Phytoremediation of Soil Contaminated with Used Lubricant Oil Using Spathiphyllum spp.

2017 ◽  
Vol 866 ◽  
pp. 136-139
Author(s):  
Varinthorn Boonyaroj ◽  
Nipawan Kaewsrijan ◽  
Nanthanit Sangkhamnaruepon
Keyword(s):  
Ph Value ◽  
Solid Phase ◽  
Lubricating Oil ◽  
Treated Soil ◽  
Lubricant Oil ◽  
Time Operation ◽  
Working Volume ◽  
Benzene Toluene ◽  
Used Lubricating Oil ◽  
Used Lubricant Oil

Soil contamination with used lubricating oil from automobiles is a growing concern in many countries, especially in Asian. This research was conducted on a laboratory scale. The plant used in this research was Spathiphyllum spp. in comparison with controlled (no-plant). The size of reactor used in this research was set at 20 cm width, 20 cm length, and 40 cm height with working volume of the reactor was 0.016 cm3. Moreover, a pH value was controlled in a range of 7 to 8. The soil contaminated with used lubricant oil collected from automobile shop in Nonthaburi province. Soil contaminated and treated soil were extracted by solid-phase extraction (SPE) and analyzed by gas chromatography with mass spectrometer (GC–MS). The results showed that Spathiphyllum spp. could be growth during time operation. Spathiphyllum spp. has a potential in reclaiming hydrocarbon-contaminated soil such as Benzene, Toluene, Ethylbenzene, and Xylene (BTEX) approximately 20 to 60 days operation.

scholarly journals Separation of Radionuclides from a Rare Earth-Containing Solution by Zeolite Adsorption

Minerals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 20
Author(s):  
Deniz Talan ◽  
Qingqing Huang
Keyword(s):  
Rare Earth ◽  
Rare Earths ◽  
Contact Time ◽  
Separation Efficiency ◽  
Ph Value ◽  
Solid Phase ◽  
Separation Performance ◽  
Solution Ph ◽  
Zeolite Sample ◽  
Alternative Sources

The increasing industrial demand for rare earths requires new or alternative sources to be found. Within this context, there have been studies validating the technical feasibility of coal and coal byproducts as alternative sources for rare earth elements. Nonetheless, radioactive materials, such as thorium and uranium, are frequently seen in the rare earths’ mineralization, and causes environmental and health concerns. Consequently, there exists an urgent need to remove these radionuclides in order to produce high purity rare earths to diversify the supply chain, as well as maintain an environmentally-favorable extraction process for the surroundings. In this study, an experimental design was generated to examine the effect of zeolite particle size, feed solution pH, zeolite amount, and contact time of solid and aqueous phases on the removal of thorium and uranium from the solution. The best separation performance was achieved using 2.50 g of 12-µm zeolite sample at a pH value of 3 with a contact time of 2 h. Under these conditions, the adsorption recovery of rare earths, thorium, and uranium into the solid phase was found to be 20.43 wt%, 99.20 wt%, and 89.60 wt%, respectively. The Freundlich adsorption isotherm was determined to be the best-fit model, and the adsorption mechanism of rare earths and thorium was identified as multilayer physisorption. Further, the separation efficiency was assessed using the response surface methodology based on the development of a statistically significant model.

scholarly journals Biodegradation of Used Motor Oil in Soil Using Organic Waste Amendments

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
O. P. Abioye ◽  
P. Agamuthu ◽  
A. R. Abdul Aziz
Keyword(s):  
Contaminated Soil ◽  
Oil Pollution ◽  
Green Technology ◽  
Lubricating Oil ◽  
Soil Bioremediation ◽  
Order Kinetic ◽  
Human Beings ◽  
Mushroom Compost ◽  
Oil Biodegradation ◽  
Used Lubricating Oil

