Removal of environmental pollutants using biochar: current status and emerging opportunities

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(10)

Published: Aug. 21, 2024

Language: Английский

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Evaluation of potential adsorbents for simultaneous adsorption of phosphate and ammonium at low concentrations

Microporous and Mesoporous Materials, Journal Year: 2024, Volume and Issue: 379, P. 113301 - 113301

Published: Aug. 15, 2024

Language: Английский

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Production of Algae-Derived Biochar and Its Application in Pollutants Adsorption—A Mini Review

Separations, Journal Year: 2025, Volume and Issue: 12(2), P. 32 - 32

Published: Jan. 27, 2025

Developing algae cultivation for food, chemicals, and bio-energy generates a significant amount of algal waste/residue after utilization. Meanwhile, harmful blooms caused by abnormal proliferation various produce large biomass, posing serious harm to human health, the environment economy. Converting body biochar is crucial method with which take advantage this resource. Biochar usually has specific surface area, developed pore structure, high cation exchange capacity rich functional groups. With stable physical/chemical properties easy modification techniques, posited as an ideal adsorption material. From perspective biomass utilization, paper reviews preparation methods, structural characteristics, physicochemical environmental implications biochar. The effect mechanisms on nutrients, heavy metals, organic matter in water are introduced. In light current research status, challenges faced practical application algae-derived materials pointed out, direction also developed, view providing reference further utilization

Language: Английский

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Carbon-Based adsorbents for heavy metal removal in Wastewater: Green technology or environmental Burden?

Environmental Nanotechnology Monitoring & Management, Journal Year: 2025, Volume and Issue: unknown, P. 101051 - 101051

Published: Feb. 1, 2025

Language: Английский

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Performance and Mechanism of a Novel Composite Ecological Ditch System for Nitrogen and Phosphorus Interception in Agricultural Drainage

Water, Journal Year: 2025, Volume and Issue: 17(6), P. 882 - 882

Published: March 19, 2025

The massive loss of nitrogen (N) and phosphorus (P) from farmland ditches contributes to non-point source pollution, posing a significant global environmental challenge. Effectively removing these nutrients remains difficult in intensive agricultural systems. To address this, novel composite ecological ditch system (CEDS) was developed by modifying traditional drainage integrate grit chamber, zeolite, floating beds. Dynamic monitoring N P levels water, plants, zeolite conducted evaluate the system’s nutrient interception performance mechanisms. results showed following: (1) Water quality improved markedly after passing through CEDS, with concentrations decreasing progressively along flow path. intercepted 41.0% 31.9% P, inorganic particulate as primary forms loss. (2) Zeolite removes primarily ion exchange, likely chemical reactions, maximum capacities 3.47 g/kg for 1.83 P. (3) Ecological beds hydroponic cultivation enhanced uptake roots Canna indica Iris pseudacorus, surpassing (4) Nutrient efficiency positively correlated temperature, inlet concentrations, rice runoff but negatively precipitation. This study demonstrates CEDS’s potential improving water suggests further enhancements design management increase its economic aesthetic value.

Language: Английский

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Efficient removal of atrazine in wastewater by washed peanut shells biochar: Adsorption behavior and biodegradation

Process Biochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Study on the Adsorption Mechanism and Response Surface Optimization of Fluorine and Phosphorus by the Red Clay in Guizhou

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

The presence of fluorine and phosphorus in phosphogypsum leachate directly affects the local ecological environment groundwater quality. This paper examined adsorption characteristics by red clay near a landfill Guizhou Province, China, under different pH values, initial concentrations, soil dosages, particle sizes soil. Response surface methodology (RSM) was employed to optimize three factors (pH, concentration, dosage) selected Box-Behnken design that have great influence on single-factor adsorption. optimum condition for identified as = 3, concentration 91.08 mg/L, dosage 5.31 g, while 4.17, 99.49 5.82 g. Langmuir equation, quasi-secondary kinetic model, Elovich model were used fitting, which demonstrated good fitting. Finally, comparing characterization results scanning electron microscopy (SEM-EDX), X-ray diffraction (XRD), infrared spectroscopy (FTIR), process accompanied electrostatic addition chemical ligand exchange, result multiple effects. findings this study will provide reference prevention, control, management fluoro-phosphorus pollution dumps.

Language: Английский

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From Tradition to Innovation: The Evolution and Future Prospects of Phosphorus Removal Technologies in Wastewater Treatment

E3S Web of Conferences, Journal Year: 2025, Volume and Issue: 628, P. 01016 - 01016

Published: Jan. 1, 2025

Phosphorus removal from wastewater is a critical environmental issue due to its role in eutrophication and negative impacts on aquatic ecosystems. This paper systematically reviews the evolution prospects of phosphorus technologies, traditional methods innovative advancements. Traditional such as chemical precipitation biological treatment have demonstrated high efficiencies but suffer issues related sludge generation, operational costs, secondary pollution risks. Innovative including use modified biochar, electro-flocculation, micro electrolysis, shown significant improvements efficiency cost-effectiveness. The also examines emerging composite processes that integrate multiple maximize while minimizing drawbacks. Additionally, study highlights importance resource recovery circular economy approaches, alongside potential for intelligent automated management systems. review further international discharge standards identify global regulatory trends, thus providing practical guidance strategic insights policymakers practitioners implementing future-oriented solutions.

Language: Английский

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A Bibliometric Review of Chinese Traditional Defensive Settlement Heritage

Buildings, Journal Year: 2024, Volume and Issue: 14(10), P. 3107 - 3107

Published: Sept. 27, 2024

Unlike residential settlements, Chinese traditional defensive settlements (CTDS) are fortress-shaped built by forefathers to resist invasion and defend their homeland. What remains of these today not only unique entities but also spatial layouts architectural techniques that reflect military defense strategies patterns ancient society, resulting in a distinct cultural heritage. Using CiteSpace as research tool CNKI core database, this paper conducts visual analysis review the related CTDS, aiming accurately intuitively elaborate on literature distribution characteristics, collaborative key issues, trends, hotspots. We found CTDS focuses three issues: composition system mode northern style characteristics southern dwellings, settlements’ heritage conservation development planning; trends can be divided into phases. propose five future recommendations. This study helps fill gap bibliometric serves reference for priority directions, provides manual sustainable special type settlement.

Language: Английский

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Corn stover waste preparation cerium-modified biochar for phosphate removal from pig farm wastewater: adsorption performance and mechanism

Biochemical Engineering Journal, Journal Year: 2024, Volume and Issue: 212, P. 109530 - 109530

Published: Oct. 13, 2024

Language: Английский

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