Production of biochar from rice straw and its application for wastewater remediation − An overview

Bioresource Technology, Journal Year: 2022, Volume and Issue: 360, P. 127588 - 127588

Published: July 6, 2022

Language: Английский

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Applications of vacancy defect engineering in persulfate activation: Performance and internal mechanism

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 449, P. 130971 - 130971

Published: Feb. 10, 2023

Language: Английский

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Surface Modification of Biochar for Dye Removal from Wastewater

Catalysts, Journal Year: 2022, Volume and Issue: 12(8), P. 817 - 817

Published: July 26, 2022

Nowadays, biochar is being studied to a great degree because of its potential for carbon sequestration, soil improvement, climate change mitigation, catalysis, wastewater treatment, energy storage, and waste management. The present review emphasizes on the utilization biochar-based nanocomposites play key role in decontaminating dyes from wastewater. Numerous trials are underway synthesize functionalized, surface engineered that can sufficiently remove dye-contaminated removal via natural modified follows numerous mechanisms such as precipitation, complexation, ion exchange, cation–π interactions, electrostatic attraction. Further, production modification promote good adsorption capacity dye owing properties tailored stage linked with specific hydrophobic interactions. Meanwhile, framework artificial neural networking machine learning model efficiency proposed even though studies still their infancy stage. article recommends smart technologies modelling forecasting should be included proper applications.

Language: Английский

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Biochar application for remediation of organic toxic pollutants in contaminated soils; An update

Ecotoxicology and Environmental Safety, Journal Year: 2022, Volume and Issue: 248, P. 114322 - 114322

Published: Nov. 29, 2022

Bioremediation of organic contaminants has become a major environmental concern in the last few years, due to its bio-resistance and potential accumulate environment. The use diverse technologies, involving chemical physical principles, passive uptake utilizing sorption using ecofriendly substrates have drawn lot interest. Biochar got attention mainly simplicity manufacturing, treatment, disposal, as it is less expensive more efficient material, for remediation contaminants. This review highlighted adverse impact persistent pollutants on environment soil biota. utilization biochar remediate contaminated compounds i.e., pesticides, polycyclic aromatic hydrocarbons, antibiotics, dyes also been discussed. application significant biodegradation, leaching, sorption/desorption influenced by composition structure, porosity, surface area, pH, elemental ratios, functional groups biochar. All above characteristics depend type feedstock pyrolysis conditions. However, concentration nature significantly alters capability Therefore, physicochemical properties soils/wastewater, contaminants, should be evaluated before wastewater. Future initiatives, however, are needed develop biochars with better adsorption capacity, long-term sustainability xenobiotic/organic contaminant strategy.

Language: Английский

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Application of functionalized biochar for adsorption of organic pollutants from environmental media: Synthesis strategies, removal mechanisms and outlook

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 423, P. 138690 - 138690

Published: Sept. 7, 2023

Language: Английский

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Adsorption and photocatalytic degradation of quinolone antibiotics from wastewater using functionalized biochar

Environmental Pollution, Journal Year: 2023, Volume and Issue: 336, P. 122409 - 122409

Published: Aug. 17, 2023

Language: Английский

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Biochar as a Green Sorbent for Remediation of Polluted Soils and Associated Toxicity Risks: A Critical Review

Separations, Journal Year: 2023, Volume and Issue: 10(3), P. 197 - 197

Published: March 13, 2023

Soil contamination with organic contaminants and various heavy metals has become a global environmental concern. Biochar application for the remediation of polluted soils may render novel solution to soil issues. However, complexity decontaminating mechanisms real environment significantly influences preparation large-scale biochar ramification. This review paper highlights utilization in immobilizing eliminating pollutants from contaminated factors affecting efficacy biochar. Furthermore, risks related unpolluted agricultural are also debated. production conditions (pyrolysis temperature, feedstock type, residence time) rate greatly influence performance remediating soils. Biochars prepared at high temperatures (800 °C) contained more porosity specific surface area, thus offering adsorption potential. The redox electrostatic contributed oxyanions, whereas ion exchange, complexation, precipitation were mainly involved cations. Volatile compounds (VOCs), dioxins, polycyclic aromatic hydrocarbons (PAHs) produced during pyrolysis induce negative impacts on alga, microbes, plants. A careful selection its compatibility carbonization technology having suitable operating is essential avoid these impurities. It would help prepare desired features target particular pollutant site. provided explicit knowledge developing cost-effective, environment-friendly biochar, which could be used decontaminate targeted large scale. future study directions described ensure sustainable safe as improver reclamation

