Evaluation of quicklime mixing for the remediation of petroleum contaminated soils

Schifano, V.; MacLeod, C. L.; Hadlow, N.; Dudeney, Richard

doi:10.1016/j.jhazmat.2006.05.086

Cited by 31 publications

(16 citation statements)

References 11 publications

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“…Additionally, the pH values of the EMR slurry were almost constant after 20 min for CaO and NaOH respectively and the pH value stabilised at approximately 7 for CaO, although the pH value of the slurry with CaO was higher than with NaOH due to the slower release of hydroxyl anion from the hydrolysis of CaO. Seeing that CaO was applied widely in the restoration and remediation of polluted soils, where it promoted reactions such as flocculation, ion exchange, lime carbonisation and clay mineral dissolution between the polluted soil and its pore water [19] and the price of per ton of CaO was about one-fifth of NaOH, CaO was a preferable choice as the additive to precipitate manganese from the EMR by CO 2 . Figure 4 shows the ORP change of reaction process at 800 mL/min CO 2 flow rate with 5% CaO.…”

Section: Characterization Of Raw Emrmentioning

confidence: 99%

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Chen¹,

Liu²,

Qian³

et al. 2016

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnolog

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Abstract. This work reports the results of carbonate precipitation of soluble manganese by CO 2 with alkaline additives with the aim of eliminating the harm caused by electrolytic manganese residue (EMR). Results showed that CaO exhibited a better performance for the precipitation of manganese which was converted to rhodochrosite (MnCO 3 ) by infrared spectra and XRD analyses and that the precipitation rate of manganese reached 99.99% at 800 mL/min CO 2 flow rate and 5% CaO for 20 min reaction time. The leached concentration of manganese of the treated EMR was reduced to 0.2 mg/L and the leached concentrations of heavy metals of the treated EMR were less than the discharge standard of China (GB8978-1996). Another interesting finding was that the pH value and the ORP of the treated EMR slurry were about 7 and 320 mV respectively, which favoured landfill and reuse of EMR.

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Section: Characterization Of Raw Emrmentioning

confidence: 99%

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Chen¹,

Liu²,

Qian³

et al. 2016

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnolog

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“…(Donald et al, 2004). Moreover, it was reported that quicklime can be used as a restoration agent for heavy metals (Moon, 2005) and oil pollution (Schifano et al, 2007) in soil. In addition, quicklime can neutralise acidic soils (Mayfield et al, 2004) and increase soil enzymatic activity and soil nutrients (Li et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation of Different Types of Soil Conditioners with Respect to Their Ability to Remediate Consecutive Tobacco Monoculture Soil

ChuiHuai¹,

Jiang²,

FeiHu³

et al. 2015

IJAB

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Consecutive monoculture cropping of tobacco has led to a decline in tobacco yield and quality. In this study, quicklime (900 kg/hm 2 ), calcium cyanamide (375 kg/hm 2 ) and microbial agents (210 kg/hm 2 ) were applied to soil where tobacco was continuously planted for 6 years. The potential of these soil conditioners to eliminate problems associated with consecutive tobacco monoculture was evaluated using agronomic traits, tobacco yield and quality, microbial diversity of tobacco rhizospheric soil and soil enzymatic activity as indicators. The quicklime, calcium cyanamide and microbial agent treatments significantly improved tobacco yield and quality compared with the control (CK). The quicklime treatment yielded the best results. Traditional culture methods, which were used to examine tobacco rhizospheric microecology, showed that the quicklime treatment resulted in the most abundant microbial population followed by the calcium cyanamide treatment. Further analysis using the BIOLOG method indicated that the greatest tobacco rhizospheric microbial functional diversity was measured in the quicklime treatment, i.e., the diversity index was higher compared with the other treatments. Soil enzyme measurements indicated that the highest enzymatic activity of tobacco rhizospheric soil occurred in response to the quicklime treatment. The application of quicklime was conducive to improving and restoring the rhizospheric microecological environment and this treatment promoted tobacco growth, improved tobacco yield and quality and alleviated the problems associated with consecutive tobacco monoculture.

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“…Using quicklime to remove volatile organic compounds (VOCs) from soil was reported in previous studies (Matsumoto et al, 1995;Schifano et al, 2007). Matsumoto et al (1995) documented that up to 99.9% of the TCE in soil was removed by mixing quicklime by shovel with soil at 1e4% by weight every 5 h for 20 h. However, a low concentration of TCE (16 mg/kg) was used for their experiment and the detailed gas-phase compounds formed by the treatment were not examined.…”

Section: Introductionmentioning

confidence: 99%

“…Matsumoto et al (1995) documented that up to 99.9% of the TCE in soil was removed by mixing quicklime by shovel with soil at 1e4% by weight every 5 h for 20 h. However, a low concentration of TCE (16 mg/kg) was used for their experiment and the detailed gas-phase compounds formed by the treatment were not examined. Schifano et al (2007) examined the impact of quicklime mixing on petroleum contaminated soils using batch tests for 1, 15, and 30 days. They found petroleum hydrocarbon compounds decreased in the treated soils by analyzing the treated materials.…”

Section: Introductionmentioning

confidence: 99%

Removal of trichloroethylene from soil using the hydration of calcium oxide

Musson

Townsend

2011

Journal of Environmental Management

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Evaluation of quicklime mixing for the remediation of petroleum contaminated soils

Cited by 31 publications

References 11 publications

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

Comparative Evaluation of Different Types of Soil Conditioners with Respect to Their Ability to Remediate Consecutive Tobacco Monoculture Soil

Removal of trichloroethylene from soil using the hydration of calcium oxide

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