Effect of biochar amendment on PAH dissipation and indigenous degradation bacteria in contaminated soil

Liu, Liang; Chen, Ping; Sun, Mingxing; Shen, Guoqing; Shang, Guofeng

doi:10.1007/s11368-014-1006-1

Cited by 59 publications

(16 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Devosia, Edaphobacter, Leifsonia, Massilia, Mucilaginibacter, Sinomonas, Sphingomonas and Stenotrophomonas in soil ( p < 0.05), whereas significantly reduced abundances of Exiguobacterium , Citrobacter , Pseudomonas, and Bradyhizobium ( p < 0.05). Arthrobacter, an gram-negative bacterium, was demonstrated to have the ability to degrade hydrocarbons and its’ higher relative abundance was detected in biochar [ 82 , 83 ] and alfalfa-amended soil [ 84 ]. Sphingobium was reported to increase in soil treated with biochar, and can degrade recalcitrant compounds [ 85 ].…”

Section: Resultsmentioning

confidence: 99%

Sludge Biochar Amendment and Alfalfa Revegetation Improve Soil Physicochemical Properties and Increase Diversity of Soil Microbes in Soils from a Rare Earth Element Mining Wasteland

Luo

Deng

Inubushi

et al. 2018

IJERPH

View full text Add to dashboard Cite

Long-term unregulated mining of ion-adsorption clays (IAC) in China has resulted in severe ecological destruction and created large areas of wasteland in dire need of rehabilitation. Soil amendment and revegetation are two important means of rehabilitation of IAC mining wasteland. In this study, we used sludge biochar prepared by pyrolysis of municipal sewage sludge as a soil ameliorant, selected alfalfa as a revegetation plant, and conducted pot trials in a climate-controlled chamber. We investigated the effects of alfalfa revegetation, sludge biochar amendment, and their combined amendment on soil physicochemical properties in soil from an IAC mining wasteland as well as the impact of sludge biochar on plant growth. At the same time, we also assessed the impacts of these amendments on the soil microbial community by means of the Illumina Miseq sequences method. Results showed that alfalfa revegetation and sludge biochar both improved soil physicochemical properties and microbial community structure. When alfalfa revegetation and sludge biochar amendment were combined, we detected additive effects on the improvement of soil physicochemical properties as well as increases in the richness and diversity of bacterial and fungal communities. Redundancy analyses suggested that alfalfa revegetation and sludge biochar amendment significantly affected soil microbial community structure. Critical environmental factors consisted of soil available K, pH, organic matter, carbon–nitrogen ratio, bulk density, and total porosity. Sludge biochar amendment significantly promoted the growth of alfalfa and changed its root morphology. Combining alfalfa the revegetation with sludge biochar amendment may serve to not only achieve the revegetation of IAC mining wasteland, but also address the challenge of municipal sludge disposal by making the waste profitable.

show abstract

Section: Resultsmentioning

confidence: 99%

Sludge Biochar Amendment and Alfalfa Revegetation Improve Soil Physicochemical Properties and Increase Diversity of Soil Microbes in Soils from a Rare Earth Element Mining Wasteland

Luo

Deng

Inubushi

et al. 2018

IJERPH

View full text Add to dashboard Cite

show abstract

“…Such carbonaceous materials have been observed to sorb PAHs up to 10-1000 times stronger (per unit mass) than other types of soil organic carbon (Accardi-Dey and Gschwend 2003, Cornelissen and Gustafsson 2004). When a strong sorbent, like biochar or AC, is introduced to a contaminated soil, the contaminants are transferred from the aqueous phase and weaker sorption (fastdesorption) sites of the contaminated soil to the strong sorption site of the added sorbent (Werner, Ghosh et al 2006, Rhodes, Carlin et al 2008, Cho, Werner et al 2012, Oleszczuk, Hale et al 2012, Liu, Chen et al 2015. As an example, the uptake of polychlorinated biphenyls in passive samplers decreased up to 73% with amendment of 3.7 % of AC after 5 years (Cho, Werner et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…These conflicting goals might be reconciled through the impregnation of sorbent amendments with PAH-degrading microorganisms (Wick, Springael et al 2001, Wick, De Munain et al 2002. Through such an approach the mass transfer of PAHs from contaminated soil to the degrading microbial community might be enhanced, and in addition there would be an enrichment of degrading bacteria and biofilm formation on the strong sorbing materials (Bastiaens, Springael et al 2000, Wick, Springael et al 2001, which could provide to stimulate the biodegradation of PAHs (Liu, Chen et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Enhanced biodegradation of PAHs in historically contaminated soil by M. gilvum inoculated biochar

