.truncate { white-space: nowrap; text-overflow: ellipsis; }

With the new regulations being adopted by the IMO in 2023 regarding decarbonization through ship emissions, a trusted underwater service partner who can deliver reliable biofouling removal around the globe will be paramount to ensure your vessel remains in the acceptable range of A,B, or C.

According to the International Council on Clean Transportation (ICCT), hull cleaning can reduce gas emissions in a range of 1%-10%. The same can be said for propeller polishing which can reduce gas emissions by 2% - 5% and when executed on a regular periodical basis; 2.5% - 8%. With the new regulations being adopted by the IMO in 2023 regarding decarbonization through ship emissions, a trusted underwater service partner who can deliver reliable services around the globe will be paramount to ensure your vessel performance remains in the Carbon Intensity Index (CII) acceptable range of A,B, or C.  Subsea Global Solutions has several solutions available for Biofouling/Coating Management, Environmentally Friendly Hull maintenance and Propeller Polishing.

Regulatory Procedures of Biofouling Management, Hull Cleaning and Propeller Maintenance

Subsea Global Solutions understands the constraints established by regulatory bodies around the world. We develop biofouling and maintenance management procedures that comply with the requirements of the local port, individual state or international environmental regulatory bodies.

Subsea Global Solutions has developed Biofouling Management Plans as well as Ship Hull Cleaning and Propeller Maintenance management procedures for locations that previously banned this type of service. By addressing the concerns raised by the regulatory bodies and putting in mitigation plans, Subsea Global Solutions has been granted procedure approval for the hull maintenance of some coatings with vessels that are managed as a part of our Fuel Management Program; assuring minimal fouling (micro-fouling only).

Subsea Global Solutions has also worked closely with regulators in New Zealand to develop Niche Cleaning Processes as well as approved biofouling and niche area inspection reports that can be used as documented evidence of Niche Area Inspections performed according to recently established guidelines.  By managing the vessels biofouling, and the hull and propeller maintenance, Subsea Global Solutions is able to provide an approved maintenance program that drives down an operator's operating cost and improves vessel efficiency.

Have an underwater maintenance or repair service request?

Subsea Global Solutions provide underwater maintenance and repair services to your marine assets. Contact us to request a service quote today!
Request Service

EnviroHull Filtration System

For locations with regulations focused on Aquatic Invasive Species (IAS) and the release of particulates to the environment, Subsea Global Solutions developed the EnviroHull. It features a spoils recovery vacuum system and spoils filtration system that processes the water on the surface in a contained system and returns filtered water back to the environment.  This system has been tested successfully in Alameda, California and is also approved for use in Busan, South Korea. The EnviroHull system is a multi-stage filtration system capable of operating continuously during underwater hull cleaning, niche area cleaning or propeller polishing. The EnviroHull system is always considered for locations that require biofouling management, hull cleaning spoils recovery, and particulate matter filtration.  The EnviroHull technology is compact, simple and easy to operate in either a trailer mounted or vessel mounted configuration.

Overhauling demountable thrusters, commercial diving solutions, offshore semi-sub drillship

Offshore Asset Maintenance, biofouling and repositioning support

Enjoy our short trailer on Offshore Asset Maintenance services.

Got heavy biofouling? You need a PORTABLE C-ROV!

Enjoy our short trailer on our Cleaning Remote Operated Vehicle, the PORTABLE C-ROV, ideally suited for heavier macrofouling before repositioning your vessel or offshore asset.

Overhauling demountable thrusters, commercial diving solutions, offshore semi-sub drillship

Case Studies

Skeg Ripped from Azipod

3 month out of dry dock, galvanic corrosion caused heavy cavitation/erosion damage on PORT and STBD side rudders.

View Full Case Study

Hull Breach on Tanker

During cargo operations, a submerged pile pierced through the hull. Subsea Global Solutions worked together with owner and class to develop repair plan that included the design and installation of an engineered cofferdam.

View Full Case Study

Offshore Oil and Gas

A Blue-Chip oil & gas company incurred several defects and cracks in a critical attachment member of an FPSO’s hull – these defects required repair to allow continued operation.

View Full Case Study

Bilge Keel Repair on FPSO

Design flaws together with poor workmanship caused the bilge keel to fracture during operation in several locations. Subsea Global Solutions worked together with the owner and Class to perform permanent underwater wet weld repair on the fractures, without interrupting the production.

