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Lingamdinne LP, Kulkarni R, Choi YL, Pal CA, Momin ZH, Won SJ, Koduru JR, Chang YY. Analyzing atmospheric plasma's potential for diesel soil remediation: Insightful mechanisms. CHEMOSPHERE 2024; 362:142586. [PMID: 38876328 DOI: 10.1016/j.chemosphere.2024.142586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/29/2024] [Accepted: 06/09/2024] [Indexed: 06/16/2024]
Abstract
The remediation of diesel-contaminated soil is a critical environmental concern, driving the need for effective solutions. Recently, the methodology of Non-thermal Atmospheric Plasma (NTAP) technology, which is equipped with a Dielectric Barrier Discharge (DBD) electrode and has become a feasible approach, was proven to be viable. The reactive species from the plasma were exposed to the contaminated soil in this investigation using the NTAP technique. The reacted soil was then extracted using dichloromethane, and the amount of Total Petroleum Hydrocarbon (TPH) removed was assessed. Investigation into varying power levels, treatment durations, and hydrogen peroxide integration revealed significant findings. With an initial concentration of 3086 mg of diesel/kg of soil and a pH of 5.0, 83% of the diesel was removed from the soil at 150 W in under 20 min. Extended exposure to NTAP further improved removal rates, highlighting the importance of treatment duration optimization. Additionally, combining hydrogen peroxide (H2O2) with NTAP enhanced removal efficiency by facilitating diesel breakdown. This synergy offers a promising avenue for comprehensive soil decontamination. Further analysis considered the impact of soil characteristics on removal efficacy. Mechanistically, NTAP generates reactive species that degrade diesel into less harmful compounds, aiding subsequent removal. Overall, NTAP advances environmental restoration efforts by offering a quick, economical, and environmentally benign method of remediating diesel-contaminated soil especially when used in tandem with hydrogen peroxide.
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Affiliation(s)
| | - Rakesh Kulkarni
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Yu-Lim Choi
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | | | - Zahid Husain Momin
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Shin Jae Won
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
| | - Yoon-Young Chang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
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2
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Tian M, Liu H, Cui J, Weng Y, Wang X, Feng E, Zhang W, Cao C, Wen J, Huang G, Xu S. Mechanism of highly efficient oil removal from spent hydrodesulfurization catalysts by ultrasound-assisted surfactant cleaning methods. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134514. [PMID: 38718511 DOI: 10.1016/j.jhazmat.2024.134514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 04/24/2024] [Accepted: 04/30/2024] [Indexed: 05/30/2024]
Abstract
The removal of crude oil from spent hydrodesulfurization catalysts constitutes the preliminary stage in the recovery process of valuable metals. However, the traditional roasting method for the removal exhibits massive limitations. In view of this, the present study used an ultrasound-assisted surfactant cleaning method to remove crude oil from spent hydrodesulfurization catalysts, which demonstrated effectiveness. Furthermore, the study investigated the mechanism governing the process with calculation and experiments, so as to provide a comprehensive understanding of the cleaning method's efficacy. The surfactant selection was predicated on the performance in the IFT test, with SDBS and TX-100 finally being chosen. Subsequent calculations and analysis were then conducted to elucidate their frontier molecular orbitals, electrostatic potential, and polarity. It has been found that both SDBS and TX-100 possess the smallest LUMO-HOMO energy gap (ΔE), registering at 4.91 eV and 4.80 eV, respectively, and presenting the highest interfacial reactivity. The hydrophilic structure in the surfactant regulates the wettability of the oil-water interface, and the long-chain alkanes have excellent non-polar properties that promote the dissolution of crude oil. The ultrasonic-assisted process further improves the interface properties and enhances the oil removal effect. Surprisingly, the crude oil residue was reduced to 0.25% under optimal conditions. The final phase entailed the techno-economic evaluation of the entire process, revealing that, in comparison to the roasting method, this process saves $0.38 per kilogram of spent HDS catalyst, with the advantages of operational simplicity and emission-free. Generally, this study shed new light on the realization of efficient oil removal, with the salience of green, sustainable, and economical.
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Affiliation(s)
- Maolin Tian
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China
| | - Hongtao Liu
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China
| | - Jian Cui
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China
| | - Yaqing Weng
- Jiangxi Academy of Sciences, Jiangxi 330096, China
| | - Xueli Wang
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China
| | - Erkang Feng
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China
| | - Wenjie Zhang
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China
| | - Caifang Cao
- Jiangxi University of Science and Technology, Jiangxi, 341000, China
| | - Jiawei Wen
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China.
| | - Guoyong Huang
- College of New Energy and Materials, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China.
| | - Shengming Xu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China; Beijing Key Lab of Fine Ceramics, Tsinghua University, Beijing 100084, China
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Maya-Yescas ME, Gutiérrez-Rojas M, García-Rivero M. Enhancing biodegradation of aged hydrocarbon-contaminated soils through toluene addition: assessing effects on solid and slurry phase treatments. Biodegradation 2024:10.1007/s10532-024-10089-y. [PMID: 38910213 DOI: 10.1007/s10532-024-10089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/13/2024] [Indexed: 06/25/2024]
Abstract
The main challenge in treating aged soils highly contaminated with total petroleum hydrocarbons (TPH) is to enhance their bioavailability for microbial degradation. Hydrocarbons in soils undergo chemical changes that make them more resistant to biodegradation. This study investigates toluene's efficacy in enhancing the biodegradation of aged hydrocarbon-contaminated soil containing 292,000 mg TPH kg-1 dry soil. Toluene's effect was compared between solid phase (SOP) and slurry phase (SLP) treatments using a microbial consortium isolated from Cyperus laxus rhizosphere. TPH biodegradation and microbial respiration were measured, the latter to estimate the respiratory quotient (RQ, the ratio between moles of carbon dioxide released and moles of oxygen absorbed during respiration). Toluene significantly accelerated TPH biodegradation in both treatments, achieving ~ 30% higher removal than in a non-solvent control, possibly through improved bioavailability of aromatic compounds and other low molecular weight compounds. According to the RQ analysis, toluene enhanced microbial respiratory processes and hydrocarbon catabolism with higher hydrocarbon mineralization (RQ = ~ 0.5) in both SOP and SLP assays. Our results reveal toluene's potential to increase hydrocarbon availability and microbial degradation efficiency in aged contaminated soils; its use in various bioremediation techniques could be of broad applicability across diverse soil types and pollutants.
