Degradation of naphthalene with magnetic bio-char activate hydrogen peroxide: Synergism of bio-char and Fe–Mn binary oxides

Ling, Li; Lai, Cui; Huang, Fanglong; Cheng, Min; Zeng, Guangming; Huang, Danlian; Li, Bisheng; Liu, Shiyu; Zhang, Mingming; Qin, Lei; Li, Minfang; He, Jiangfan; Zhang, Yujin; Chen, Liang

doi:10.1016/j.watres.2019.05.081

Cited by 369 publications

(68 citation statements)

References 47 publications

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“…In addition, magnetic biochar is also ideal for removing certain heavy metals and organic contaminants from different types of wastewater [72][73][74]. Recent studies also revealed that magnetic biochar was able to considerably boost catalytic activity by introducing reactive oxygen species via the activation of persulfate, peroxydisulfate, or hydrogen peroxide; as a result, the degradation of organic compounds in wastewater could be enhanced [75][76][77]. Magnetic biochar can be synthesized using a variety of techniques, including but not limited to:…”

Section: Physical Methodsmentioning

confidence: 99%

Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

Chan

Sharbatmaleki

et al. 2020

Water

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Biochar’s potential to remove various contaminants from aqueous solutions has been widely discussed. The rapid development of engineered biochar produced using different feedstock materials via various methods for wastewater treatment in recent years urges an up-to-date review on this topic. This article centers on summarizing state-of-the-art methods for engineered biochar production and discussing the multidimensional benefits of applying biochar for water reuse and soil amendment in a closed-loop agriculture system. Based on numerous recent articles (<5 years) published in journals indexed in the Web of Science, engineered biochar’s production methods, modification techniques, physicochemical properties, and performance in removing inorganic, organic, and emerging contaminants from wastewater are reviewed in this study. It is concluded that biochar-based technologies have great potential to be used for treating both point-source and diffuse-source wastewater in agricultural systems, thus decreasing water demand while improving crop yields. As biochar can be produced using crop residues and other biomass wastes, its on-farm production and subsequent applications in a closed-loop agriculture system will not only eliminate expensive transportation costs, but also create a circular flow of materials and energy that promotes additional environmental and economic benefits.

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Section: Physical Methodsmentioning

confidence: 99%

Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

Chan

Sharbatmaleki

et al. 2020

Water

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“…However, little information is available about the degradation of antibiotics, methylene blue dye, PAHs and other macromolecular organic pollutants by microorganism immobilized on biochar. Such organic pollutants are mainly degraded by chemical methods mediated by free radical oxidation through activating persulfate/H 2 O 2 or photocatalysis by biochar (Chen et al 2019e;Deng et al 2019a;Li et al 2019c;Liang et al 2019a). The generation of free radicals during chemical degradation of organic pollutants would cause ecotoxicological risk.…”

Section: Perspectivesmentioning

confidence: 99%

Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

Wang

et al. 2020

Biochar

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Biochar, derived from thermal pyrolysis of biomass, has been regarded as a low-cost, sustainable and beneficial material and widely applied in agriculture, environment and energy during the last two decades. To elucidate the research status timely and future trends in biochar field, CiteSpace is used to systematically analyze the related literature retrieved from the Web of Science core collection in 2019. Based on the keywords clustering analysis, it was found that "biochar production", "organic pollutants removal", "heavy metals immobilization", "bioremediation" were the main hotspots in research covering biochar. "Bioremediation" is an emerging topic and deserves extensive attention due to its highly effective and environmentally friendly treatment of pollutants. Improving the phytoremediation effect, immobilizing functional microorganisms on biochar, and using microorganisms as raw materials to produce biochar were the common methods of biochar-assisted bioremediation. While studies focused on "soil quality and plant growth" and "biochar and global climate change" decreased, investigations concentrated in the toxicity of biochar to soil biota and ruminants are sustainably growing. Research on direct and catalytic thermal pyrolysis of green waste (mainly microalgae) for biofuels (bio-oil, biodiesel, syngas, etc.) and biochar production is increasing. Converting municipal wastes (e.g., sewage sludge, fallen leaves) into biochar through pyrolysis was a suitable treatment for municipal waste and became a popular topic in recent time. Moreover, the biochar produced from these municipal wastes exhibited excellent performance in the removal of pollutants from wastewater and soil. This review may help to identify future directions in biochar research and applications.