View Full Case Study

Oil Leak Repair – August 2017

Subsea Global Solutions Halifax received an emergency call recently that a ferry in a remote part of Northeastern Canada was experiencing an oil leak in the port stern tube. Our crew was quickly assembled and dispatched to the vessel to diagnose and repair the cause of the leak.

View Full Case Study

Subsea Global Solutions Removes Anchor Chain Debris Before Vessel's Planned Departure

Once the port anchor began its ascent, the hawser line gave way and started to rise, but it was found to be a much heavier load—requiring the use of the workboat’s hydraulic crane.

View Full Case Study

Double Bow Thruster Removal by Subsea Global Solutions

The benefits of removing a damaged bow thruster afloat are many. The customer was able to prevent further damage to the bearings and gears caused by the presence of seawater in the gear housing and the procedures allows the units to be overhauled prior to the vessels next dry-dock—or, they can be re-installed afloat by Subsea Global Solutions, which would help to eliminate the need for additional tug cost.

View Full Case Study

Afloat Bow Thruster Blade Seal Exchange by Subsea Global Solutions

The project was executed with two Subsea Global Solutions teams working around the clock. While the vessel trimming process was in motion, the team onboard the vessel began to drain the oil from the thruster while the dive team began removing the bow thruster tunnel gratings to gain full access to the bow thruster.

View Full Case Study

Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

View Full Case Study

Scrubber Installation Without Dry Docking

The year 2020, and with it the Sulphur regulation for the use of heavy Sulphur fuel oil, is approaching fast. Starting January 2020, it will be illegal to run a ship using fuel containing more than 0.5% Sulphur without the operation of a scrubber, an exhaust cleaning gas system.

View Full Case Study

DryDock Magazine Interview - The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

Subsea Global Solutions solves serious problems: Assisting a large, fully laden post-Panamax container vessel with steering issues

Subsea Global Solutions solves serious problems: Assisting a large fully laden Post-Panamax container vessel with steering issues. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water float out removal, repair, and refit of a 110 mt rudder. Find out how our underwater inspection and survey services deliver practical, cost-effective solutions to a complex offshore problem. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water rudder float out removal, repair, and refit of a 110 mt rudder. Helping owners safely reduce their risk exposure and related costs that would include diversions, delays, and downtime.

View Full Case Study

Galvanic Corrosion damage on Rudders

3 months out of dry dock, galvanic corrosion caused heavy cavitation/ erosion damage on PORT and STBD side rudders.

View Full Case Study

Subsea Global Solutions delivers marine dredging project to improve mooring access

Another happy client back to business: 3800 CPM of sand & silt dredged in a short time window, and under budget! Read the full case study here.

View Full Case Study

Underwater Propeller Blade Straightening & Cold Static Loading

Subsea Global Solutions can restore your propeller blades as a permanent repair, to OEM design geometry by cold static loading with our underwater propeller blade press.

View Full Case Study

Subsea Global Solutions Replaces Propeller Blades After Contact Damage

Subsea Global Solutions started its underwater repair process by establishing load-rated rigging points above the propeller using 4F Class A wet welding procedures to allow safe new replacement propeller blade transfer of the propeller blades.

View Full Case Study

Propeller Repairs – Worldwide – March 2018

Over the past few months, Subsea Global Solutions has been called on to complete propeller straightening’s and repairs all over the world, including – Canada, Panama, Uruguay, Singapore, and El Salvador. In each case, a team of highly trained Subsea Global Solutions Diver / Propeller Technicians attended the vessel, along with our proprietary large or small propeller press (depending on the job scope) and propeller sectional reduction / optimization gear.

View Full Case Study

Propellers: How Smooth is Smooth?

By utilizing a multi-stage polishing process and diver / technicians trained in the proper analysis of the propeller condition, Subsea Global Solutions' process has proven to be an integral part of fuel efficiency programs. The benefits of maintaining a polished propeller have been known for years, but what has not been known is "how smooth is smooth"?

View Full Case Study

Focus On: Underwater Seal Replacement

Over the past few months of 2019, Subsea Global Solutions has performed a number of high-capacity underwater repairs across the globe. A great number of these repairs have focused on seal replacement.

View Full Case Study

Twin Shaft Seal Repair – South Pacific

As part of the cruise industry’s focus on the environment, a vessel operating in the South Pacific developed a minor problem with both of its shaft seals.

