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Cruise Ships

Cruise Ships

Systems so seamless your crew may not know they are even there
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The first Hyde GUARDIAN® Ballast Water Management System (BWMS) was installed on a cruise ship.

Since then, that same owner has outfitted dozens more and that first system is still performing and preventing the spread of invasive aquatic species – a testament to the technological strength of one of the maritime industry’s most reliable and predictable ballast water management systems.

The Hyde GUARDIAN BWMS is compact and customizable – designed to meet the specific needs of the cruise ship market. Whether the system is integrated directly into the ship’s central automation system or whether it is run by a stand-alone remote-control panel fitted to the bridge console or mounted in the engine control room, the Hyde GUARDIAN quickly integrates itself seamlessly to the routines of the crew.

At De Nora, we deploy a century of environmental leadership for shipowners and operators – providing comprehensive ballast water management solutions to help ensure their vessels’ compliance with International Maritime Organization (IMO) and USCG regulations designed to stop the spread of invasive aquatic species.

One of the ways De Nora deploys its suite of BWM technologies for shipowners is through the Hyde GUARDIAN® BWMS, which offers a variety of efficient, cost-effective benefits vessel operators depend on for proper ship operations.

The Hyde GUARDIAN® BWMS was a pioneer in the effective use of ultraviolet (UV) light combined with a proprietary filtration system to deliver the flexibility needed to address varying types of water quality around the world. And, by enabling vessel operators to adjust the UV treatment dose, the Hyde GUARDIAN BWMS can operate at peak efficiency, so no organisms are left untreated, and no excess energy is consumed.

Ideal for flow rates up to 1000 m3/h, the Hyde GUARDIAN® BWMS offers the maritime industry’s first automated performance analytics solution for ballast water management – the Hyde GUARDIAN Data Log Analysis Utility (DLAU).

DLAU is a predictive maintenance tool, which monitors the health and performance of the entire Hyde GUARDIAN system. Data are shared with both the owner and De Nora technical specialists. Moreover, DLAU is part of a broader cloud-based technology suite – DE NORA VIA™ , which offers comprehensive remote support technology and enabling De Nora technical support specialists to remotely connect with crews in real time to provide support services for optimal BWMS operations.

With an intuitive interface, easy integration with the existing automation systems, and a first-of-its-kind feedback alarm to tell crews when the system is not operating inside the boundaries of the Type Approval testing, the Hyde GUARDIAN BWMS is a leap forward in BWM performance and results.

Case Study

With their 14th (and counting) collective installation in the fleet, Hyde Marine and Princess Cruises extend their long relationship with this system for the Sun Princess.

The Challenge
The Challenge

Multi-purpose tanks, which are preferably gravityfed, are commonplace among cruise vessels. These tanks create concerns when introducing new ballast water discharge standards.

The Solution
The Solution

Tank segregation is the new norm when moving to compliance with international ballast water regulations.

See the Case Study

The Right Choices for Your Ship


DEMAND RUGGED. The rugged leader in providing UV treatment at some of the lowest flow rates on the market.


DEMAND EFFICIENCY. Efficiency and reliability are the hallmark of the best selling GUARDIAN unit.


DEMAND PERFORMANCE. Our flagship reactor in full test mode, ready to meet your ship’s needs.

Get a Quote Get a Quote

Now that you have the information you need, why not build the Hyde GUARDIAN system for your ship and get a budgetary quote.

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Get Answers Get Answers

Looking for a single source for all of the important ballast water information? Wondering what regulations apply to your ship? Find answers to all of your ballast water questions when you ask Hyde Marine.

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Stay Compliant

Use our handy calculator to check your ballast water compliance date.