Cited by 73Advanced oxidation water treatmentPesticide and Herbicide Environmental StudiesAdsorption and biosorption for pollutant removal

Catalytic degradation of the soil fumigant 1,3-dichloropropene in aqueous biochar slurry

Qin, Jiaolong, Cheng, Yuxiao, Sun, Mingxing, Yan, Lili, Shen, Guoqing·2016·Science of The Total Environment

Abstract

Biochar has been explored as a cost-effective sorbent of contaminants, such as soil fumigant. However, contaminant-loaded biochar probably becomes a source of secondary air pollution. In this study, biochars developed from cow manure and rice husk at 300°C or 700°C were used to investigate the catalytic degradation of the soil fumigant 1,3-dichloropropene (1,3-D) in aqueous biochar slurry. Results showed that the adsorption of 1,3-D on the biochars was influenced by Langmuir surface monolayer adsorption. The maximum adsorption capacity of cow manure was greater than that of rice husk at the same pyrolysis temperature. Batch experiments revealed that 1,3-D degradation was improved in aqueous biochar slurry. The most rapid 1,3-D degradation occurred on cow manure-derived biochar produced at 300°C (C-300), with t1/2=3.47days. The degradation efficiency of 1,3-D on C-300 was 95.52%. Environmentally persistent free radicals (EPFRs) in biochars were detected via electron paramagnetic resonance (EPR) techniques. Dissolved organic matter (DOM) and hydroxyl radical (·OH) in biochars were detected by using a fluorescence spectrophotometer coupled with a terephthalic acid trapping method. The improvement of 1,3-D degradation efficiency may be attributed to EPFRs and DOM in aqueous biochar slurry. Our results may pose implications in the development of effective reduction strategies for soil fumigant emission with biochar.

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Crossref · 10.1016/j.scitotenv.2016.06.092

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  • The interaction of biochars with 1,3-dichloropropene might be ascribed to EPFRs decorated inside biochar slurry (biochar surface or released DOM).

    “This phenomenon might be ascribed to the EPFRs decorated inside biochar slurry (biochar surface or released DOM).95,129”
  • Biochars developed from cow manure and rice husk at 300 or 700 °C directly interact with 1,3-dichloropropene, reaching a slow reaction constant of kobs = 0.35-1.47×10^-4 min^-1 but effective removal efficiencies (55-95.5%).

    “Biochars developed from cow manure and rice husk at 300 or 700 °C were also reported to directly interact with 1, 3-dichloropropene, and reached slow reaction constant of kobs = 0.35-1.47× 10 -4 min -1 but effective removal efficiencies (55-95.5 %).”

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Authors
Qin, J., Cheng, Y., Sun, M., Yan, L., & Shen, G.
Affiliations
  • Shanghai Jiao Tong University (CN)
  • Shanghai Entry-Exit Inspection and Quarantine Bureau (CN)
Corresponding author
Shen, Guoqing
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2016-11
Volume
569-570
Pages
1-8
ISSN
0048-9697 (ISSN-L)
OpenAlex
W2433011258
Cited by
73
References
49
Citations by year
2026: 4 · 2025: 9 · 2024: 5 · 2023: 8 · 2022: 10 · 2021: 10 · 2020: 6 · 2019: 11 · 2018: 5 · 2017: 5
FWCI
4.15
Type
journal article
Language
en
Open access
closed
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (NSFC 21477075)
  • Shanghai Agricultural Commission (2015-4-1)
  • Shanghai Pudong New Area Foundation for Development of Science and Technology (PKJ 2015-N06)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Environmental Science › Pollution › Pesticide and Herbicide Environmental Studies
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
1,3-dichloropropene, soil fumigants, biochar, catalytic degradation, rice husk biochar, pyrolysis temperature, adsorption, Langmuir isotherm, dissolved organic matter, hydroxyl radicals
MeSH terms
Adsorption, Allyl Compounds, Animals, Catalysis, Cattle, Charcoal, Fumigation, Hot Temperature, Hydrocarbons, Chlorinated, Manure, Oryza, Soil Pollutants

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