Biochar for the removal of contaminants from soil and water: a review

Biochar, Journal Year: 2022, Volume and Issue: 4(1)

Published: March 15, 2022

Abstract Biochar shows significant potential to serve as a globally applicable material remediate water and soil owing the extensive availability of feedstocks conducive physio-chemical surface characteristics. This review aims highlight biochar production technologies, characteristics biochar, latest advancements in immobilizing eliminating heavy metal ions organic pollutants water. Pyrolysis temperature, heat transfer rate, residence time, type feedstock are critical influential parameters. Biochar’s efficacy managing contaminants relies on pore size distribution, groups, ion-exchange capacity. The molecular composition physical architecture may be crucial when practically applied soil. In general, produced at relatively high pyrolysis temperatures can effectively manage via increasing area, hydrophobicity microporosity. generated lower is deemed more suitable for removing polar inorganic through oxygen-containing functional precipitation electrostatic attraction. also presents existing obstacles future research direction related biochar-based materials effluents Graphical

Language: Английский

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Recent advances in polysaccharide-based adsorbents for wastewater treatment

Journal of Cleaner Production, Journal Year: 2021, Volume and Issue: 315, P. 128221 - 128221

Published: July 4, 2021

Language: Английский

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Chitosan-modified biochar: Preparation, modifications, mechanisms and applications

International Journal of Biological Macromolecules, Journal Year: 2022, Volume and Issue: 209, P. 31 - 49

Published: April 5, 2022

Language: Английский

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Environmental and Wastewater Treatment Applications of Stimulus-Responsive Hydrogels

Gels, Journal Year: 2025, Volume and Issue: 11(1), P. 72 - 72

Published: Jan. 16, 2025

Stimulus-responsive hydrogels have emerged as versatile materials for environmental and wastewater treatment applications due to their ability adapt changing conditions. This review highlights recent advances in the design, synthesis, functionalization of such hydrogels, focusing on applications. Various synthesis techniques, including radical polymerization, grafting, copolymerization, enable development with tailored properties enhanced adsorption capacity, selectivity, reusability. The incorporation nanoparticles bio-based polymers further improves structural integrity pollutant removal efficiency. Key mechanisms adsorption, ion exchange, photodegradation are discussed, emphasizing roles removing heavy metals, dyes, organic pollutants from wastewater. Additionally, this presents potential oil-water separation, pathogen control, future sustainability through integration into circular economy frameworks. adaptability, cost-effectiveness, eco-friendliness these make them promising candidates large-scale remediation.

Language: Английский

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Perspectives of Engineered Biochar for Environmental Applications: A Review

Energy & Fuels, Journal Year: 2022, Volume and Issue: 36(15), P. 7940 - 7986

Published: July 18, 2022

Research on using biochar for environmental applications has witnessed unprecedented advances in the past decade. Biochar is universally considered one of best alternatives to store carbon fight global warming. Thus, sequential use remediation compatible with sequestration receiving growing attention. One reasons such huge interest possibility engineer targeted properties (e.g., surface area and chemistry) relevant existing issues. These can be achieved by selecting appropriate raw materials, processing conditions, carbonization technology, postproduction modification approaches. The objective this review summarize strategies enhance its services water purification, air/gas cleaning, construction soil amendments) corresponding results material these applications. main methods enhancing reviewed include activation (physical chemical), oxidation, metal oxide modification, metal-free heteroatom doping, biological modification. Both modified unmodified biochars have been used amendments as adsorbents pollutants aqueous phase removal P N, heavy metals, organic pollutants), gas biogas cleaning), a catalyst, an additive improving anaerobic digestion, admixture cementitious/construction promising all cases. New opportunities are being reported science production, advances.

Language: Английский

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Microbial investigations of new hydrogel-biochar composites as soil amendments for simultaneous nitrogen-use improvement and heavy metal immobilization

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 424, P. 127154 - 127154

Published: Sept. 9, 2021

Language: Английский

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Concurrent removal of phosphate and ammonium from wastewater for utilization using Mg-doped biochar/bentonite composite beads

Separation and Purification Technology, Journal Year: 2021, Volume and Issue: 285, P. 120399 - 120399

Published: Dec. 30, 2021

Language: Английский

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Preparation of CTS/PAMAM/SA/Ca2+ hydrogel and its adsorption performance for heavy metal ions

Applied Surface Science, Journal Year: 2022, Volume and Issue: 607, P. 155135 - 155135

Published: Oct. 1, 2022

Language: Английский

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Closing the circle for urban food waste anaerobic digestion: The use of digestate and biochar on plant growth in potting soil

Journal of Cleaner Production, Journal Year: 2022, Volume and Issue: 347, P. 131071 - 131071

Published: March 12, 2022

Language: Английский

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Polyacrylic acid-based drug delivery systems: A comprehensive review on the state-of-art

Journal of Drug Delivery Science and Technology, Journal Year: 2022, Volume and Issue: 78, P. 103988 - 103988

Published: Nov. 15, 2022

Language: Английский

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