View Full Case Study

Stern Seal Repair – Romania

Back in November, a fully loaded bulk carrier contacted Subsea Global Solutions with a shaft seal issue. Initial reports from the vessel were that they were losing all stern tube oil into the vessel, they were experiencing heavy water ingress through the FWD seal system into the engine room, and the internal seal system clamp ring shifted approximately 70mm inboard.

View Full Case Study

Offshore installation, underwater shell plate damage, class approved repair without drydocking

Class approved shell plate underwater damage repairs to offshore semi-submersible platform without drydocking.

View Full Case Study

DryDock Magazine Interview - The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

View Full Case Study

Hull Breach on Tanker

During cargo operations, a submerged pile pierced through the hull. Subsea Global Solutions worked together with owner and class to develop repair plan that included the design and installation of an engineered cofferdam.

View Full Case Study

Offshore Oil and Gas

A Blue-Chip oil & gas company incurred several defects and cracks in a critical attachment member of an FPSO’s hull – these defects required repair to allow continued operation.

View Full Case Study

Bilge Keel Repair on FPSO

Design flaws together with poor workmanship caused the bilge keel to fracture during operation in several locations. Subsea Global Solutions worked together with the owner and Class to perform permanent underwater wet weld repair on the fractures, without interrupting the production.

View Full Case Study

Focus On: Underwater Seal Replacement

Over the past few months of 2019, Subsea Global Solutions has performed a number of high-capacity underwater repairs across the globe. A great number of these repairs have focused on seal replacement.

View Full Case Study

Twin Shaft Seal Repair – South Pacific

As part of the cruise industry’s focus on the environment, a vessel operating in the South Pacific developed a minor problem with both of its shaft seals.

View Full Case Study

Biofouling Cleaning Campaign – Korea-Oct 2017

Earlier this year, Subsea Global Solution’s office in Busan, Korea completed a biofouling cleaning campaign on one of the largest vessels in the world. A floating liquified natural gas (FLNG) vessel – with an LOA of 488m – it was launched in 2013 and took almost four years to complete, whereby the vessel’s hull had expectedly collected a significant amount of fouling.

View Full Case Study

DryDock Magazine Interview - The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

View Full Case Study

Skeg Ripped from Azipod

3 month out of dry dock, galvanic corrosion caused heavy cavitation/erosion damage on PORT and STBD side rudders.

View Full Case Study

Underwater Propeller Blade Straightening & Cold Static Loading

Subsea Global Solutions can restore your propeller blades as a permanent repair, to OEM design geometry by cold static loading with our underwater propeller blade press.

View Full Case Study

Double Bow Thruster Removal by Subsea Global Solutions

The benefits of removing a damaged bow thruster afloat are many. The customer was able to prevent further damage to the bearings and gears caused by the presence of seawater in the gear housing and the procedures allows the units to be overhauled prior to the vessels next dry-dock—or, they can be re-installed afloat by Subsea Global Solutions, which would help to eliminate the need for additional tug cost.

View Full Case Study

Afloat Bow Thruster Blade Seal Exchange by Subsea Global Solutions

The project was executed with two Subsea Global Solutions teams working around the clock. While the vessel trimming process was in motion, the team onboard the vessel began to drain the oil from the thruster while the dive team began removing the bow thruster tunnel gratings to gain full access to the bow thruster.

View Full Case Study

Subsea Global Solutions Replaces Propeller Blades After Contact Damage

Subsea Global Solutions started its underwater repair process by establishing load-rated rigging points above the propeller using 4F Class A wet welding procedures to allow safe new replacement propeller blade transfer of the propeller blades.

View Full Case Study

Focus On: Underwater Seal Replacement

Over the past few months of 2019, Subsea Global Solutions has performed a number of high-capacity underwater repairs across the globe. A great number of these repairs have focused on seal replacement.

View Full Case Study

No solution? Think again! – Aft shaft bearing repair, Hong Kong – April 2018

A deep-sea bulk carrier fully loaded with goods had become immobilized due to a failure of the aft shaft bearing. In the past, not much could be done to help a vessel in this situation. With no way to transit on its own power and loaded with a perishable cargo, an economical solution needed to be developed quickly.