Soil and surface water contamination by used lubricating oil is a common occurrence in most developing countries. This has been shown to have harmful effects on the environment and human beings at large. Bioremediation can be an alternative green technology for remediation of such hydrocarbon-contaminated soil. Bioremediation of soil contaminated with 5% and 15% (w/w) used lubricating oil and amended with 10% brewery spent grain (BSG), banana skin (BS), and spent mushroom compost (SMC) was studied for a period of 84 days, under laboratory condition. At the end of 84 days, the highest percentage of oil biodegradation (92%) was recorded in soil contaminated with 5% used lubricating oil and amended with BSG, while only 55% of oil biodegradation was recorded in soil contaminated with 15% used lubricating oil and amended with BSG. Results of first-order kinetic model to determine the rate of biodegradation of used lubricating oil revealed that soil amended with BSG recorded the highest rate of oil biodegradation (0.4361 day−1) in 5% oil pollution, while BS amended soil recorded the highest rate of oil biodegradation (0.0556 day−1) in 15% oil pollution. The results of this study demonstrated the potential of BSG as a good substrate for enhanced remediation of hydrocarbon contaminated soil at low pollution concentration.

scholarly journals Magnetic solid phase extraction with octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles as the sorbent for determining benzene, toluene, ethylbenzene and xylenes in water samples

RSC Advances ◽  
2017 ◽  
Vol 7 (66) ◽  
pp. 41862-41868 ◽  
Author(s):  
Maosheng Zhang ◽  
Guobin Huang ◽  
Jiarong Huang ◽  
Ling Zhong ◽  
Weilan Chen
Keyword(s):  
Magnetic Nanoparticles ◽  
Solid Phase Extraction ◽  
Water Samples ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Benzene Toluene ◽  
Magnetic Solid ◽  
First Time

Novel octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles (Fe3O4@SiO2@PDMS MNPs) have been successfully synthesized for the first time.

Performance of used lubricating oil as flotation collector for the recovery of clean low-rank coal

Fuel ◽  
2019 ◽  
Vol 239 ◽  
pp. 717-725 ◽  
Author(s):  
Yangchao Xia ◽  
Zili Yang ◽  
Rui Zhang ◽  
Yaowen Xing ◽  
Xiahui Gui
Keyword(s):  
Low Rank ◽  
Lubricating Oil ◽  
Low Rank Coal ◽  
Used Lubricating Oil ◽  
Flotation Collector

scholarly journals Ecotoxicological Tests in Winogradsky Columns Contaminated by Used Lubricating Oil and Biodiesel

2012 ◽  
Vol 1 (2) ◽  
Author(s):  
Karen Hosomi Teramae ◽  
Mariana Lopes de Sousa ◽  
Dejanira de Fransceschi De Angelis ◽  
Ederio Dino Bidoia
Keyword(s):  
Lubricating Oil ◽  
Ecotoxicological Tests ◽  
Used Lubricating Oil

scholarly journals Identification and quantification of organic pollutants in the air of the city of Astana using solid phase microextraction

2017 ◽  
pp. 14-17
Author(s):  
Dina Orazbayeva ◽  
Ulzhalgas Karatayeva ◽  
Kulzhan Beysembayeva ◽  
Kulyash Meyramkulova
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Ambient Air ◽  
Average Concentration ◽  
Polycyclic Aromatic ◽  
Benzene Toluene ◽  
The City

Solid-phase microextraction in combination with gas chromatography and mass-spectrometry (GC-MS) was used for determination of benzene, toluene, ethylbenzene and o-xylene (BTEX), polycyclic aromatic hydrocarbons (PAH), and for identification of volatile organic compounds (VOCs) in ambient air of the city of Astana, Kazakhstan. The screening of the samples showed the presence of mono- and polycyclic aromatic hydrocarbons, alkanes, alkenes, phenols, and benzaldehydes. The concentrations of naphthalene were 5-7 times higher than the permissible value, it was detected in all studied air samples. Average concentration of naphthalene was 18.4 μg/m3, acenaphthylene – 0.54 μg/m3, acenaphthene – 1.63 μg/m3, fluorene – 0.79 μg/m3, anthracene – 3.27 μg/m3, phenanthrene – 0.22 μg/m3, fluorantene – 0.74 μg/m3, pyrene – 0.73 μg/m3. Average concentrations of BTEX in the studied samples were 31.1, 84.9, 10.8 and 11.6 μg/m3, respectively. Based on the statistical analysis of the concentrations of BTEX and PAH, the main source of city air pollution with them was assumed to be vehicle emissions.

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