barriers, and future opportunities
Researchers reviewed two decades of research on biochar — a charcoal-like material made from organic waste — as a low-cost tool for removing pharmaceuticals, heavy metals, microplastics, and nutrients from water, achieving up to 80% pollutant removal. While promising, challenges in regeneration and scaling up production remain barriers to widespread use.
Scavenging microplastics and heavy metals from water using jujube waste-derived biochar in fixed-bed column trials
Researchers found that biochar derived from jujube waste effectively removed over 99% of nylon and polyethylene microplastics from water in fixed-bed column trials, while also demonstrating capacity for heavy metal removal at optimal neutral pH.
Magnetically Separable Humic Acid-Chitin Based Adsorbent as Pb(II) Uptake in Synthetic Wastewater
Researchers synthesized a magnetic humic acid-chitin composite material to adsorb lead (Pb) from synthetic wastewater, achieving high removal efficiency. Magnetically separable adsorbents are being developed for removing microplastics and associated heavy metals from contaminated water.
Clean water production from plastic and heavy metal contaminated waters using redox-sensitive iron nanoparticle-loaded biochar
Researchers developed a biochar material loaded with iron nanoparticles that can simultaneously remove nanoplastics and heavy metal ions from contaminated water. The material achieved over 90 percent removal across a range of water conditions and worked effectively in both batch and continuous-flow tests. The study presents a practical, low-cost approach for cleaning up water polluted with both plastic particles and toxic metals.
Innovative Strategies for Microplastic Mitigation in Wastewater
This book chapter proposes the use of biochar-based composite materials as innovative filter media for removing microplastics from wastewater, describing the adsorption mechanisms by which biochar captures plastic particles and the potential to integrate this approach into existing treatment infrastructure.
AI-guided investigation of biochar’s efficacy in Pb immobilization for remediation of Pb contaminated agricultural land
Researchers evaluated ten types of biochar made from different biomass feedstocks for their ability to immobilize lead in contaminated agricultural soil. They used a machine learning approach to predict long-term immobilization effects and found that oilseed rape straw biochar pyrolyzed at 700 degrees was most effective. The study also accounted for simulated microplastic contamination during long-term incubation, providing a novel framework for predicting biochar performance in real-world remediation scenarios.