Biofouling and Underwater Asset Management

Managing underwater assets is essential for ensuring their safety and long-term sustainability. This involves a variety of maintenance and cleaning activities that are typically done on an annual basis. Biofouling, or the accumulation of marine organisms such as algae, barnacles, and other microorganisms on the surface of vessel hulls, pipelines, buoys, and other immersed structures, is one of the critical issues faced in underwater asset management.

In this article, we will discuss the concept of biofouling and the impacts it has on underwater assets. We will also explore strategies currently used for managing biofouling and emerging technologies leading to further advancements in this field. Finally, we will include examples of successful case studies and best practices in underwater asset management strategies.

 

Understanding Biofouling

Biofouling can refer to the growth and accumulation of marine organisms on any submerged surface. This can cause numerous problems for underwater assets, ranging from increased drag, decreased structural integrity, and increased risk of corrosion and vessel instability. As these organisms grow, they form a film or coating on the surface that can interfere with their performance, leading to increased costs for businesses relying on these assets. Additionally, biofouling can reduce the efficiency of production processes by restricting the flow of fluids through pipes, causing damage to critical components, and triggering premature wear and tear on vessels.

The most common type of biofouling is caused by marine organisms such as algae, barnacles, molluscs, seaweed, and other types of macrofauna. These organisms attach themselves to the submerged surfaces due to their affinity for oxygen and the availability of food sources. They will grow and reproduce quickly, forming thick layers of organisms that can increase the drag of vessels and reduce their performance. The most commonly found organisms are harmless but can increase navigation, safety, and operations risks.

Impact on Underwater Assets

Biofouling can significantly impact underwater assets, increasing operational costs and degrading performance. The accumulation of organisms can cause drag on vessels, increasing fuel consumption and reducing the efficiency of operations. Additionally, they can interfere with the performance of vital systems such as engines, pumps, and other components. As the buildup of organisms increases, it can also lead to corrosion of metal surfaces due to the presence of electrolytes in their bodies. Lastly, the presence of these organisms can trigger the growth of other organisms that may be potentially hazardous, such as zebra mussels and toxic algae.

Current Management Strategies

Due to the abovementioned issues, biofouling management is essential to underwater asset management. Currently, several strategies are being used to address this issue. These include physical cleaning methods, such as abrasive brushes; chemical treatments, such as biocide applications; and mechanical treatments, such as dry ice or hot water. Additionally, various antifouling coatings are available to reduce or prevent organisms' buildup on surfaces.

Emerging Technologies for Biofouling Control

In recent years, a variety of emerging technologies have been developed that are aimed at controlling biofouling. These include using ultrasonic waves, ionized bubbles, and UV light to control the activity of marine organisms. The use of controlled currents and electrochemical means are also being explored. These methods are proving to be highly effective in controlling the growth of biofouling organisms while minimizing the costs associated with traditional cleaning and maintenance practices.

 

Case Studies and Best Practices

Several successful case studies have demonstrated the effectiveness of various biofouling management strategies. For instance, using several antifouling coatings has been proven to reduce the rate of sediment build-up on ship hulls and reduce the growth of various organisms. In addition, the controlled application of biocides can be used for targeted control of marine organisms while maintaining their safety for humans and wildlife.

Franmarine Underwater Services, based in Australia, is an excellent example of successful underwater asset management. Franmarine uses advanced software solutions to monitor the biofouling on its fleet of vessels. This enables them to keep track of changes in the environment and react swiftly to ensure the best possible performance of their ships. T

Conclusion

Biofouling is a severe issue for many businesses that rely on underwater assets. By understanding the concept of biofouling and its various impacts, businesses can take proactive steps towards managing the issue. Current management strategies focus on physical, chemical, and mechanical approaches while emerging technologies are beginning to offer more effective solutions. Case studies and best practices in this field can also help companies determine the best approach for their operations. With the right strategies and technologies, businesses can ensure that their underwater assets remain safe and efficient for many years.