Marine
Access to clean, safe water at sea and at coastal facilities is a non-negotiable operational requirement. GWT engineers seawater desalination and water treatment systems built for the specific demands of marine vessels, offshore platforms, and coastal marine operations across the UAE and MENA region.
Reliable Water Treatment Built for Marine Environments
Marine operations present some of the most demanding conditions for water treatment systems. Space is constrained, environments are corrosive, and access to technical support is limited when vessels or platforms are at sea. Treatment systems must perform continuously and reliably without the operational infrastructure available on shore.
GWT engineers compact, corrosion-resistant water treatment systems for marine clients including vessels, offshore rigs, coastal industrial facilities, and island developments. Our systems draw on the same proven technologies used across GWT’s 2,000-plus installations across the UAE and MENA region since 1992, configured and built specifically for the weight, space, material, and operational requirements of marine environments.
Water Treatment Challenges in Marine Operations
Seawater as the Only Available Source Marine vessels and offshore platforms have no access to municipal water supply. Seawater is the only available source and must be treated on board or on site to potable standards for crew health, hygiene, and equipment use. Systems must produce consistent output quality regardless of variations in seawater conditions.
Corrosive Operating Environments Salt air, humidity, and direct seawater exposure create severe corrosion risk for treatment equipment. System materials, coatings, and component selection must account for the marine environment to ensure service life and performance are not compromised by accelerated corrosion.
Space and Weight Constraints Offshore platforms and vessel engine rooms have strictly limited space. Treatment systems must be compact, skid-mounted, and designed to integrate within tight physical envelopes without compromising treatment capacity or access for maintenance.
Limited On-Site Technical Support When a vessel is at sea or a platform is operating offshore, access to specialist maintenance support is restricted. Systems must be designed for simplicity of operation, automated where possible, and built to operate reliably between scheduled maintenance intervals with minimal operator intervention.
Potable Water Quality Compliance Water produced for crew consumption must meet applicable potable water quality standards for microbiological safety, taste, and chemical compliance. Inconsistent or non-compliant water quality creates direct crew health risk and operational liability.
GWT Solutions for Marine
Seawater Reverse Osmosis (SWRO) Compact, skid-mounted seawater RO systems configured for vessel and offshore platform installations. Systems include multi-stage pre-treatment covering intake screening, cartridge filtration, and antiscalant dosing, followed by high-pressure pumping through spiral-wound RO membranes, energy recovery, and post-treatment disinfection and remineralisation. All components are selected for corrosion resistance and compatibility with the marine environment. Suitable for cargo vessels, offshore rigs, research vessels, and island facilities.
Energy Recovery Systems Integration of energy recovery devices into seawater RO systems to reduce the power consumption of high-pressure pumping. Particularly relevant for offshore and vessel applications where power generation capacity is limited and fuel costs are high. Energy recovery reduces the operational cost of on-board desalination without compromising system output.
UV Disinfection and Filtration Chemical-free UV disinfection for final microbiological control of produced potable water. Inactivates bacteria, viruses, and pathogens without chemical dosing, eliminating the need to store and handle disinfection chemicals on board. Simple to operate and maintain, with low consumable requirements between lamp replacement intervals.
Nano Filtration and Ultra Filtration Membrane-based pre-treatment for seawater RO systems in locations with high suspended solids, turbidity, or biological loading in the intake water. Reduces the fouling load on RO membranes, extends clean-in-place intervals, and maintains consistent RO output quality in challenging intake conditions.
Grey Water and Sewage Treatment Compact biological and membrane-based treatment systems for vessel and platform grey water and sewage management. Treats onboard wastewater to standards required for compliant overboard discharge under applicable marine environmental regulations. Reduces the need for port waste reception and supports compliance during extended voyages.
Produced Water Treatment For offshore oil and gas platforms generating produced water, GWT designs compact treatment systems for safe overboard discharge or operational reuse. Systems are configured to the specific produced water chemistry of the field and designed to meet applicable offshore discharge standards.
Antiscalant and Chemical Dosing Systems Precision chemical dosing systems for antiscalant, biocide, and coagulant injection into seawater RO pre-treatment trains. Correct chemical dosing protects membranes from scaling and biological fouling, extending membrane service life and maintaining system performance between scheduled maintenance visits.
Pumping Stations Seawater intake and transfer pumping systems designed for continuous duty in corrosive marine environments. Specified for the flow rates, pressures, and fluid characteristics of marine water treatment applications with materials of construction appropriate for direct seawater contact.
Supporting Marine Operations
GWT supports marine clients across the full project and operational lifecycle. Turnkey project delivery covers design, engineering, procurement, fabrication, installation, and commissioning under a single contract. Annual Maintenance Contracts deliver scheduled preventive maintenance and priority technical support, with GWT’s team available to carry out servicing during port calls or at coastal facilities. Rental systems are available for temporary or emergency desalination requirements.
Spare parts, membrane elements, UV lamps, filter cartridges, and chemicals are stocked locally across the UAE for rapid availability. Remote diagnostic support is available for clients operating in locations where on-site technical presence is not immediately accessible.
Why Marine Clients Choose GWT
GWT has been engineering and delivering water treatment systems across the UAE and MENA since 1992, with experience spanning offshore, coastal, and vessel-based desalination and water treatment applications. Our engineering team understands the material, space, weight, and operational constraints of marine environments and designs systems that perform reliably within them.
GWT holds ISO 9001:2015 for Quality Management, ISO 14001:2015 for Environmental Management, and ISO 45001:2018 for Occupational Health and Safety. These standards apply across all project delivery and service activities, giving marine clients confidence in the quality and consistency of every GWT system and engagement.
Other Water Treatment Services
Frequently
Asked Questions
Quick answers to questions you may have. Can’t find what you’re looking for? Get in touch with us.
Can GWT supply compact SWRO systems for vessel installations?
Yes. GWT engineers skid-mounted seawater RO systems configured for the space, weight, and material requirements of vessel and offshore platform installations, including corrosion-resistant component selection throughout.
Does GWT provide sewage and grey water treatment systems for marine applications?
Yes. GWT designs compact biological and membrane-based treatment systems for vessel and platform sewage and grey water management, configured to meet applicable marine discharge standards.
Are GWT's marine systems designed for low operator attendance?
Yes. GWT’s marine systems are configured with automated controls, alarm management, and scheduled maintenance intervals that minimise the operator involvement required for day-to-day system operation.
Does GWT provide ongoing maintenance support for marine installations?
Yes. GWT offers Annual Maintenance Contracts structured around port call schedules and coastal facility access, with local spare parts and consumables stock for rapid response across the UAE and MENA region.