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Affiliation(s)
- M E Maya-Yescas
- Universidad Autónoma Metropolitana-Cuajimalpa, Vasco de Quiroga 4871, Cuajimalpa, 05348, Mexico City, Mexico
| | - M Gutiérrez-Rojas
- Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No. 186, 09340, Mexico City, Mexico
| | - M García-Rivero
- División de Ingeniería Química y Bioquímica, Tecnológico Nacional de México/Tecnológico de Estudios Superiores de Ecatepec,, Av. Tecnológico S/N, 55210, Ecatepec de Morelos, Edo. de Mexico, Mexico.
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Revina S, Minnikova T, Ruseva A, Kolesnikov S, Kutasova A. Catalase activity as a diagnostic indicator of the health of oil-contaminated soils after remediation. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:449. [PMID: 38609694 DOI: 10.1007/s10661-024-12604-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
The work objective was to assess the ecological state of soils by changing the residual oil content and restoring catalase activity after remediation. The soils were selected in various ecosystems: a steppe of the Rostov Region (Haplic Chernozem), beech-hornbeam forests in the Republic of Adygea (Haplic Cambisols), and semi-desert of the Caspian province of the Republic of Kalmykia (Eutric Cambisols). Soil samples were polluted with oil at a concentration of 5% of the soil mass. After that, ameliorants (biochar, nitroammophoska, sodium humate, and Baikal EM-1) were introduced into the oil-contaminated soil. The catalase activity of Haplic Cambisols was stimulated only with the introduction of D2 biochar by 11% relative to the control, and in Haplic Chernozem, catalase was most stimulated with the addition of nitroammophoska D0.5 and D1 by 65% and 57% of the control, respectively. Nitroammophoska in all doses significantly stimulated the enzymatic activity, in Eutric Cambisols by four to six times compared to the control. The range of soil stability determined by catalase activity: Eutric Cambisols > Haplic Chernozem > Haplic Cambisols. Thus, it is most effective to apply biochar in doses of D and D2 and D0.5 and D nitroammophoska during the remediation of oil-contaminated Haplic Chernozem. For the remediation of Haplic Cambisols, it is effective to introduce biochar in dose of D2, and Eutric Cambisols-biochar and sodium humate in dose of D0.5 and nitroammophoska (all doses). The results of the study allow using catalase activity as a very informative and statistically significant diagnostical indicator of the health of oil-contaminated soils after remediation.
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Affiliation(s)
- Sofia Revina
- Academy of Biology and Biotechnology Named By D.I. Ivanovsky, Southern Federal University, Rostov-On-Don, Russian Federation
| | - Tatiana Minnikova
- Academy of Biology and Biotechnology Named By D.I. Ivanovsky, Southern Federal University, Rostov-On-Don, Russian Federation.
| | - Anna Ruseva
- Academy of Biology and Biotechnology Named By D.I. Ivanovsky, Southern Federal University, Rostov-On-Don, Russian Federation
| | - Sergei Kolesnikov
- Academy of Biology and Biotechnology Named By D.I. Ivanovsky, Southern Federal University, Rostov-On-Don, Russian Federation
| | - Anastasia Kutasova
- Academy of Biology and Biotechnology Named By D.I. Ivanovsky, Southern Federal University, Rostov-On-Don, Russian Federation
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Acharya TR, Lamichhane P, Jaiswal A, Amsalu K, Hong YJ, Kaushik N, Kaushik NK, Choi EH. The potential of multicylindrical dielectric barrier discharge plasma for diesel-contaminated soil remediation and biocompatibility assessment. ENVIRONMENTAL RESEARCH 2024; 240:117398. [PMID: 37838201 DOI: 10.1016/j.envres.2023.117398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 10/05/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
This study explored the use of multicylindrical dielectric barrier discharge (MC-DBD) plasma technology to eliminate diesel fuel contamination from the soil. This study also assessed the environmental impact of plasma-generated reactive species on soil properties, plant growth, and the safety of microbial and human skin cells using various analytical methods. MC-DBD plasma was characterized using the current-voltage analysis and optical emission spectroscopy (OES). Gas Fourier transform infrared spectroscopy was employed to detect reactive species, such as O3, NO, NO2, N2O, and HNO3, in the plasma-treated air. The diesel fuel concentration in the soil was measured before and after plasma treatment using a gas chromatography-flame ionization detector. The efficacy of the MC-DBD plasma treatment was evaluated based on soil characteristics (pH and moisture), discharge parameters (power), and reactive species (O3 and NOx). Using only power of 30 W, the MC-DBD achieved a 94.19% removal of diesel fuel from the soil and yielded an energy efficiency of 1.78 × 10-2 m3/kWh within a 60-min treatment period. Neutral soil with a moisture content of 2% proved more effective in diesel fuel removal compared with acidic or alkaline soil with higher moisture content. O3 was the most efficient plasma-generated reactive species for diesel fuel removal and is involved in oxidation-induced fragmentation and volatilization. Overall, the potential of the MC-DBD plasma technology for remediating diesel fuel-contaminated soils is highlighted, and valuable insights for future applications are provided.
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Affiliation(s)
- Tirtha Raj Acharya
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea
| | - Prajwal Lamichhane
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea
| | - Apurva Jaiswal
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea
| | - Kirubel Amsalu
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea
| | - Young June Hong
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea
| | - Neha Kaushik
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong, 18323, Seoul, South Korea
| | - Nagendra Kumar Kaushik
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea
| | - Eun Ha Choi
- Department of Electrical and Biological Physics/Plasma Bioscience Research Center, Kwangwoon University, 01897, Seoul, South Korea.