et al. 2017

View full text Add to dashboard Cite

The inoculation of rice straw biochar with PAH-degrading Mycobacterium gilvum (1.27 × 10 ± 1.24 × 10 cell g), and the subsequent amendment of this composite material to PAHs contaminated (677 mg kg) coke plant soil, was conducted in order to investigate if would enhance PAHs biodegradation in soils. The microbe-biochar composite showed superior degradation capacity for phenanthrene, fluoranthene and pyrene. Phenanthrene loss in the microbe-biochar composite, free cell alone and biochar alone treatments was, respectively, 62.6 ± 3.2%, 47.3 ± 4.1% and non-significant (P > 0.05); whereas for fluoranthene loss it was 52.1 ± 2.3%; non-significant (P > 0.05) and non-significant (P > 0.05); and for pyrene loss it was 62.1 ± 0.9%; 19.7 ± 6.5% and 13.5 ± 2.8%. It was hypothesized that the improved remediation was underpinned by i) biochar enhanced mass transfer of PAHs from the soil to the carbonaceous biochar "sink", and ii) the subsequent degradation of the PAHs by the immobilized M. gilvum. To test this mechanism, a surfactant (Brij 30; 20 mg g soil), was added to impede PAHs mass transfer to biochar and sorption. The surfactant increased solution phase PAH concentrations and significantly (P < 0.05) reduced PAH degradation in the biochar immobilized M. gilvum treatments; indicating the enhanced degradation occurred between the immobilized M. gilvum and biochar sorbed PAHs.

show abstract

“…At lower PAH concentrations or when the economic and/or social pressure is not great, bioremediation is the preferred option [128][129][130][131][132][133][134][135][136][137]. This technique is much more environmental friendly but also slower and poorly effective, As an alternative to thermal desorption and landfilling, current research is investigating the improvement of promising technologies such as use of (bio)surfactant [138][139][140][141] or biochar [142][143][144] prior to bioremediation, phytoremediation [145][146][147][148][149] or in situ chemical oxidation [57,[150][151][152]. In situ chemical oxidation (ISCO) have been increasingly proposed over the past decade because it is more energy efficient than thermal desorption and faster and more effective on HMW PAHs than bioremediation and phytoremediation.…”

Section: Introductionmentioning

confidence: 99%

Selection of oxidant doses for in situ chemical oxidation of soils contaminated by polycyclic aromatic hydrocarbons (PAHs): A review

Ranc

Faure

Croze³

et al. 2016

Journal of Hazardous Materials

153

View full text Add to dashboard Cite

Effect of biochar amendment on PAH dissipation and indigenous degradation bacteria in contaminated soil

Cited by 59 publications

References 39 publications

Sludge Biochar Amendment and Alfalfa Revegetation Improve Soil Physicochemical Properties and Increase Diversity of Soil Microbes in Soils from a Rare Earth Element Mining Wasteland

Sludge Biochar Amendment and Alfalfa Revegetation Improve Soil Physicochemical Properties and Increase Diversity of Soil Microbes in Soils from a Rare Earth Element Mining Wasteland

Enhanced biodegradation of PAHs in historically contaminated soil by M. gilvum inoculated biochar

Selection of oxidant doses for in situ chemical oxidation of soils contaminated by polycyclic aromatic hydrocarbons (PAHs): A review

Contact Info

Product

Resources

About