Language: Английский

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Mechanisms of adsorption and functionalization of biochar for pesticides: A review

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 272, P. 116019 - 116019

Published: Jan. 30, 2024

Agricultural production relies heavily on pesticides. However, factors like inefficient application, pesticide resistance, and environmental conditions reduce their effective utilization in agriculture. Subsequently, pesticides transfer into the soil, adversely affecting its physicochemical properties, microbial populations, enzyme activities. Different interacting can lead to combined toxicity, posing risks non-target organisms, biodiversity, organism-environment interactions. Pesticide exposure may cause both acute chronic effects human health. Biochar, with high specific surface area porosity, offers numerous adsorption sites. Its stability, eco-friendliness, superior capabilities render it an excellent choice. As a versatile material, biochar finds use agriculture, management, industry, energy, medicine. Added helps absorb or degrade contaminated areas, enhancing soil activity. Current research primarily focuses produced via direct pyrolysis for adsorption. Studies functionalized this purpose are relatively scarce. This review examines biochar's absorption characteristics, formation mechanisms, impact, delves functionalization methods, prospects limitations.

Language: Английский

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Biochar-based nanocomposites for industrial wastewater treatment via adsorption and photocatalytic degradation and the parameters affecting these processes

Biomass Conversion and Biorefinery, Journal Year: 2023, Volume and Issue: 14(19), P. 23293 - 23318

Published: July 4, 2023

Abstract The preparation of biochar (BC) as a useful substance generated from biomass valorization via pyrolysis has attracted much attention in recent years. Moreover, widespread worries about water pollution and the issues brought on by producing releasing massive volumes industrial effluents have sparked research initiatives to examine practical affordable solutions these problems. Dyes, heavy metals, pharmaceutical compounds are main hazardous pollutants wastewater. As result, (BC)/biochar (BC)-based nanocomposites been presented potential alternative handle wastewater with both adsorption photocatalytic degradation processes. Such nanocomposite materials benefit synergistic effect photocatalysis attain improved removal Therefore, this review aims describe different methods for biochar-based nanocomposites. Furthermore, differences between processes discussed. BC-based emerged promising adsorbents photocatalysts treatment applications. To maximize efficiency processes, an overview parameters affecting is reviewed, where dose, initial pollutant concentration, pH, temperature, time, presence anions, recycling discovered significant impact their performance. Finally, future recommendations directions provided help shape applications This offers comprehensive evaluation use new environmental material capable removing Graphical

Language: Английский

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Synthesis of novel magnetic activated carbon for effective Cr(VI) removal via synergistic adsorption and chemical reduction

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 30, P. 103092 - 103092

Published: March 2, 2023

The removal of a toxic contaminant like Cr(VI) from the water via green adsorbents biochar and activated carbon is an eco-friendly technique. In this paper, using commercial as raw material, magnetic ferric oxide/activated (Fe3O4@AC) was prepared by chemical co-precipitation method, adsorption in applied. synthesized materials were characterized advanced characterization techniques including XRD, BET, FT-IR, XPS. effects initial concentration, temperature, time on effect evaluated. Results illustrated that maximum achieved Fe3O4@AC 45.3 mg/g, with rate 88.8% at optimum pH 2.0 12 h. Under these conditions, fits pseudo-second-order kinetic model (PSO) Langmuir isotherm spontaneous, endothermic, irreversible process. results XPS analysis before after suggested mechanism mainly based chemisorption, supplemented physical adsorption, accompanied electrostatic attraction complexation.

Language: Английский

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