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Rahman S, Rahman IMM, Hasegawa H. Management of arsenic-contaminated excavated soils: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 346:118943. [PMID: 37748284 DOI: 10.1016/j.jenvman.2023.118943] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/26/2023] [Accepted: 09/04/2023] [Indexed: 09/27/2023]
Abstract
Ongoing global sustainable development and underground space utilization projects have inadvertently exposed many excavated soils naturally contaminated with geogenic arsenic (As). Recent investigations have revealed that As in certain excavated soils, especially those originating from deep construction projects, has exceeded regulatory limits, threatening the environment and human health. While numerous remediation techniques exist for treating As-contaminated soil, the unique characteristics of geogenic As contamination in excavated soil require specific measures when leachable As content surpasses established regulatory limits. Consequently, several standard leaching tests have been developed globally to assess As leaching from contaminated soil. However, a comprehensive comparative analysis of these methods and their implementation in contaminated excavated soils remains lacking. Furthermore, the suitability and efficacy of most conventional and advanced techniques for remediating As-contaminated excavated soils remained unexplored. Therefore, this study critically reviews relevant literature and summarize recent research findings concerning the management and mitigation of geogenic As in naturally contaminated excavated soil. The objective of this study was to outline present status of excavated soil globally, the extent and mode of As enrichment, management and mitigation approaches for As-contaminated soil, global excavated soil recycling strategies, and relevant soil contamination countermeasure laws. Additionally, the study provides a concise overview and comparison of standard As leaching tests developed across different countries. Furthermore, this review assessed the suitability of prominent and widely accepted As remediation techniques based on their applicability, acceptability, cost-effectiveness, duration, and overall treatment efficiency. This comprehensive review contributes to a more profound comprehension of the challenges linked to geogenic As contamination in excavated soils.
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Affiliation(s)
- Shafiqur Rahman
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, 920-1192, Japan.
| | - Ismail M M Rahman
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima City, Fukushima, 960-1296, Japan.
| | - Hiroshi Hasegawa
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa, 920-1192, Japan.
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Vu KA, Mulligan CN. Remediation of oil-contaminated soil using Fe/Cu nanoparticles and biosurfactants. ENVIRONMENTAL TECHNOLOGY 2023; 44:3446-3458. [PMID: 35361056 DOI: 10.1080/09593330.2022.2061381] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Oil (or petroleum), consisting of a mixture of hydrocarbons, can leak from oil exploration, production, and use. Due to their complex mixture and interaction with the subsurface soil and water, they are hard to treat and can become a significant environmental concern. Rhamnolipid and sophorolipid biosurfactants, biologically produced surfactants, can be used to remove petroleum hydrocarbons. Nanoparticles have gained attention as promising materials for soil remediation. In this study, suspensions of Fe-Cu nanoparticles and biosurfactants were employed for the remediation of oil-contaminated soil. The results showed that these suspensions displayed a high oil removal rate from contaminated soil, which followed the first-order reaction. For batch experiments, the oil remediation efficiency was up to 84%. Optimum conditions to achieve the highest oil remediation performance included a rhamnolipid biosurfactant: nanoparticle ratio of 10:1 (wt%: wt%), pH 7, room temperature, and shaking speed of 60 rpm for 60 min. The remediation rate was improved by higher temperature and lower ionic strength. In the presence and absence of nanoparticles, rhamnolipid biosurfactant demonstrated a higher remediation efficiency than sophorolipid biosurfactant and ultraplex surfactant. The presence of other surfactants decreased the treatment productivity by 9-14% compared to using only rhamnolipid biosurfactant. Nanoparticles were reused with a remediation efficiency of 59% after three cycles by rhamnolipid biosurfactant. These results suggested that biosurfactants/Fe-Cu nanoparticle suspension showed promise for the remediation of oil-contaminated soil.
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Affiliation(s)
- Kien A Vu
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Canada
| | - Catherine N Mulligan
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Canada
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Zhang F, Wu Q, Sha LT, Li Y, Li XX, Wang ZY, Fu X, Huang QG, Liu B, Yan ZY. Selective extraction of thorium to directly form self-assembly solid from HNO3 solution. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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9
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Yue R, An C, Ye Z, Li X, Li Q, Zhang P, Qu Z, Wan S. A pH-responsive phosphoprotein washing fluid for the removal of phenanthrene from contaminated peat moss in the cold region. CHEMOSPHERE 2023; 313:137389. [PMID: 36455665 DOI: 10.1016/j.chemosphere.2022.137389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/19/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Oil pollution is one of the major environmental concerns in the petroleum industry. In this study, a cheap food-grade sodium caseinate (NaCas) was used as a pH-responsive washing fluid in the remediation of phenanthrene (PHE) affected peat moss. The effects of environmental factors on the removal of PHE were systematically investigated. The results showed that increasing NaCas concentration and washing temperature improved the PHE mobilization, while high salinity and humic acid dosage displayed a negative effect. The factorial analysis revealed that three individual factors and two interactions exhibited significant effects on the washing performance. Due to the pH-responsive property of NaCas, the turbidity, total organic carbon (TOC), and chemical oxygen demand (COD) of the washing effluent were remarkably reduced by simply adjusting the solution acidity, improving the practical application of such a washing method. Significantly, the toxicity modeling proved that NaCas can reduce the binding energy between PHE and superoxide dismutase (SOD) of the selected marine organism, and thus relieve the toxicity of PHE to the organisms. Given these advantages, NaCas-assisted washing can be a viable option for the remediation of contaminated peat moss.
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Affiliation(s)
- Rengyu Yue
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Chunjiang An
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada.
| | - Zhibin Ye
- Department of Chemical and Materials Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Xixi Li
- The Northern Region Persistent Organic Pollution (NRPOP) Control Laboratory, Faculty of Engineering and Applied Science, Memorial University, St. John's, A1B 3X5, Canada; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Qing Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
| | - Peng Zhang
- Faculty of Engineering and Applied Science, University of Regina, Regina, S4S 0A2, Canada
| | - Zhaonian Qu
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Shuyan Wan
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
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Akinwande AA, Folorunso DO, Balogun OA, Danso H, Romanovski V. Paperbricks produced from wastes: modeling and optimization of compressive strength by response surface approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:8080-8097. [PMID: 36048391 DOI: 10.1007/s11356-022-22774-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
The high cost of building materials occasioned by the increased cost of constituent materials has contributed immensely to the problem of housing deficit faced in Africa and major developing countries of the world. Waste paper can be recycled into bricks but there are limited studies to that effect. Waste glass is used as partial cement replacement to reduce the cost of cement and is also used as a pozzolan. This study focused on the development of paperbricks from the wastes of paper and glass. Response surface method (RSM) was involved in the design of the experiment involving 4 factors: glass powder replacement of cement (A), curing duration (B), compaction pressure (C), and water/cement ratio (D). Box-Behnken method was engaged for the 4-factor, 3-level design. The result of ANOVA showed that experimental inputs had a significant effect on compressive strength response. Factors A, B, and C had a synergetic effect on the response while factor D had an antagonistic effect on the response. Combined interaction between the factors that the response depended on the interactive patterns of the factors. A statistical fit model was developed to predict the compressive strength of the composite. RSM optimization revealed a combination of 36.68%, 57.82 days, 8.50 MPa, and 0.364 for factors A, B, C, and D, respectively, predicting a strength value of 7.358 MPa. Validation experiment carried out using the optimal conditions yielded 7.54 MPa; a deviation of + 0.0247. Since the deviation is less than ± 0.05, the model was statistically validated and fit.