View Full Case Study

Propeller Repairs – Worldwide – March 2018

Over the past few months, Subsea Global Solutions has been called on to complete propeller straightening’s and repairs all over the world, including – Canada, Panama, Uruguay, Singapore, and El Salvador. In each case, a team of highly trained Subsea Global Solutions Diver / Propeller Technicians attended the vessel, along with our proprietary large or small propeller press (depending on the job scope) and propeller sectional reduction / optimization gear.

View Full Case Study

Twin Shaft Seal Repair – South Pacific

As part of the cruise industry’s focus on the environment, a vessel operating in the South Pacific developed a minor problem with both of its shaft seals.

View Full Case Study

Biofouling Cleaning Campaign – Korea-Oct 2017

Earlier this year, Subsea Global Solution’s office in Busan, Korea completed a biofouling cleaning campaign on one of the largest vessels in the world. A floating liquified natural gas (FLNG) vessel – with an LOA of 488m – it was launched in 2013 and took almost four years to complete, whereby the vessel’s hull had expectedly collected a significant amount of fouling.

View Full Case Study

DryDock Magazine Interview - The Big 3Rs of Rudder Repairs Afloat

DryDock Magazine recently interviewed Harun (Aaron) Duzgoren (CCO), and Kevin Peters (Director, Technical Sales & Environmental Services) about a significant 100+ tonne rudder repair operation carried out afloat on a fully laden mainline container vessel.

View Full Case Study

Subsea Global Solutions solves serious problems: Assisting a large, fully laden post-Panamax container vessel with steering issues

Subsea Global Solutions solves serious problems: Assisting a large fully laden Post-Panamax container vessel with steering issues. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water float out removal, repair, and refit of a 110 mt rudder. Find out how our underwater inspection and survey services deliver practical, cost-effective solutions to a complex offshore problem. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water rudder float out removal, repair, and refit of a 110 mt rudder. Helping owners safely reduce their risk exposure and related costs that would include diversions, delays, and downtime.

View Full Case Study

Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

View Full Case Study

Galvanic Corrosion damage on Rudders

3 months out of dry dock, galvanic corrosion caused heavy cavitation/ erosion damage on PORT and STBD side rudders.

View Full Case Study

Skeg Ripped from Azipod

3 month out of dry dock, galvanic corrosion caused heavy cavitation/erosion damage on PORT and STBD side rudders.

View Full Case Study

Hull Breach on Tanker

During cargo operations, a submerged pile pierced through the hull. Subsea Global Solutions worked together with owner and class to develop repair plan that included the design and installation of an engineered cofferdam.

View Full Case Study

Underwater Propeller Blade Straightening & Cold Static Loading

Subsea Global Solutions can restore your propeller blades as a permanent repair, to OEM design geometry by cold static loading with our underwater propeller blade press.

View Full Case Study

Bilge Keel Repair on FPSO

Design flaws together with poor workmanship caused the bilge keel to fracture during operation in several locations. Subsea Global Solutions worked together with the owner and Class to perform permanent underwater wet weld repair on the fractures, without interrupting the production.

View Full Case Study

Subsea Global Solutions Reseats Shifted Tailshaft Afloat and Executes a Stern Seal Repair

The client indicated that the tailshaft had shifted aft approximately 200 mm when the ship’s crew was doing maintenance on the shaft coupling. It resulted in the aft water seal losing contact with the liner, causing large amounts of water ingress into the stern tube.

View Full Case Study

Double Bow Thruster Removal by Subsea Global Solutions

The benefits of removing a damaged bow thruster afloat are many. The customer was able to prevent further damage to the bearings and gears caused by the presence of seawater in the gear housing and the procedures allows the units to be overhauled prior to the vessels next dry-dock—or, they can be re-installed afloat by Subsea Global Solutions, which would help to eliminate the need for additional tug cost.

View Full Case Study

Afloat Bow Thruster Blade Seal Exchange by Subsea Global Solutions

The project was executed with two Subsea Global Solutions teams working around the clock. While the vessel trimming process was in motion, the team onboard the vessel began to drain the oil from the thruster while the dive team began removing the bow thruster tunnel gratings to gain full access to the bow thruster.

