Oil pollution removal using g-C3N4/PEG nanocomposite in the presence of bacterial consortium isolated from contaminated areas: optimization Study

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2025-01-16 DOI:10.1007/s13762-024-06307-y

S. Taleshpur, L. Taghavi, H. F. Farahani, B. Rasekh, S. Bazgir

{"title":"Oil pollution removal using g-C3N4/PEG nanocomposite in the presence of bacterial consortium isolated from contaminated areas: optimization Study","authors":"S. Taleshpur, L. Taghavi, H. F. Farahani, B. Rasekh, S. Bazgir","doi":"10.1007/s13762-024-06307-y","DOIUrl":null,"url":null,"abstract":"<div>Water pollution with oil compounds has led to the development of new technologies for the removal of oil pollution. This study aims to investigate and optimize oil pollutant (C16) removal using a polyethylene-functionalized graphitic carbon nitride (g-C3N4/PEG) nanocomposite in the presence of a bacterial consortium isolated from contaminated areas. To investigate optimal conditions for C16 removal, samples were collected from three stations in the northwestern catchment area of Iran contaminated with oil compounds. Two effective operating parameters the oil pollutant removal, pH and time (day), were optimized by the response surface method (RSM). The synthesized nanocomposite was characterized with FTIR, XRD, SEM, and EDX characterization tests. The C16 removal rate was examined by evaporation and gas chromatography (GC) in the presence of g-C3N4-non-functionalized and g-C3N4/PEG-functionalized. Next Generation Sequencing) NGS (was used for 16S rRNA sequencing and bacteria variant/abundance detection. FTIR and XRD results confirmed the hydrogen bond between g-C3N4 and PEG. The morphology of planar and porous g-C3N4 structures were determined. The nanoscale dimensions of g-C3N4 plates were in the range of 175–118 nm. According to the results NGS, Pseudomonas aeruginosa, showed the highest frequency (90%). The value of p-value is less than 0.05 (p < 0.05) for time term (day), and this parameter for g-C3N4/PEG affects the oil pollutant removal percentage. In the presence of the g-C3N4/PEG, the C16 removal rate increased by 68.67% within 15 days. The evaporation removal results showed a higher rate with the g-C3N4/PEG, indicating the effect of the PEG agent on increasing the C16 removal process. In the GC method, the C16 removal rates in the presence of the g-C3N4/PEG and bacteria were 29.44% and 31% after 9 and 12 days, respectively. Due to the ability of bacteria in C16 biodegradation, these bacteria can be a suitable choice for industrial use in the biodegradation process of oil pollutants in harsh conditions.<h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 9","pages":"7533 - 7550"},"PeriodicalIF":3.0000,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Environmental Science and Technology","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s13762-024-06307-y","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Water pollution with oil compounds has led to the development of new technologies for the removal of oil pollution. This study aims to investigate and optimize oil pollutant (C₁₆) removal using a polyethylene-functionalized graphitic carbon nitride (g-C₃N₄/PEG) nanocomposite in the presence of a bacterial consortium isolated from contaminated areas. To investigate optimal conditions for C₁₆ removal, samples were collected from three stations in the northwestern catchment area of Iran contaminated with oil compounds. Two effective operating parameters the oil pollutant removal, pH and time (day), were optimized by the response surface method (RSM). The synthesized nanocomposite was characterized with FTIR, XRD, SEM, and EDX characterization tests. The C₁₆ removal rate was examined by evaporation and gas chromatography (GC) in the presence of g-C₃N₄-non-functionalized and g-C₃N₄/PEG-functionalized. Next Generation Sequencing) NGS (was used for 16S rRNA sequencing and bacteria variant/abundance detection. FTIR and XRD results confirmed the hydrogen bond between g-C₃N₄ and PEG. The morphology of planar and porous g-C₃N₄ structures were determined. The nanoscale dimensions of g-C₃N₄ plates were in the range of 175–118 nm. According to the results NGS, Pseudomonas aeruginosa, showed the highest frequency (90%). The value of p-value is less than 0.05 (p < 0.05) for time term (day), and this parameter for g-C3N4/PEG affects the oil pollutant removal percentage. In the presence of the g-C₃N₄/PEG, the C₁₆ removal rate increased by 68.67% within 15 days. The evaporation removal results showed a higher rate with the g-C₃N₄/PEG, indicating the effect of the PEG agent on increasing the C₁₆ removal process. In the GC method, the C₁₆ removal rates in the presence of the g-C₃N₄/PEG and bacteria were 29.44% and 31% after 9 and 12 days, respectively. Due to the ability of bacteria in C₁₆ biodegradation, these bacteria can be a suitable choice for industrial use in the biodegradation process of oil pollutants in harsh conditions.

Graphical abstract

查看原文本刊更多论文

g-C3N4/PEG纳米复合材料在污染区细菌群存在下去除石油污染：优化研究

油类化合物对水体的污染导致了新的除油技术的发展。本研究旨在研究并优化聚乙烯功能化石墨氮化碳（g-C3N4/PEG）纳米复合材料在污染区域分离细菌群存在下去除石油污染物（C16）的效果。为了探索去除C16的最佳条件，在伊朗西北部集水区的三个站点采集了受石油化合物污染的样本。采用响应面法（RSM）对pH值和时间（天）这两个有效的操作参数进行了优化。采用FTIR、XRD、SEM和EDX对合成的纳米复合材料进行了表征。采用蒸发和气相色谱法（GC）考察了g-C3N4非功能化和g-C3N4/ peg功能化两种化合物对C16的去除率。下一代测序（NGS）用于16S rRNA测序和细菌变异/丰度检测。FTIR和XRD结果证实了g-C3N4与PEG之间存在氢键。测定了g-C3N4的平面结构和多孔结构的形貌。g-C3N4片的纳米尺度在175 ~ 118 nm之间。结果显示，NGS以铜绿假单胞菌（Pseudomonas aeruginosa）感染率最高（90%）。时间周期（天）p值小于0.05 (p < 0.05)，该参数对g-C3N4/PEG的油污染物去除率有影响。在g-C3N4/PEG存在的情况下，C16去除率在15 d内提高了68.67%。g-C3N4/PEG对C16的蒸发去除率较高，说明PEG对C16的去除率有提高作用。在GC法中，在g-C3N4/PEG和细菌存在下，C16的去除率分别为29.44%和31%。由于细菌对C16的生物降解能力，这些细菌可以在恶劣条件下的石油污染物的生物降解过程中成为工业应用的合适选择。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.