Adsorption–desorption behavior of carbendazim by sewage sludge-derived biochar and its possible mechanism

Ding, Tengda; Huang, Tuo; Wu, Zhenhua; Wen, Li; Guo, Kexin; Li, Juying

doi:10.1039/c9ra07263b

Cited by 19 publications

(16 citation statements)

References 48 publications

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“…Thus, the formation of aromatic compounds and an enhanced degree of aromatization in biochars produced at higher pyrolytic temperature could possess a higher sorption capacity, which was also consistent with the higher dissipation of carbendazim in soil amended with BC 700. In addition, BC 700 have a stronger sorption capacity on carbendazim than BC 300 and BC 500 in soil . Moreover, the sorption of carbendazim on BC 700 was irreversible but the sorption behaviors on BC 300 and BC 500 were reversible, indicating that the higher dissipation of carbendazim in BC 700-amended soil may also be caused by the chemical degradation.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, BC 700 have a stronger sorption capacity on carbendazim than BC 300 and BC 500 in soil. 37 Moreover, the sorption of carbendazim on BC 700 was irreversible but the sorption behaviors on BC 300 and BC 500 were reversible, 37 indicating that the higher dissipation of carbendazim in BC 700-amended soil may also be caused by the chemical degradation. Similar results were also found by Zhang et al that the biochar produced at 700 °C could inhibit the biodegradation of thiacloprid in soil but promote chemical degradation through increasing pH, active groups, and generation of free radicals.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Degradation of Carbendazim in Soil: Effect of Sewage Sludge-Derived Biochars

Huang

Ding

Liu³

et al. 2020

J. Agric. Food Chem.

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Application of biochar in soils can affect the soil properties and, in turn, the fate of pesticides. Batch experiments were conducted to investigate the effect of sewage sludge-derived biochars on the dissipation of a fungicide carbendazim in soil, and the transformation of carbendazim in soil was also studied. Results showed that the dissipation of carbendazim was fastest in a loamy soil SD with a half-life of 11.0 d among the three kinds of soils tested in this study. A dual effect (both acceleration and inhibition) of sewage sludge-derived biochars on carbendazim degradation in soil was reported. The addition of 10% biochars produced at 700 °C (BC 700) in soil could accelerate the carbendazim degradation, but an inhibitory effect was observed for 10% BC 300 or BC 500. Degradation of carbendazim was significantly inhibited when 0.5 or 5% BC 700 was added in soil but accelerated when the amendment ratio of BC 700 was increased to 10%. Such complex effects of the sewage sludge biochar should be taken into consideration in risk assessment of pesticides and the biochar effects on soil remediation. Eight metabolites of carbendazim were characterized, seven of which were reported in unamended soil for the first time. The metabolic pathways of carbendazim in soil are proposed.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Degradation of Carbendazim in Soil: Effect of Sewage Sludge-Derived Biochars

Huang

Ding

Liu³

et al. 2020

J. Agric. Food Chem.

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“…The increase of soils contaminated by pesticides is another global environmental issue and different biochars were used in various studies as a solution to reduce the negative effect of contamination. For instance, it was reported that the addition of biochars could be used to reduce the bioavailability and mobility of atrazine through adsorption-desorption processes which are mainly depending on soil properties (Zhao et al 2013;Mandal et al 2017;Cusioli et al 2019;Ding et al 2019). Indeed, Tao et al (2019) highlighted the influence of soil physical and chemical characteristics, especially pH, CEC, and OM on the adsorption-desorption behavior of pesticides.…”

Section: Biochar As Soil Remediation Methodsmentioning

confidence: 99%

Biochar in temperate soils: opportunities and challenges

2022

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Biochar, a carbon-rich material produced by the pyrolysis of organic residues, is frequently used as a soil amendment to enhance soil fertility and improve soil properties in tropical climates. However, in temperate agriculture, the impact of biochar on soil and plant productivity remains uncertain. The objective of this review is to give an overview of the challenges and opportunities of using biochar as an amendment in temperate soils. Among the various challenges, the type of feedstock and the conditions during pyrolysis produces biochars with different chemical and physical properties, resulting in contrasting effects on soils and crops. Furthermore, biochar aging, biochar application rates and its co-application with mineral fertilizer and/or organic amendments add further complexity to our understanding of the soil-amendment-plant continuum. Although its benefits on crop yield are not yet well demonstrated under field studies, other agronomic benefits of biochar in temperate agriculture have been documented. In this review, we proposed a broader view of biochar as a temperate soil amendment, moving beyond our current focus on crop productivity, and instead target its capacity to improve soil properties. We explored biochar’s benefits in remediating low productive agricultural lands, and its environmental benefits through long-term carbon sequestration and reduced nutrient leaching while curtailing our reliance on fertilizer input. We also discussed the persistence of beneficial impacts of biochar in temperate field conditions. We concluded biochar displays great prospective to improve soil health and its productivity, enhance plant stress resilience, mitigate greenhouse gas emissions and restore degraded soils in temperate agriculture.

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“…In the EU, around 13.0 million tons of sewage sludge (in dry matter) are produced annually [4]. The amount of sludge produced has increased enormously with the development of industrialization and urbanization [5,6], and it is considered to be a highly alarming wastewater treatment problem. Different methods have been selected for the removal of sewage sludge, such as disposal in landfills, incineration, and application in agriculture as a fertilizer; but each of these options causes problems of secondary pollution [7,8].…”

Section: Introductionmentioning

confidence: 99%

Application of Sludge-Based Activated Carbons for the Effective Adsorption of Neonicotinoid Pesticides

et al. 2021

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The amount of sludge produced in wastewater treatment plants (WWTPs) has increased over the years, and the methods used to reduce this waste, such as incineration, agricultural use, or disposal in landfills, cause problems of secondary pollution. For this reason, it is necessary to find sustainable and low-cost solutions to manage this waste. Additionally, emerging and priority pollutants are attracting attention from the scientific community as they can generate health problems due to inadequate removal in conventional WWTPs. In this work, a pharmaceutical industry sludge was used as a precursor in the synthesis of four activated carbons (ACs) using different activating agents (ZnCl2, FeCl3∙6H2O, Fe(NO3)3∙9H2O, and Fe(SO4)3∙H2O), to be used for the removal by adsorption of three neonicotinoid pesticides included in latest EU Watch List (Decision 2018/840): acetamiprid (ACT), thiamethoxam (THM), and imidacloprid (IMD). The prepared ACs showed micro–mesoporous properties, obtaining relatively slow adsorption kinetics to reach equilibrium, but despite this, high values of adsorption capacity (qe) were obtained. For example, for AC-ZnCl2 (SBET = 558 m2/g), high adsorption capacities of qe = 128.9, 126.8, and 166.1 mg/g for ACT, THM, and IMD, respectively, were found. In most cases, the adsorption isotherms showed a multilayer profile, indicating an important contribution of the mesoporosity of the activated carbons in the adsorption process.

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Adsorption–desorption behavior of carbendazim by sewage sludge-derived biochar and its possible mechanism

Abstract: Biochar application in agricultural soil for environmental remediation has received increasing attention, however, few studies are focused on sewage sludge based biochar.

Cited by 19 publications

References 48 publications

Degradation of Carbendazim in Soil: Effect of Sewage Sludge-Derived Biochars

Degradation of Carbendazim in Soil: Effect of Sewage Sludge-Derived Biochars

Biochar in temperate soils: opportunities and challenges

Application of Sludge-Based Activated Carbons for the Effective Adsorption of Neonicotinoid Pesticides

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