Biochar as a sustainable product for remediation of petroleum contaminated soil

Zahed, Mohammad Ali; Salehi, Samira; Madadi, Rozita; Hejabi, Faranak

doi:10.1016/j.crgsc.2021.100055

Cited by 59 publications

(30 citation statements)

References 104 publications

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“…For plants under normal conditions, these figures were increased by 13.5% and 17.2%, respectively. Zahed et al reported that using biochar as a sustainable product can increase the remediation of petroleum hydrocarbon-contaminated soil [38]. This finding is in line with the results of our study.…”

Section: Resultssupporting

confidence: 93%

Effect of Drought Stress, Soil Salinity, P. indica, and MWCNs on Biodegradation of Diesel Oil in the Pb- and Cd-Polluted Soil Under Cultivation of Triticale Plant

Baghaie

2121

JAEHR

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Background: Today, soil pollution with heavy metals and petroleum compounds is one of the main environmental problems. This research was done to investigate the effect of drought stress, soil salinity, Piriformospora indica (P. indica), and MWCNs on biodegradation of diesel oil in the soil that contaminated with Pb and Cd under cultivation of triticale plant. Methods: Treatments consisted of applying MWCNs (2% [W/W]) in the Pb- and Cd-polluted soil that was simultaneously polluted with diesel oil (0, 5, and 10% [W/W]), and the plants used in this study were inoculated with P. indica. After 70 days, plants were harvested, and plant and soil Cd were measured using AAS (atomic absorption spectrometry). In addition, the degradation percentage of diesel oil in soil was determined. Results: Soil application of MWCNs at the rate of 2% (W/W) significantly increased the biodegradation of diesel oil in the soil in the drought and salinity (6 dS/m) stress by 11.3% and 15.6%, respectively. In addition, plant inoculation with P. indica significantly increased the biodegradation of diesel oil in the soil by 12.3%. For salinity (6 dS/m) and drought stress, it was increased by 8.3% and 9.4%, respectively. In addition, the Pb and Cd concentrations decreased by 14.3% and 12.8%, respectively, when the MWCNs were added to the soil (2% [W/W]). Conclusion: Soil application of MWCNs and plant inoculation with P. indica not only increased the biodegradation of diesel oil but also decreased the plant Pb and Cd concentrations.

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Section: Resultssupporting

confidence: 93%

Effect of Drought Stress, Soil Salinity, P. indica, and MWCNs on Biodegradation of Diesel Oil in the Pb- and Cd-Polluted Soil Under Cultivation of Triticale Plant

Baghaie

2121

JAEHR

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“…Biochar has displayed a good potential to remediation of petroleum hydrocarbons owed to its wide availability of the necessary feedstock, sustainable nature, high efficiency, large internal surface area and desirable physicochemical surface properties (Zahed et al, 2021). Using biochar can include carbon sequestration, improving soil fertility, reclamation, and processing of agricultural wasting.…”

Section: Discussionmentioning

confidence: 99%

Influence of the biochar on petroleum hydrocarbon degradation intensity and ecological condition of Haplic Chernozem

Minnikova¹,

Kolesnikov²,

Ruseva³

et al. 2022

Eurasian Journal of Soil Science (Ejss)

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Article InfoIt was evaluated the impact of biochar on the petroleum hydrocarbons degradation intensity and the ecological condition of Haplic Chernozem. The study was conducted in the model experiment conditions with Haplic Chernozem contaminated with 5% of petroleum hydrocarbons with application of 10 and 20% biochar. The number of soil bacteria, the activity of catalase and dehydrogenases, germination ability and radish root and shoot length, soil respiration considered to evaluate biological activity. It has been established that 10% biochar application led to intensification of petroleum hydrocarbons degradation up to 17% compare to contaminated soil. Upon adding 10% biochar the СО2 emission increased up to 70-85% on the 18-19th days, then reduced by the 28-30 th days till soil emission with the application of biochar in the amount of 20% from soil mass. Activity of dehydrogenases of Haplic Chernozem were stimulated after application of 10% biochar up to 49% compared to control. Biochar application in the doses of 10 and 20% increased the number of soil bacteria up to 209 and 203%, respectively. Application of 20% biochar intensified the germination and early growth of radish seeds. The germination ability, length of radish shoots and roots increased to 44, 66 and 44%, respectively, compare to control. The biochar application in petroleum contaminated soil increased the activity of catalase, dehydrogenases and the number of soil bacteria. Biochar using in doses 10% and 20% contributes to acceleration of petroleum hydrocarbons degradation and improvement of the soil ecological condition.

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“…At present, the remediation methods of petroleum-contaminated soil mainly include adsorption [ 8 ], incineration [ 9 ], chemical oxidation [ 10 ], leaching [ 11 ], phytoremediation [ 12 ], and the microbial remediation method [ 13 , 14 , 15 ]. Among them, the adsorption method is widely preferred because of its simple operation, low price, and relatively good adsorption effect [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Study on the Enhanced Remediation of Petroleum-Contaminated Soil by Biochar/g-C3N4 Composites

Lin

Yang

Shang

et al. 2022

IJERPH

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This work developed an environmentally-friendly soil remediation method based on BC and g-C3N4, and demonstrated the technical feasibility of remediating petroleum-contaminated soil with biochar/graphite carbon nitride (BC/g-C3N4). The synthesis of BC/g-C3N4 composites was used for the removal of TPH in soil via adsorption and photocatalysis. BC, g-C3N4, and BC/g-C3N4 have been characterized by scanning electron microscopy (SEM), Brunauer–Emmett–Teller surface area analyzer (BET), FT-IR, and X-ray diffraction (XRD). BC/g-C3N4 facilitates the degradation due to reducing recombination and better electron-hole pair separation. BC, g-C3N4, and BC/g-C3N4 were tested for their adsorption and photocatalytic degradation capacities. Excellent and promising results are brought out by an apparent synergism between adsorption and photocatalysis. The optimum doping ratio of 1:3 between BC and g-C3N4 was determined by single-factor experiments. The removal rate of total petroleum hydrocarbons (TPH) by BC/g-C3N4 reached 54.5% by adding BC/g-C3N4 at a dosing rate of 0.08 g/g in a neutral soil with 10% moisture content, which was 2.12 and 1.95 times of BC and g-C3N4, respectively. The removal process of TPH by BC/g-C3N4 conformed to the pseudo-second-order kinetic model. In addition, the removal rates of different petroleum components in soil were analyzed in terms of gas chromatography–mass spectrometry (GC-MS), and the removal rates of nC13-nC35 were above 90% with the contaminated soil treated by BC/g-C3N4. The radical scavenger experiments indicated that superoxide radical played the major role in the photocatalytic degradation of TPH. This work definitely demonstrates that the BC/g-C3N4 composites have great potential for application in the remediation of organic pollutant contaminated soil.

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Biochar as a sustainable product for remediation of petroleum contaminated soil

Cited by 59 publications

References 104 publications

Effect of Drought Stress, Soil Salinity, P. indica, and MWCNs on Biodegradation of Diesel Oil in the Pb- and Cd-Polluted Soil Under Cultivation of Triticale Plant

Effect of Drought Stress, Soil Salinity, P. indica, and MWCNs on Biodegradation of Diesel Oil in the Pb- and Cd-Polluted Soil Under Cultivation of Triticale Plant

Influence of the biochar on petroleum hydrocarbon degradation intensity and ecological condition of Haplic Chernozem

Study on the Enhanced Remediation of Petroleum-Contaminated Soil by Biochar/g-C3N4 Composites

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