View Full Case Study

A Turn-Key SOx Scrubber Spool Pipe Replacement by Subsea Global Solutions, with a 5-Year Coating Warranty

The client was in need of a turn-key—class approved—permanent repair. This included a single contractor that would manage the internal technical repair team, commercial diver team, prefabrication of the new spool pieces with flanges, final application of the 5-year warranty POLYFLAKE protective coating to 3000 microns on the new spool pipes, and achieving final class approval for the full repair procedure.

View Full Case Study

Subsea Global Solutions Repairs Hull Fracture in way of Bilge Keel

We began the operation inside the vessel by templating the immediate area of the hull around the existing fracture. The hull templating serves two purposes, it tells the size and geometry of the insert plate and it provides us with the surface area and geometry needed to fabricate the cofferdam onsite.

View Full Case Study

Subsea Global Solutions Completes an Afloat Rudder Stock Seal Replacement

This complex underwater repair was completed to the client's satisfaction in 5 days in conjunction with various other repair works. Subsea Global Solutions managed both the underwater and internal portions of this repair to ensure each phase was executed seamlessly.

View Full Case Study

Subsea Global Solutions Restores Heavily Corroded Rudder

The repair was based on underwater welding only, eliminating the need for the installation of open top cofferdams or other barriers that would allow dry welding repairs to take place, which requires more time and resources. Subsea Global Solutions Long Beach mobilized two 5-man teams of commercial divers and welder divers to operate around the clock during cargo operations until the underwater repair was concluded.

View Full Case Study

Subsea Global Solutions Replaces Propeller Blades After Contact Damage

Subsea Global Solutions started its underwater repair process by establishing load-rated rigging points above the propeller using 4F Class A wet welding procedures to allow safe new replacement propeller blade transfer of the propeller blades.

View Full Case Study

Focus On: Underwater Seal Replacement

Over the past few months of 2019, Subsea Global Solutions has performed a number of high-capacity underwater repairs across the globe. A great number of these repairs have focused on seal replacement.

View Full Case Study

No solution? Think again! – Aft shaft bearing repair, Hong Kong – April 2018

A deep-sea bulk carrier fully loaded with goods had become immobilized due to a failure of the aft shaft bearing. In the past, not much could be done to help a vessel in this situation. With no way to transit on its own power and loaded with a perishable cargo, an economical solution needed to be developed quickly.

View Full Case Study

Propeller Repairs – Worldwide – March 2018

Over the past few months, Subsea Global Solutions has been called on to complete propeller straightening’s and repairs all over the world, including – Canada, Panama, Uruguay, Singapore, and El Salvador. In each case, a team of highly trained Subsea Global Solutions Diver / Propeller Technicians attended the vessel, along with our proprietary large or small propeller press (depending on the job scope) and propeller sectional reduction / optimization gear.

View Full Case Study

Twin Shaft Seal Repair – South Pacific

As part of the cruise industry’s focus on the environment, a vessel operating in the South Pacific developed a minor problem with both of its shaft seals.

View Full Case Study

Stern Seal Repair – Romania

Back in November, a fully loaded bulk carrier contacted Subsea Global Solutions with a shaft seal issue. Initial reports from the vessel were that they were losing all stern tube oil into the vessel, they were experiencing heavy water ingress through the FWD seal system into the engine room, and the internal seal system clamp ring shifted approximately 70mm inboard.

View Full Case Study

Biofouling Cleaning Campaign – Korea-Oct 2017

Earlier this year, Subsea Global Solution’s office in Busan, Korea completed a biofouling cleaning campaign on one of the largest vessels in the world. A floating liquified natural gas (FLNG) vessel – with an LOA of 488m – it was launched in 2013 and took almost four years to complete, whereby the vessel’s hull had expectedly collected a significant amount of fouling.

View Full Case Study

Oil Leak Repair – August 2017

Subsea Global Solutions Halifax received an emergency call recently that a ferry in a remote part of Northeastern Canada was experiencing an oil leak in the port stern tube. Our crew was quickly assembled and dispatched to the vessel to diagnose and repair the cause of the leak.

View Full Case Study

Subsea Global Solutions delivers marine dredging project to improve mooring access

Another happy client back to business: 3800 CPM of sand & silt dredged in a short time window, and under budget! Read the full case study here.

View Full Case Study

Cleaning ROV (C-ROV) Systems

For locations where diver operated systems are considered unsuitable, Subsea Global Solutions operates remote operated vehicles, simply called the cleaning ROV, or C-ROV/CROV for short.  There are two main in-house designed and built systems currently used, which comply with local authority requirements and regulations.