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Affiliation(s)
- Abayomi Adewale Akinwande
- Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Nigeria.
| | - Davies Oludayo Folorunso
- Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Nigeria
| | | | - Humphrey Danso
- Department of Construction and Wood Technology, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development, Kumasi, Ghana
| | - Valentin Romanovski
- Center of Functional Nano-Ceramics, National University of Science and Technology «MISIS», Lenin av., 4, 119049, Moscow, Russia
- Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA, 22904, USA
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Kalvandi S, Garousin H, Pourbabaee AA, Farahbakhsh M. The release of petroleum hydrocarbons from a saline-sodic soil by the new biosurfactant-producing strain of Bacillus sp. Sci Rep 2022; 12:19770. [PMID: 36396722 PMCID: PMC9672099 DOI: 10.1038/s41598-022-24321-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Adsorption of old-aged petroleum hydrocarbons to the soil solid phase, which causes biosurfactant loss of performance, is among the limiting factors for the remediation of the saline-sodic soils contaminated with petroleum. Therefore, to find a functional biosurfactant in oil-contaminated saline-sodic soils, the efficiency of 39 bacteria isolated from petroleum-contaminated soils was evaluated. The strains were cultured in the Bushnell-Haas medium, and the produced biosurfactants and bioemulsifiers in this medium were extracted using chloroform/methanol and ethyl acetate extraction methods, respectively. Their partial purification was performed by column chromatography, and eventually, their performance in releasing TPH from the contaminated soil was evaluated. The soil test results revealed that the highest TPH releases due to the effects of the biosurfactants and bioemulsifier produced from SHA302, SH21, and SH72 isolates were 42.4% ± 0.2, 21.6% ± 0.15 and 24.3% ± 0.91, respectively. Based on the 16S rRNA gene sequence, the SHA302 strain showed 93.98% phylogenetic similarity with Bacillus pumilus strain ATCC 7061. The Fourier transform infrared spectroscopy and thin-layer chromatography results proved that the biosurfactants produced by isolates SHA302, SH21 and SH72 showed lipopeptide, glycolipoprotein and glycoprotein natures, respectively. The performance of the biosurfactant produced by SHA302 isolate indicated that it could be used as a good candidate for releasing TPH from saline-sodic soils with old contamination and facilitating the degradation of hydrocarbons.
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Affiliation(s)
- Sahar Kalvandi
- grid.46072.370000 0004 0612 7950Biology and Biotechnology Lab, Department of Soil Science, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Hamidreza Garousin
- grid.46072.370000 0004 0612 7950Biology and Biotechnology Lab, Department of Soil Science, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Ahmad Ail Pourbabaee
- grid.46072.370000 0004 0612 7950Biology and Biotechnology Lab, Department of Soil Science, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Mohsen Farahbakhsh
- grid.46072.370000 0004 0612 7950Biology and Biotechnology Lab, Department of Soil Science, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
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Liu C, Kwon JH, Prabhu SM, Ha GS, Khan MA, Park YK, Jeon BH. Efficiency of diesel-contaminated soil washing with different tween 80 surfactant concentrations, pH, and bentonite ratios. ENVIRONMENTAL RESEARCH 2022; 214:113830. [PMID: 35820655 DOI: 10.1016/j.envres.2022.113830] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/21/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Soil contaminated with diesel fuel is a hazard to the environment and people; therefore, it needs to be remediated. Soil washing enhanced with Tween 80 (TW80), non-toxic and non-ionic surfactant, can effectively remove diesel from contaminated soils. In this study, the effects of 0.01%, 0.1%, 0.5%, 1%, and 1.5% (v/v) [TW80] concentrations; 0%, 5%, and 15% (w/w) bentonite; and variation in pH on washing efficiency were examined in a batch test. The prepared samples were physiochemically characterized on the basis of particle size, zeta potential, cation exchange capacity (CEC), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analysis. When the bentonite content in soil was 5% or 15%, 1.5% [TW80] solution exhibited the highest washing efficiency. The diesel removal efficiencies in soil with 0% bentonite were slightly higher than those in soils with 5% and 15% bentonite because of the increase in adsorption sites by bentonite; consequently, diesel could not be easily washed out. The extracted n-alkanes showed that the percentage of carbon number 20 was higher than that of the other even-numbered carbons in the retained washed samples analyzed by gas chromatography-mass spectrometry (GC-MS). In all the washing tests, the diesel removal efficiencies in soil with 15% bentonite and 0.1% [TW80] were lower than those in soil with 15% bentonite and water because of adsorption. The bentonite samples washed with TW80 have different morphologies, with a voluminous structure composed of the fusion of all layered structures, as supported by SEM results. Changes in the diesel content and residual TW80 content in the soil before and after washing were shown by the carbon content in the EDS results. The mechanism of the washing effect was investigated by CEC and zeta potential measurements. This study may aid in selecting appropriate conditions for improving washing efficiencies in future field applications.
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Affiliation(s)
- Chengjia Liu
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Ju-Hyeok Kwon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Subbaiah Muthu Prabhu
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Geon-Soo Ha
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Moonis Ali Khan
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Young-Kwon Park
- Department. of Environmental Engineering, University of Seoul, Seoul, 02504, South Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, South Korea.