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“…Polycyclic aromatic hydrocarbons (PAHs) are a class of diverse organic compounds containing two or more fused aromatic rings of carbon and hydrogen atoms, which can be easily adsorbed into soil due to their highly hydrophobic, stability and strong recalcitrant nature, and its toxicity, mutagenicity and carcinogenicity present a significant threat to human health 1 . PAHs with more than four rings are highly recalcitrant and resistant to microbial degradation 2 .…”

mentioning

confidence: 99%

Enzyme activities during Benzo[a]pyrene degradation by the fungus Lasiodiplodia theobromae isolated from a polluted soil

Cao

Wang

Liu

et al. 2020

Sci Rep

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degraded only 8% of BaP after 12 d of incubation. Thus, the isolation of a novel species that can efficiently use BaP as its sole carbon source is still impending. Recent studies have focused on the degradation of BaP by white-rot fungi 10,11. White rot fungi like Phanerochaete chrysosporium, Trametes versicolor, Cirnipellis stipitaria and Pleurotus ostreatus have the ability to efficiently degrade most PAHs as solely carbon source. Enzymatic mechanisms for PAH degradation by white-rot fungi have been widely discussed, and it has been recognized that white-rot fungi degrade PAHs by the synthesis of lignin modifying enzymes like lignin peroxidises (LiP), manganese peroxidases (MnP), laccases (LAC) and other oxidases 12. These enzymes usually catalyze the first attack on the PAHs molecule 2. It was reported that LiP and MnP can directly catalyze the one-electron oxidation of PAHs with an ionization potential (IP) of up to 7.55 eV to produce PAH quinones 13,14 , which can be further metabolized via ring fission 15. In addition, LAC can also catalyze the one-electron oxidation of PAHs, such as anthracene (ANT) and BaP. The efficiency of LAC is enhanced in the presence of mediators, such as 1-hydroxybenzotriabole (HBT) or 2, 2'-azinobis-3ethylbenzthiazoline-6-sulfonic acid (ABTS) 16. Except these well studied species, Hadibarata and Kristanti 10 recently noted that LAC and 1, 2-dioxygenase were produced by Polyporus sp. S133, a white-rot fungus isolated from an oil-contaminated soil, which might play an important role in the transformation of BaP. A novel fungus that can use BaP as sole carbon was isolated from a PAH contaminated soil sample in the Beijing Coking Plant in Beijing, China by our research group, which was identified as the Lasiodiplodia theobromae (L. theobromae) 17. This fungu belongs to the group of botryosphaeriaceous fungi, is a causal agent of storage rot in many fruits and tubers and is a serious pathogen for many agricultural and horticultural crops 18. Ligninolytic enzymes are responsible for the wood cankers that are caused by this group of fungi 19. The ability to secret ligninolytic enzymes is potentially essential for white rot fungi, which is a topic of interest in PAH degradation studies 20. Thus, it is important to assess the enzyme mechanisms that are involved in the degradation of BaP by the L. theobromae. The purpose of this study was to elucidate the enzymatic mechanisms of BaP degradation by the L. theobromae. To do so, BaP was used as the sole carbon and energy source for the L. theobromae and ligninolytic enzymes produced during the BaP biodegradation were assessed. Furthermore, the effects of several metabolic substrates, glucose, salicylic acid, phenanthrene (PHE), and the Tween-80 surfactant on BaP degradation by the L. theobromae and enzyme activities were discussed. Finally, to confirm the potential of the L. theobromae as an efficient BaP degrader, a comparative study of BaP degradation and enzymatic activities was conducted between the L. theobromae and a well-known PAH-degra...

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Degradation of naphthalene with magnetic bio-char activate hydrogen peroxide: Synergism of bio-char and Fe–Mn binary oxides

Cited by 369 publications

References 47 publications

Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

Engineered Biochar Production and Its Potential Benefits in a Closed-Loop Water-Reuse Agriculture System

Visualizing the emerging trends of biochar research and applications in 2019: a scientometric analysis and review

Enzyme activities during Benzo[a]pyrene degradation by the fungus Lasiodiplodia theobromae isolated from a polluted soil

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