ECOFRIENDLY C-ROV, uses filtration systems with low- and high-pressure filtration, and UV treatment.  These are designed for elimination of biofouling and prevent aquatic invasive species transfer, the systems use a reclaim system for in-water cleaning and capture (IWCC), with multi-stage filtration of particulate matter down to 1 micron and render waste effluent “inert” prior to cleaned water return.  The biofouling waste retrieved is recycled within a certified biomass to biofuel process.  To comply with our own internal policies periodical water sampling is also undertaken, with samples evaluated by external certified analysis.  This configuration is medium truck transportable, and can be run from quayside, workboat or barge mounted - making it suitable for regional use if required.

PORTABLE C-ROV, this highly portable and air transportable variant forgoes the reclaim system as these are deployed to clean vessels and vessel-like structures on location, before they move, these units are also capable of cleaning heavy macrofouling. Typically deployed for offshore units like semi-submersibles, Floating Production Storage and Offtake (FPSO) and FSO’s, their high-definition real-time video also acts as part of an underwater inspection team when deployed with our Observation ROV’s which are able to access niche areas underwater, or as part of a combined ROV and diver project team.

Whale Shark Filtration and Water Treatment System

For locations with regulations focused on invasive species and the potential release to the Environment of matter in either a particulate or solution form, Whale Shark Technologies LTD (WET) (a Wholly owned Engineering company of Subsea Global Solutions) has developed the Whale Shark.  It features a spoils recovery vacuum system, spoils filtration system and water treatment system that extracts metals from solution.  Once water passes through Whale Shark, filtered and treated water returns to the environment. This system has been developed and is being tested with good success in Vancouver Canada, impaired water-ways in Baltimore, MD, Alameda and Oakland California, as the only participant in the US Government sponsored IWCC (In-Water Cleaning and Capture Technology) study.

The Whale Shark system is a multistage mechanical filtration system combined with a water treatment plant capable of operating continuously during Hull cleaning operations.  The system has the capability to filter particulates in solution down to 1 micron and remove soluble metals (like copper and zinc) in solution. The Whale shark system should be considered for locations that require biofouling management, Hull Cleaning, spoils recovery with particulate filtration, and water treatment to reduce or eliminate all metals (particulate or soluble) released during underwater hull Cleaning or propeller maintenance from re-entering into the environment.  This system requires a large truck-based trailer or barge mounted configuration which makes it suitable for regional use if required.

Beluga Eco-friendly Propeller Polishing and Niche Area Cleaning System

The Beluga Eco-friendly cleaning system was designed to manage the ever increasing threat of invasive species and—if needed, to also treat soluble metals that may be present in effluent water. With filtration capabilities currently down to 5 microns, the Beluga system has interchangeable tools that can be connected to it for the execution of hull niche area cleaning or eco-friendly propeller polishing.

Underwater Hull Cleaning, Hull Grooming, & Niche Area Cleaning

Hull Cleaning

According to the International Council on Clean Transportation (ICCT), hull cleaning can reduce gas emissions in a range of 1%-10%. The same can be said for propeller polishing which can reduce gas emissions by 2% - 5% and when executed on a regular periodical basis; 2.5% - 8%. With the new regulations being adopted by the IMO in 2023 regarding decarbonization through ship emissions, a trusted underwater service partner who can deliver reliable services around the globe will be paramount to ensure your vessel performance remains in the Carbon Intensity Index (CII) acceptable range of A,B, or C.  Subsea Global Solutions has several solutions available for Biofouling/Coating Management, Environmentally Friendly Hull maintenance and Propeller Polishing.

Regulatory Procedures of Biofouling Management, Hull Cleaning and Propeller Maintenance

Subsea Global Solutions understands the constraints established by regulatory bodies around the world. We develop biofouling and maintenance management procedures that comply with the requirements of the local port, individual state or international environmental regulatory bodies.

Subsea Global Solutions has developed Biofouling Management Plans as well as Ship Hull Cleaning and Propeller Maintenance management procedures for locations that previously banned this type of service. By addressing the concerns raised by the regulatory bodies and putting in mitigation plans, Subsea Global Solutions has been granted procedure approval for the hull maintenance of some coatings with vessels that are managed as a part of our Fuel Management Program; assuring minimal fouling (micro-fouling only).