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13
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Huo L, Liu G, Li Y, Yang X, Zhong H. Solubilization of residual dodecane by surfactants in porous media: The relation between surfactant partition and solubilization. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Ambust S, Das AJ, Paul SK, Kumar R, Ghosh D. Remediation and detoxification of oil contaminated marine intertidal sites through lipopeptide assisted washing strategy: An experimental and kinetic validation approach. MARINE POLLUTION BULLETIN 2022; 180:113817. [PMID: 35691182 DOI: 10.1016/j.marpolbul.2022.113817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
This paper presents a tightly coupled experimental and kinetic approach for efficient remediation of oil spill from contaminated marine intertidal zone surface through a methodical strategy that deals with biosurfactant mediated washing strategy. The study deals with production, optimization and characterization of lipopeptide biosurfactant from Bacillus subtilis T1 and its application in remediation of oil contaminants from mimic model system of various marine intertidal zone i.e. woodland-Group1, saltmarsh-Group2, mangrove-Group3 and mudflats-Group4. Results demonstrates enhanced washing performance with oil desorption rate of 35 % in Group 4, 17.22 %, 15.6 % and 11 % in Group 3, 2 and 1 along with bio surfactant recovery rate of 41 %, 48.7 %, 51.71 % and 50.3 % respectively. Further, the washing strategy was efficient in soil detoxification with highest rate in Group 4. The kinetic validation depicts good match among experimental data and Lagergren pseudo second order data.
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Affiliation(s)
- Shweta Ambust
- Department of Environmental Microbiology, Babasaheb BhimraoAmbedkar (A Central) University, Lucknow 226025, India
| | - Amar Jyoti Das
- Department of Environmental Microbiology, Babasaheb BhimraoAmbedkar (A Central) University, Lucknow 226025, India; Environmental Microbiology Research Group, Department of Life Science, Graphic era Deemed to be University, Dehradun, Uttarakhand 248002, India.
| | - Souvik Kumar Paul
- Department of Chemical Engineering, Calcutta Institute of Technology, Banitabla, Uluberia, Howrah, West Bengal 711316, India
| | - Rajesh Kumar
- Department of Environmental Microbiology, Babasaheb BhimraoAmbedkar (A Central) University, Lucknow 226025, India
| | - Debashish Ghosh
- Material Resource Efficiency Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, Uttarakhand 248005, India
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15
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Rahman S, Rahman IMM, Ni S, Harada Y, Kasai S, Nakakubo K, Begum ZA, Wong KH, Mashio AS, Ohta A, Hasegawa H. Enhanced remediation of arsenic-contaminated excavated soil using a binary blend of biodegradable surfactant and chelator. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128562. [PMID: 35248963 DOI: 10.1016/j.jhazmat.2022.128562] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
The reclamation of geogenic As-contaminated excavated soils as construction additives can reduce the post-disposal impact on the ecosystem and space. Although retaining soil characteristics while reducing contaminant load is a challenging task, washing remediation with biodegradable surfactants or chelators is a promising alternative to non-biodegradable counterparts. In this study, newly synthesized biodegradable surfactants (SDG: sodium N-dodecanoyl-glycinate, SDBA: sodium N-dodecanoyl-β-alaninate, SDGBH: sodium N-dodecanoyl-α,γ-glutamyl-bis-hydroxyprolinate, SDT: sodium N-dodecanoyl-taurinate, and DCPC: N-dodecyl-3-carbamoyl-pyridinium-chloride) and biodegradable chelators (EDDS: ethylenediamine N,N'-disuccinic acid, GLDA: L-glutamate-N, N'-diacetic acid, and HIDS: 3-hydroxy-2,2'-imino disuccinic acid) are evaluated for the remediation of As-contaminated soil. The operating variables, such as washing duration, solution pH, and surfactant or chelator concentration, are optimized for maximum As extraction. SDT shows the highest As-extraction efficiency irrespective of solution pH and surfactant variants, while HIDS is the superior chelator under acidic or alkaline conditions. A binary blend of SDT and HIDS is evaluated for As extraction under varying operating conditions. The SDT-HIDS binary blend demonstrates 6.9 and 1.6-times higher As-extraction rates than the SDT and HIDS-only washing, respectively, under acidic conditions. The proposed approach with a binary blend of a biodegradable surfactant and chelator is a green solution for recycling As-contaminated excavated soils for geotechnical applications.
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Affiliation(s)
- Shafiqur Rahman
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
| | - Ismail M M Rahman
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima City, Fukushima 960-1296, Japan.
| | - Shengbin Ni
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Yasuhiro Harada
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Shuto Kasai
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Keisuke Nakakubo
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Zinnat A Begum
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima City, Fukushima 960-1296, Japan; Department of Civil Engineering, Southern University, Arefin Nagar, Bayezid Bostami, Chattogram 4210, Bangladesh
| | - Kuo H Wong
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Asami S Mashio
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Akio Ohta
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
| | - Hiroshi Hasegawa
- Institute of Science and Engineering, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
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16
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Issaka E, Fapohunda FO, Amu-Darko JNO, Yeboah L, Yakubu S, Varjani S, Ali N, Bilal M. Biochar-based composites for remediation of polluted wastewater and soil environments: Challenges and prospects. CHEMOSPHERE 2022; 297:134163. [PMID: 35240157 DOI: 10.1016/j.chemosphere.2022.134163] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/13/2022] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
Pharmaceuticals, heavy metals, pesticides, and dyes are the main environmental contaminants that have serious effects on both land and aquatic lives and necessitate the development of effective methods to mitigate these issues. Although some conventional methods are in use to tackle soil contamination, but biochar and biochar-based composites represent a reliable and sustainable means to deal with a spectrum of toxic organic and inorganic pollutants from contaminated environments. The capacity of biochars and derived constructs to remediate inorganic dyes, pesticides, insecticides, heavy metals, and pharmaceuticals from environmental matrices is attributed to their extensive surface area, surface functional groups, pore size distribution, and high sorption capability of these pollutants in water and soil environments. Application conditions, biochar feedstock, pyrolysis conditions and precursor materials are the factors that influence the capacity and functionality of biochar to adsorb pollutants from wastewater and soil. These factors, when improved, can benefit biochar in agrochemical and heavy metal remediation from various environments. However, the processes involved in biochar production and their influence in enhancing pollutant sequestration remain unclear. Therefore, this paper throws light on the current strategies, operational conditions, and sequestration performance of biochar and biochar-based composites for agrochemical and heavy metal in soil and water environments. The main challenges associated with biochar preparation and exploitation, toxicity evaluation, research directions and future prospects for biochar in environmental remediation are also outlined.
