Future Outlook of Green Ultrasonication and It is Environmental Applications – Review

ABSTRACT Ultrasound technology has evolved into a versatile and powerful tool across diverse scientific and industrial applications, ranging from wastewater treatment and bioresource extraction to heat transfer enhancement and advanced drying processes. The review elaborates on the physics of sound propagation, emphasizing piezoelectric and magnetostrictive transducer mechanisms responsible for ultrasonic wave generation. The review also highlights ultrasound's ability to operate synergistically with other advanced oxidation techniques such as Fenton's reagent, persulfate activation, and photo‐irradiation, thereby broadening its efficacy and adaptability. Ultrasonic‐assisted drying accelerates moisture removal from temperature‐sensitive biomaterials, such as fruits and vegetables, without compromising their nutritional quality. Ultrasonic waves modify reservoir conditions by reducing oil viscosity, removing scale, preventing paraffin deposition, and enhancing emulsification and demulsification processes. These effects culminate in improved flow properties and increased oil production rates. Finally, the review explores the impact of ultrasound on VOC degradation, where its high‐energy cavitational collapse allows pyrolytic breakdown of volatile pollutants in aqueous phases. Parameters such as Henry's law constant and aqueous diffusion coefficients govern mass transfer rates into cavitation bubbles, ultimately determining degradation efficiencies. In summary, ultrasound presents itself as a potent green technology capable of addressing multifaceted challenges in environmental remediation, chemical processing, and resource management. This review consolidates foundational theories, operational parameters, mechanistic pathways, and application‐specific case studies, establishing a robust framework for understanding and leveraging ultrasound technology for sustainable development across industrial and environmental platforms.