Subsea Global Solutions has also worked closely with regulators in New Zealand to develop Niche Cleaning Processes as well as approved biofouling and niche area inspection reports that can be used as documented evidence of Niche Area Inspections performed according to recently established guidelines.  By managing the vessels biofouling, and the hull and propeller maintenance, Subsea Global Solutions is able to provide an approved maintenance program that drives down an operator's operating cost and improves vessel efficiency.

EnviroHull Filtration System

For locations with regulations focused on Aquatic Invasive Species (IAS) and the release of particulates to the environment, Subsea Global Solutions developed the EnviroHull. It features a spoils recovery vacuum system and spoils filtration system that processes the water on the surface in a contained system and returns filtered water back to the environment.  This system has been tested successfully in Alameda, California and is also approved for use in Busan, South Korea. The EnviroHull system is a multi-stage filtration system capable of operating continuously during underwater hull cleaning, niche area cleaning or propeller polishing. The EnviroHull system is always considered for locations that require biofouling management, hull cleaning spoils recovery, and particulate matter filtration.  The EnviroHull technology is compact, simple and easy to operate in either a trailer mounted or vessel mounted configuration.

Cleaning ROV (C-ROV) Systems

For locations where diver operated systems are considered unsuitable, Subsea Global Solutions operates remote operated vehicles, simply called the cleaning ROV, or C-ROV/CROV for short.  There are two main in-house designed and built systems currently used, which comply with local authority requirements and regulations.

ECOFRIENDLY C-ROV, uses filtration systems with low- and high-pressure filtration, and UV treatment.  These are designed for elimination of biofouling and prevent aquatic invasive species transfer, the systems use a reclaim system for in-water cleaning and capture (IWCC), with multi-stage filtration of particulate matter down to 1 micron and render waste effluent “inert” prior to cleaned water return.  The biofouling waste retrieved is recycled within a certified biomass to biofuel process.  To comply with our own internal policies periodical water sampling is also undertaken, with samples evaluated by external certified analysis.  This configuration is medium truck transportable, and can be run from quayside, workboat or barge mounted - making it suitable for regional use if required.

PORTABLE C-ROV, this highly portable and air transportable variant forgoes the reclaim system as these are deployed to clean vessels and vessel-like structures on location, before they move, these units are also capable of cleaning heavy macrofouling. Typically deployed for offshore units like semi-submersibles, Floating Production Storage and Offtake (FPSO) and FSO’s, their high-definition real-time video also acts as part of an underwater inspection team when deployed with our Observation ROV’s which are able to access niche areas underwater, or as part of a combined ROV and diver project team.

Whale Shark Filtration and Water Treatment System

For locations with regulations focused on invasive species and the potential release to the Environment of matter in either a particulate or solution form, Whale Shark Technologies LTD (WET) (a Wholly owned Engineering company of Subsea Global Solutions) has developed the Whale Shark.  It features a spoils recovery vacuum system, spoils filtration system and water treatment system that extracts metals from solution.  Once water passes through Whale Shark, filtered and treated water returns to the environment. This system has been developed and is being tested with good success in Vancouver Canada, impaired water-ways in Baltimore, MD, Alameda and Oakland California, as the only participant in the US Government sponsored IWCC (In-Water Cleaning and Capture Technology) study.

The Whale Shark system is a multistage mechanical filtration system combined with a water treatment plant capable of operating continuously during Hull cleaning operations.  The system has the capability to filter particulates in solution down to 1 micron and remove soluble metals (like copper and zinc) in solution. The Whale shark system should be considered for locations that require biofouling management, Hull Cleaning, spoils recovery with particulate filtration, and water treatment to reduce or eliminate all metals (particulate or soluble) released during underwater hull Cleaning or propeller maintenance from re-entering into the environment.  This system requires a large truck-based trailer or barge mounted configuration which makes it suitable for regional use if required.

Beluga Eco-friendly Propeller Polishing and Niche Area Cleaning System

The Beluga Eco-friendly cleaning system was designed to manage the ever increasing threat of invasive species and—if needed, to also treat soluble metals that may be present in effluent water. With filtration capabilities currently down to 5 microns, the Beluga system has interchangeable tools that can be connected to it for the execution of hull niche area cleaning or eco-friendly propeller polishing.

Looking for underwater welding maintenance and repair services?

Contact Us 24/7
Request Service