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Affiliation(s)
- Eliasu Issaka
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | | | | | - Linda Yeboah
- School of Biological Sciences, University of Ghana, Legon, 00233, Accra, Ghana
| | - Salome Yakubu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382 010, Gujarat, India
| | - Nisar Ali
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Deep Utilization Technology of Rock-salt Resource, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
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17
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Gao J, Hao M, Wu T, Li Y. A fast and efficient method for the efficient recovery of crude oil from spent hydrodesulphurization catalyst. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Ma Y, Yao M, Liu L, Qin C, Qin B, Deng N, Liang C, Yao S. Mechanism and Characteristics of Oil Recovery from Oily Sludge by Sodium Lignosulfonate Treatment. ACS OMEGA 2021; 6:25819-25827. [PMID: 34632237 PMCID: PMC8495870 DOI: 10.1021/acsomega.1c04369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
The separation of oil components from oily sludge is an important component of soil remediation and energy recovery. Therefore, establishing a green and efficient separation technology is of great significance. In this study, oily sludge was separated using sodium lignosulfonate (SL) treatment. The effects of temperature, SL concentration, rotate speed, time, and pH on the oil removal rate were studied. The optimal conditions were as follows: temperature, 30 °C; SL concentration, 2.0 g·L-1; rotate speed, 200 rpm; time, 60 min; and pH 11. The maximum oil removal rate was 83.21%. The physicochemical properties of oily sludge were analyzed. The soil was looser, and the contact angle (55°) of the soil surface was reduced. Alkanes, aldehydes, ketones, carbonic acids, benzene rings, and alicyclic ethers were removed. The result shows that the SL treatment removed a wider range of petroleum hydrocarbon and had a stronger oil removal capacity. It provides a new method for the green and efficient separation of oily sludge.
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Affiliation(s)
- Yun Ma
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Mingzhu Yao
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Lu Liu
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Chengrong Qin
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Baicheng Qin
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Ningkang Deng
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Chen Liang
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
| | - Shuangquan Yao
- Guangxi Key Laboratory of
Clean Pulp & Papermaking and Pollution Control, School of Light
Industrial and Food Engineering, Guangxi
University, Nanning 530004, P. R. China
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19
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Solidification/Stabilization of Contaminated Soil in a South Station of the Khurmala Oil Field in Kurdistan Region, Iraq. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167474] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Currently, the primary source of pollution is crude oil production. Crude oil production has dramatic consequences for farmlands, communities, and in terms of the construction materials required for earthworks. The main aims of the present study were to reduce the level of pollution caused by oil production in the Khurmala soil and then reuse it as a construction material. Soil remediation using the solidification/stabilization method was applied in the field using Portland limestone cement (CEM II). The performance of using CEM II in the remediation process was then investigated in the laboratory by taking the natural, contaminated, and treated soils from the Khurmala site. Furthermore, the results of the soils were compared with their corresponding soil samples using ordinary Portland cement (OPC). The comparison was performed by investigating the physical, chemical, and mechanical properties of the soils. The discussion was supported using the scanning electron microscopy (SEM) results. Chemical and SEM results revealed that there were fourfold and tenfold decreases in the percentage of oil and grease using OPC and CEM II, respectively, confirming the higher performance of using CEM II over OPC. The values of the coefficient of permeability, shear strength parameters, and California bearing ratio of the treated soils were significantly improved, compared to those of the contaminated soils.
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20
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Cruz Barrios E, Annunziata O. Determination of Critical Micelle Concentration from the Diffusion-Driven Dilution of Micellar Aqueous Mixtures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2855-2862. [PMID: 33596077 DOI: 10.1021/acs.langmuir.1c00176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Micellization is a phenomenon of central importance in surfactant solutions. Here, we demonstrate that the diffusion-based spreading of the free boundary between a micellar aqueous solution and pure water yields a one-dimensional spatial profile of surfactant concentration that can be used to identify the critical micelle concentration, here denoted as C*. This can be achieved because dilution of micelles into water leads to their dissociation at a well-defined position along the concentration profile and an abrupt increase in the diffusion coefficient. Rayleigh interferometry was successfully employed to determine C* values for three well-known surfactants in water at 25 °C: Triton X-100 (TX-100), sodium dodecyl sulfate (SDS), and poly(oxyethylene)(4)Lauryl Ether (Brij-30). The dependence of C* on salt concentration was also characterized for TX-100 in the presence of Na2SO4, NaCl, and NaSCN. Accurate values of C* can be directly identified by visual inspection of the corresponding concentration-gradient profiles. To apply the method of least squares to experimental concentration profiles, a mathematical expression was derived from Fick's law and the pseudophase separation model of micellization with the inclusion of appropriate modifications. While Rayleigh interferometry was employed in our experiments, this approach can be extended to any experimental technique that yields one-dimensional profiles of surfactant concentration. Moreover, diffusion-driven surfactant disaggregation is precise, noninvasive, requires single-sample preparation, and applies to both nonionic and ionic surfactants. Thus, this work provides the foundation of diffusion-driven dilution methods, thereby representing a valuable addition to existing techniques for the determination of C*.
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Affiliation(s)
- Eliandreina Cruz Barrios
- Department of Chemistry and Biochemistry, Texas Christian University, 2950 W. Bowie St., Sid Richardson Bldg. #438, Fort Worth, Texas 76129, United States
| | - Onofrio Annunziata
- Department of Chemistry and Biochemistry, Texas Christian University, 2950 W. Bowie St., Sid Richardson Bldg. #438, Fort Worth, Texas 76129, United States
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21
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Yin J, Huang G, An C, Zhang P, Xin X, Feng R. Exploration of nanocellulose washing agent for the green remediation of phenanthrene-contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123861. [PMID: 33264936 DOI: 10.1016/j.jhazmat.2020.123861] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/11/2020] [Accepted: 08/21/2020] [Indexed: 06/12/2023]
Abstract
Polycyclic aromatic hydrocarbons are hazardous contaminants existing ubiquitously in polluted soil. In this study, using nanocellulose (CNC) fluid as an eco-friendly agent was proposed for the first time in the remediation of phenanthrene (PHE) contaminated soil. The effects of environmental factors on the mobilization of PHE in soil by CNC nanofluid was investigated using factorial analysis. The results showed that temperature and ionic strength had a significant influence on PHE removal, which were associated with the viscosity and zeta potential change in the nanofluid. The analysis based on two-dimensional correlation spectroscopy integrated with FTIR and synchrotron-based XRF imaging revealed that metals and minerals in soil played important roles in PHE detachment. The hydroxyl groups on CNC bonded with Fe-O, Si-O, and Mn-O in soil as time went on, and eventually achieved PHE mobilization through the interruption of PHE/SOM-metal/mineral linkages. The complexation and transport of PHE/SOM-metals/minerals from soil particles to the aqueous phase could be the primary PHE removal mechanism. Besides, the biotoxicity study displayed a detoxification effect of CNC nanofluid on PHE contaminants in soil. This study offers new insight into a cost-effective and biodegradable nanocellulose washing agent, which can be a good alternative to the available site remediation options.
