Nashrieh Shimi va Mohandesi Shimi Iran

Nashrieh Shimi va Mohandesi Shimi Iran

A Review of Nanobubbles and Their Novel Applications: Performance Improvement and Efficiency Enhancement

Document Type : Review Article

Authors
Majid Mirzaee 1
Alimorad Rashidi 2
1 Non-metallic Materials Research Group, Niroo Research Institute, Tehran, I.R. IRAN
2 Nanotechnology & Carbon Research Group, Research Institute Petroleum Industry (RIPI), Tehran, I.R. IRAN
Abstract
Nanobubbles, as innovative structures in colloidal systems, have attracted significant industrial and research attention in recent years due to their high stability, extensive surface area, and unique physicochemical behavior. These nanoscale gas structures, which are classified into Surface NanoBubbles (SNBs) and Bulk NanoBubbles(BNBs), can be synthesized using various physical, chemical, and physicochemical methods. This article reviews nanobubble fabrication techniques while focusing on their emerging applications in the power plant industry, particularly their role in mitigating metal corrosion. Corrosion is a major challenge in power plant units, especially in acidic environments such as geothermal systems. Studies have demonstrated that injecting air nanobubbles into corrosive media can reduce steel corrosion rates by up to 50%. This protective effect is achieved through the formation of a nanoscale bubble-like layer on the metal surface and the accelerated accumulation of compounds such as silica in acidic environments. Furthermore, nanobubbles exhibit unique capabilities in other applications, including surface cleaning, fluid friction reduction, pollutant removal, and mineral flotation enhancement. The findings suggest promising new avenues for utilizing nanobubbles to improve efficiency, reduce maintenance costs, and enhance the durability of metal infrastructure in a power plant.
Keywords
Bulk nanobubbles
Surface nanobubble
Metal corrosion
Geothermal
Efficiency improvement

Subjects

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