Enhanced sorption of polycyclic aromatic hydrocarbons by soil amended with biochar

Chen, Baoliang; Yuan, Miaoxin

doi:10.1007/s11368-010-0266-7

Cited by 236 publications

(107 citation statements)

References 25 publications

(30 reference statements)

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“…Similarly, Bornemann et al [92] reported increases in the sorption of benzene and toluene onto red gum charcoal produced at higher temperature. This was also supported by Chen and Yuan [116] in pine needle biochar-amended soils spiked with naphthalene, phenanthrene or pyrene. More recently, Oleszczuk et al [117] reported that addition of either AC or biochar as an adsorbent can mitigate the mass transfer of contaminants from PAH-containing sewage sludge matrix into pore-water.…”

Section: Sorption Of Organic Contaminantssupporting

confidence: 59%

“…The increasing heat treatment on biochar feedstock reduces volatile matter, enhances the carbonisation, aromatic structure formation and surface area of the resultant biochar that is highly microporous [92,116,120]. Noticeably, biochar contains both carbonised (glassy) and non-carbonised (rubbery) fractions, where the former is categorised with non-linear competitive adsorption of organic contaminants and the latter is associated with linear non-competitive partitioning of organic contaminants [115,116,121].…”

Section: Sorption Of Organic Contaminantsmentioning

confidence: 99%

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Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

Ogbonnaya

Semple

2013

Agronomy

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Abstract:The presence of biochar in soils through natural processes (forest fires, bush burning) or through application to soil (agriculture, carbon storage, remediation, waste management) has received a significant amount of scientific and regulatory attention. Biochar alters soil properties, encourages microbial activity and enhances sorption of inorganic and organic compounds, but this strongly depends on the feedstock and production process of biochar. This review considers biochar sources, the production process and result of pyrolysis, interactions of biochar with soil, and associated biota. Furthermore, the paper focuses on the interactions between biochar and common anthropogenic organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), pesticides, and dioxins, which are often deposited in the soil environment. It then considers the feasibility of applying biochar in remediation technologies in addition to other perspective areas yet to be explored.

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Section: Sorption Of Organic Contaminantssupporting

confidence: 59%

Section: Sorption Of Organic Contaminantsmentioning

confidence: 99%

Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

Ogbonnaya

Semple

2013

Agronomy

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“…Biochar is more likely to adsorb organic contamination like persistent organic pollutants (POPs) as they have high affinity for biochar because it is naturally occurring [28]. Chen and Yuan in 2011 found out that by applying biochar to the soil contaminated with poly aromatic hydrocarbons (PAHs) can help the sorption of PAHs from the soil [29].…”

Section: Reduction Of Hazardous Materials Of Environmentmentioning

confidence: 99%

Benefits of Biochar on the Agriculture and Environment - A Review

Rehman¹,

Razzaq²

2017

J Environ Anal Chem

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“…Although the biochar iodine and methylene blue adsorption capacities were poorly correlated with their surface properties, biochar could be effectively used to remove organic pollutants from aqueous solutions. Many studies have reported that adsorption is a complex process determined by surface area, as well as the surface chemistry of the material (Guo et al 2003;Chen and Yuan 2011). Fig.…”

Section: Adsorption Capacitymentioning

confidence: 99%

Co-production of Biochar, Bio-oil, and Syngas from Tamarix chinensis Biomass under Three Different Pyrolysis Temperatures

Irfan¹,

Lin²,

Yue³

et al. 2016

BioResources

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a Pyrolysis of Tamarix chinensis feedstock was performed at 300, 500, and 700 °C to investigate the characteristics of biochar, bio-oil, and syngas. Biochar yield decreased and syngas yield increased as the pyrolysis temperature increased. The biochar was characterized for elemental composition, surface, and adsorption properties. Values of pH, electrical conductivity (EC), ash, C, K, Na, and basic functional group contents all increased as the pyrolysis temperature increased, whereas P, Ca, Mg, and acidic functional groups decreased. The methylene blue adsorption capacity values were 1.78, 2.08, and 1.96 (mg g -1 ) and iodine 256.48, 255.51 and 76.42 (mg g -1 ) for the biochars produced at 300, 500, and 700 °C, respectively. The C and H contents in bio-oil ranged from 66 to 62% and 8 to 7%, while O changed from 25 to 29% when temperature was increased from 300 to 700 °C. The concentration of hydrocarbon gases, such as ethane, ethylene, propane, and acetylene, increased as the pyrolysis temperature increased. The sum of CO and CO2 occupied great percentage of the total gas, while the H2 concentration increased markedly to a maximum of 16% at 500 °C. Thus, T. chinensis is a potential feedstock for biochar and bioenergy production.

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Enhanced sorption of polycyclic aromatic hydrocarbons by soil amended with biochar

Cited by 236 publications

References 25 publications

Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

Benefits of Biochar on the Agriculture and Environment - A Review

Co-production of Biochar, Bio-oil, and Syngas from Tamarix chinensis Biomass under Three Different Pyrolysis Temperatures

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