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Affiliation(s)
- Jianan Yin
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada
| | - Guohe Huang
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada.
| | - Chunjiang An
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada
| | - Peng Zhang
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada
| | - Xiaying Xin
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada
| | - Renfei Feng
- Canadian Light Source, Saskatoon, Saskatchewan, S7N 2V3, Canada
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22
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Hong JS, Bergfreund J, Fischer P. Complex emulsion stabilization behavior of clay particles and surfactants based on an interfacial rheological study. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Liu Z, Wang Q, Zhang B, Wu T, Li Y. Efficient Removal of Bisphenol A Using Nitrogen-Doped Graphene-Like Plates from Green Petroleum Coke. Molecules 2020; 25:E3543. [PMID: 32756422 PMCID: PMC7435634 DOI: 10.3390/molecules25153543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 12/07/2022] Open
Abstract
Green petroleum coke, a form of industrial waste produced in the oil-refining process, was used to synthesize nitrogen-doped graphene-like plates (N-GLPs) together with melamine. In this study, characterization and batch experiments were performed to elucidate the interaction mechanism of N-GLPs and bisphenol A (BPA). Structural analysis of N-GLPs, including scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET), and X-ray photoelectron spectroscopy (XPS), showed an obvious graphene-like structure and successful nitrogen doping. In addition, compared with 8.0 m2/g for green petroleum coke, the BET surface area of N-GLPs markedly increased to 96.6 m2/g. The influences of various factors, including contact time, temperature, and initial pH on BPA removal efficiency were investigated. It was found that 92.0% of BPA was successfully removed by N-GLPs at 50 °C. Based on the adsorption experiments, it was shown that electrostatic attraction, hydrogen bonding, and π-π interaction enhanced the adsorption capacity of N-GLPs for BPA. According to the thermodynamic data, the adsorption process was spontaneous, physical, and endothermic in nature. Therefore, N-GLPs are efficient adsorbent material to remove BPA from wastewater.
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Affiliation(s)
- Zhipeng Liu
- Shandong Provincial Research Center for Water Pollution Control, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China; (Z.L.); (B.Z.)
| | - Quanyong Wang
- China Urban Construction Design and Research Institute Co., Ltd., Jinan 250101, China;
| | - Bei Zhang
- Shandong Provincial Research Center for Water Pollution Control, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China; (Z.L.); (B.Z.)
| | - Tao Wu
- Key Laboratory of Colloid and Interface Science of Education Ministry, Shandong University, Jinan 250100, China
| | - Yujiang Li
- Shandong Provincial Research Center for Water Pollution Control, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China; (Z.L.); (B.Z.)
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24
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Huo L, Liu G, Yang X, Ahmad Z, Zhong H. Surfactant-enhanced aquifer remediation: Mechanisms, influences, limitations and the countermeasures. CHEMOSPHERE 2020; 252:126620. [PMID: 32443278 DOI: 10.1016/j.chemosphere.2020.126620] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
In recent years, surfactant-enhanced aquifer remediation (SEAR) has attracted increasing interest duo to the high efficiency of removing non-aqueous phase liquids (NAPLs) from aquifer. A thorough understanding of SEAR is necessary for its successful implementation in field remediation. This paper reviewed the SEAR technology in a comprehensive way based on the recent research advances. Firstly, an overview of the basic processes and mechanisms underlying the technology was presented. Secondly, applications of SEAR and the factors that influence the performance were summarized. Thirdly, the key limitations of SEAR, which are downward migration of dense-NAPLs, secondary pollution of surfactants, adsorptive, precipitative and partitioning loss of surfactants, and heterogeneity of the aquifer, were reviewed. Finally, the recent advances in modifying SEAR to overcome the limitations were discussed in detail. The review will promote our understanding of SEAR technology and provide some useful information to improve the performance of SEAR in applications.
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Affiliation(s)
- Lili Huo
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, PR China
| | - Guansheng Liu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, PR China
| | - Xin Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China
| | - Zulfiqar Ahmad
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, PR China
| | - Hua Zhong
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, PR China.
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25
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Hajieghrari M, Hejazi P. Enhanced biodegradation of n-Hexadecane in solid-phase of soil by employing immobilized Pseudomonas Aeruginosa on size-optimized coconut fibers. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:122134. [PMID: 32004840 DOI: 10.1016/j.jhazmat.2020.122134] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/07/2020] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
In this research, biodegradation of hexadecane as a model contaminant in solid soil using both free and immobilized Pseudomonas Aeruginosa, capable of producing biosurfactant, was investigated. Coconut fibers in three mesh sizes were used as a cellulosic biocarrier for immobilization procedure. Bioremediation experiments were monitored for 60 days after incubation at 27 °C in small columns, containing contaminated solid soil, with the capability of aeration from bottom to top. The difference in the number of immobilized bacteria cells on the fibers with different particle sizes, emphasizes the importance of choosing an optimized carrier size. Enhancement in hexadecane degradation up to 50 % at the end of experiments was achieved by immobilized Pseudomonas Aeruginosa on the fibers with a mesh size between 8 and 16 compared to inoculation of free bacteria cells into the soil. Effect of mixing the pretreated fibers with soil and inoculating free cells into this mixture was also investigated compared to free cell experiments without fiber, which led to 28 % decrease in hexadecane degradation. Obtained kinetic equations for experiments confirm the impact of immobilization of bacteria on the enhancement of biodegradation rate and reduction of the half-life of the contaminant is soil.
