Photocatalytic degradation of recalcitrant aromatic hydrocarbon compounds in oilfield-produced water: A critical review

Samuel, Ojo; Othman, Mohd Hafiz Dzarfan; Kamaludin, Roziana; Dzinun, Hazlini; Imtiaz, Aniqa; Li, Tao; El-badawy, Tijjani; Khan, Asmat Ullah; Puteh, Mohd Hafiz; Yuliwati, Erna; Kurniawan, Tonni Agustiono

doi:10.1016/j.jclepro.2023.137567

Cited by 24 publications

(4 citation statements)

References 172 publications

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“…Cu was used as the X-ray source, with a voltage of 30 kV and a current of 30 mA. This analysis provided insights into the crystallinity of the structure and phase composition of the composite material [50].…”

Section: Characterization Of the Compositementioning

confidence: 99%

Fixed-Bed Studies of Landfill Leachate Treatment Using Chitosan-Coated Carbon Composite

Fatima

Kurniawan

Mohyuddin

et al. 2023

Water

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The feasibility of a chitosan-coated coconut-shell (CS) carbon composite for landfill leachate treatment in a fixed-bed study was investigated in terms of COD and NH3-N removal. The surface of the composite was characterized using SEM, FT-IR, and XRD to assess any changes before and after column operations. To enhance its cost-effectiveness, the saturated composite was regenerated using NaOH. The results showed that the composite had significantly better removal of both COD and NH3-N, as compared to CS and/or chitosan (p ≤ 0.05; ANOVA test), respectively. The breakthrough curve obtained from the fixed-bed studies exhibited an ideal “S” shape. The breakthrough points for the adsorbents followed the order of CS at BV 76 < chitosan at 200 BV < composite at BV 305. It was also found that a low flow rate and deeper bed depth of the packed adsorbent were necessary for achieving optimal column operations. The composite achieved 96% regeneration in the first cycle. However, even with the enhanced adsorption of target pollutants by the composite through chitosan coating, the treated effluents still could not meet the required COD and NH3-N effluent limits of less than 200 and 5 mg/L, respectively, as mandated by legislation. Nonetheless, the findings suggest that low-cost composites derived from unused resources can be employed as effective adsorbents for wastewater treatment.

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Section: Characterization Of the Compositementioning

confidence: 99%

Fixed-Bed Studies of Landfill Leachate Treatment Using Chitosan-Coated Carbon Composite

Fatima

Kurniawan

Mohyuddin

et al. 2023

Water

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“…Nevertheless, these methods often require a large amount of costs and complex operational requirements [12,13]. Among the employed remediation techniques, photocatalysis and adsorption stand out for their simplicity, environmental friendliness, and cost-effectiveness, rendering them particularly suitable for practical production [14][15][16]. The photocatalysis and adsorption purification processes are shown in figure 1.…”

Section: Introductionmentioning

confidence: 99%

Recent advances of silicate materials for wastewater treatment: a review

Xu,

Wang,

2024

Mater. Res. Express

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Heavy metal ions and organic pollutants cause irreversible damage to water environment, thereby posing significant threats to the well-being of organisms. The techniques of adsorption and photocatalytic degradation offer versatile solutions for addressing water pollution challenges, attributed to their inherent sustainability and adaptability. Silicates exhibit exceptional practicality in the realm of environmental protection owing to their structural integrity and robust chemical/thermal stability during hybridization and application process. Furthermore, the abundance of silicate reserves, coupled with their proven effectiveness, has garnered significant attention in recent years. This detailed review compiles and analyzes the extensive body of literature spanning the past six years (2018-2023), emphasizing the pivotal discoveries associated with employing silicates as water purification materials. This review article provides a comprehensive overview of the structure, classification, and chemical composition of diverse silicates and offers a thorough descriptive analysis of their performance in eliminating pollutants. Additionally, the utilization of diatomite as either precursors or substrates for silicates, along with the exploration of their corresponding purification mechanisms is discussed. The review unequivocally verifies the efficiency of silicates and their composites in the effective elimination of various toxic pollutants. However, the development of novel silicates capable of adapting to diverse environmental conditions to enhance pollution control, remains an urgent necessity.

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“…Therefore, an effective and accurate assessment of the biodegradation process, based on compound classification, is a prerequisite for the remediation of pollution remediation projects [24,25]. Another challenge in remediating oilfield leakage-type petroleum pollution is repeated contamination caused by prolonged oil extraction, which makes it difficult to accurately locate specific pollution sources in the subsurface environment [26,27].…”

Section: Introductionmentioning

confidence: 99%

Molecular Fingerprinting of the Biodegradation of Petroleum Organic Pollutants in Groundwater and under Site-Specific Environmental Impacts

Yang,

Yang

et al. 2024

Water

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A quantitative and qualitative assessment using molecular markers derived from compound-specific indices for indicating groundwater impacted by petroleum spills in an oil field was recently undertaken and demonstrated serious contamination, with both high total petroleum hydrocarbons (TPH) (3.68–7.32 mg/L) and hazardous compounds in the groundwater. A petroleum source was identified, and the analysis revealed a decreasing trend of fresh petroleum input, along with groundwater advection and an increasing trend of biodegradation potential at locations farther from the source. This was confirmed via microbial analysis with both biodegrading microorganisms and diversity indices (Shannon, Simpson, and Pielou) and the principal component analysis (PCA) modeling approach, which classified the field samples into three types according to the distribution correlations between different organic compounds. Biodegradation was believed to be the dominant sink of hydrocarbons due to the increasing Pr/C17 and Ph/C18 values with seasonal changes. Raised temperatures activated the microbial degradation process; specifically, low-weight hydrocarbons degraded more rapidly than high-weight hydrocarbons, resulting in the accumulation of an unresolved complex mixture of bioproducts at locations that were farther away. Spatially, the Pr/C17 and Ph/C18 values increased from the upstream to the downstream areas, showing substantial biodegradation. The relationships between the molecular markers and chemical indices were quantified via canonical correlation analysis (CCA) to visually explain the interactive reaction processes. It was also demonstrated that the biodegradation of petroleum organics can be characterized by the consumption of dissolved oxygen and a decreasing Pr/Ph ratio, due to system reduction. These results demonstrate that compound-specific molecular markers, coupled with biochemical parameters, can effectively support a better understanding and effective fingerprinting of the fate and transport of petroleum organic contaminants, thus offering valuable technical support for a cost-effective remediation strategy.

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Photocatalytic degradation of recalcitrant aromatic hydrocarbon compounds in oilfield-produced water: A critical review

Cited by 24 publications

References 172 publications

Fixed-Bed Studies of Landfill Leachate Treatment Using Chitosan-Coated Carbon Composite

Fixed-Bed Studies of Landfill Leachate Treatment Using Chitosan-Coated Carbon Composite

Recent advances of silicate materials for wastewater treatment: a review

Molecular Fingerprinting of the Biodegradation of Petroleum Organic Pollutants in Groundwater and under Site-Specific Environmental Impacts

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