A Review: Subcritical Water Extraction of Organic Pollutants from Environmental Matrices

A Review: Subcritical Water Extraction of Organic Pollutants from Environmental Matrices

3 January 2024 | Erdal Yabalak, Mohammad Tahir Aminzai, Ahmet Murat Gizir, Yu Yang
This review article provides an overview of subcritical water extraction (SBWE) as a method for extracting organic pollutants from environmental matrices. SBWE is highlighted as a promising green technique that uses water at critical temperatures and pressures to extract a wide range of organic pollutants, including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), pesticides, pharmaceuticals, and phthalates. The article discusses the advantages of SBWE, such as high extraction efficiency, rapid extraction, low process costs, and effectiveness on both polar and non-polar organic compounds. Key extraction parameters, including temperature, pressure, and time, are explored, and their impact on extraction efficiency and recovery are discussed. The review also compares SBWE with other conventional extraction methods, such as microwave-assisted extraction, Soxhlet extraction, and ultrasonic-assisted extraction, highlighting the superior performance of SBWE in terms of extraction efficiency and environmental friendliness. Finally, the article outlines future developments in SBWE technology, emphasizing the need for further research on organic solubility and decomposition under subcritical water conditions.This review article provides an overview of subcritical water extraction (SBWE) as a method for extracting organic pollutants from environmental matrices. SBWE is highlighted as a promising green technique that uses water at critical temperatures and pressures to extract a wide range of organic pollutants, including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), pesticides, pharmaceuticals, and phthalates. The article discusses the advantages of SBWE, such as high extraction efficiency, rapid extraction, low process costs, and effectiveness on both polar and non-polar organic compounds. Key extraction parameters, including temperature, pressure, and time, are explored, and their impact on extraction efficiency and recovery are discussed. The review also compares SBWE with other conventional extraction methods, such as microwave-assisted extraction, Soxhlet extraction, and ultrasonic-assisted extraction, highlighting the superior performance of SBWE in terms of extraction efficiency and environmental friendliness. Finally, the article outlines future developments in SBWE technology, emphasizing the need for further research on organic solubility and decomposition under subcritical water conditions.
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