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Affiliation(s)
- Mahdiyeh Hajieghrari
- Biotechnology Research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Zip Code: 16846-13114, Tehran, Iran
| | - Parisa Hejazi
- Biotechnology Research Laboratory, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Zip Code: 16846-13114, Tehran, Iran.
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Abstract
The paper represents the research results for the process of crude oil-contaminated soil neutralization with the use of a neutralizer obtained on the basis ofhumic substances. Using physical methods (gas and liquid chromatography, fluorimetry, atomic absorption spectrometry, IR spectrometry), the element and group compositionswere determined for the crude oil-contaminated soil, neutralizer, and neutralized soil. Optimal parameters were determined for the process of the crude oil-contaminated soil neutralization under laboratory conditions:weight ratios of the crude oil-contaminated soil, neutralizer and water, and the temperature and neutralization process duration. The technological scheme was developed for the neutralization of the crude oil-contaminated soil in field conditions. It was found that low-boiling point hydrocarbon fractions (C12–C17) disappear completely at neutralization, the content of high-boiling point hydrocarbon fractions (C20–C23) is essentially increased, and the content of oil components and metals, including the toxic ones, is decreased. The engineering characteristics for nine mixtures of the stabilized soil, containing the neutralized soil, were evaluated under laboratory conditions and the conditions were determined for their use in road construction (with regard to road category, characteristic pavement layer, minimal air temperature). An experimental road section was constructed with the use of the stabilized soil with neutralized soil (40%).
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Ayele BA, Lu J, Chen Q. Optimization of aeration enhanced surfactant soil washing for remediation of diesel-contaminated soils using response surface methodology. PeerJ 2020; 8:e8578. [PMID: 32095374 PMCID: PMC7024577 DOI: 10.7717/peerj.8578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 01/16/2020] [Indexed: 12/23/2022] Open
Abstract
Surfactant-enhanced soil washing has been used for remediation of organic pollutants for an extended period, but its effectiveness and wide application was limited by the high concentration of surfactants utilized. In this work, the efficiency of conventional soil washing performance was enhanced by 12-25% through the incorporation of air bubbles into the low concentration surfactant soil washing system. Surfactant selection pre-experiment using aerated and conventional soil washing reveals Brij 35 > TX100 > Tween 80 > Saponin in diesel oil removal. Optimization of the effect of time, surfactant concentration, pH, agitation speed, and airflow rate in five levels were undertaken using Response Surface Methodology and Central composite design. The optimum degree of variables achieved was 90 min of washing time, 370 mg/l of concentration, washing pH of 10,535 rpm of agitation speed and 7.2 l/min of airflow rate with 79.5% diesel removal. The high predicted R 2 value of 0.9517 showed that the model could efficiently be used to predict diesel removal efficiency. The variation in efficiency of aeration assisted and conventional soil washing was variable depending on the type of surfactant, organic matter content of the soil, particle size distribution and level of pollutant weathering. The difference in removal efficiency of the two methods increases when the level of organic matter increases and when the particle size and age of contamination decreases.
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Affiliation(s)
- Befkadu Abayneh Ayele
- State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, P.R. China
- Department of Natural Resource Management, University of Gondar, Gondar, Ethiopia
| | - Jun Lu
- State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, P.R. China
| | - Quanyuan Chen
- State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, P.R. China
- Shanghai Institution of Pollution Control and Ecological Security, Shanghai, P.R. China
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28
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Highly efficient treatment of oily wastewater using magnetic carbon nanotubes/layered double hydroxides composites. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124187] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Fenibo EO, Ijoma GN, Selvarajan R, Chikere CB. Microbial Surfactants: The Next Generation Multifunctional Biomolecules for Applications in the Petroleum Industry and Its Associated Environmental Remediation. Microorganisms 2019; 7:E581. [PMID: 31752381 PMCID: PMC6920868 DOI: 10.3390/microorganisms7110581] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 11/30/2022] Open
Abstract
Surfactants are a broad category of tensio-active biomolecules with multifunctional properties applications in diverse industrial sectors and processes. Surfactants are produced synthetically and biologically. The biologically derived surfactants (biosurfactants) are produced from microorganisms, with Pseudomonas aeruginosa, Bacillus subtilis Candida albicans, and Acinetobacter calcoaceticus as dominant species. Rhamnolipids, sophorolipids, mannosylerithritol lipids, surfactin, and emulsan are well known in terms of their biotechnological applications. Biosurfactants can compete with synthetic surfactants in terms of performance, with established advantages over synthetic ones, including eco-friendliness, biodegradability, low toxicity, and stability over a wide variability of environmental factors. However, at present, synthetic surfactants are a preferred option in different industrial applications because of their availability in commercial quantities, unlike biosurfactants. The usage of synthetic surfactants introduces new species of recalcitrant pollutants into the environment and leads to undesired results when a wrong selection of surfactants is made. Substituting synthetic surfactants with biosurfactants resolves these drawbacks, thus interest has been intensified in biosurfactant applications in a wide range of industries hitherto considered as experimental fields. This review, therefore, intends to offer an overview of diverse applications in which biosurfactants have been found to be useful, with emphases on petroleum biotechnology, environmental remediation, and the agriculture sector. The application of biosurfactants in these settings would lead to industrial growth and environmental sustainability.
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Affiliation(s)
- Emmanuel O. Fenibo
- World Bank Africa Centre of Excellence, Centre for Oilfield Chemical Research, University of Port Harcourt, Port Harcourt 500272, Nigeria
| | - Grace N. Ijoma
- Institute for the Development of Energy for African Sustainability, University of South Africa, Roodepoort 1709, South Africa;
| | - Ramganesh Selvarajan
- Department of Environmental Science, University of South Africa, Florida Campus, Rooderpoort 1709, South Africa
| | - Chioma B. Chikere
- Department of Microbiology, Faculty of Science, University of Port Harcourt, Port Harcourt 500272, Nigeria;
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Menkiti N, Isanbor C, Ayejuyo O. The effect of organic cosolvent and solute–solvent interaction on the solubility of oil residue in Niger Delta soil. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00726-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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