Water Treatment Solutions

Onboard Water Treatment & Disinfection Solutions for the Maritime Industry

Revolutionizing Potable Water Safety at Sea

Supplying safe and hygienically clean potable water to passengers and crew is one of the most critical challenges in modern marine operations. Whether for drinking, bathing, whirlpools, or food preparation, water onboard must meet strict health and safety standards, particularly those outlined by the United States Public Health Service (USPH) and the Vessel Sanitation Program (VSP).

At Crowned Marine, in collaboration with aquagroup, we deliver advanced onboard disinfection technologies that ensure compliance, safety, and sustainability—without relying on hazardous chemicals or bulky storage systems.

In-Situ Sodium Hypochlorite Generation with ECA Technology

Our systems use Electrolyzed Chlorinated Agent (ECA) technology to produce sodium hypochlorite (NaOCl) directly onboard—using only salt, water, and electricity. This eliminates the need to purchase, transport, or store dangerous chemical disinfectants.

Benefits of On-Site Chlorine Generation:

USPH and DNV Approved

Fully compliant with maritime hygiene standards, our systems are in use across multiple cruise lines worldwide.

No Hazardous Substances

The 0.6% NaOCl solution produced is not classified as dangerous goods, reducing risks to crew, equipment, and the environment.

Biofilm and Legionella Control

Active chlorine disrupts microbial RNA/DNA and destroys protective biofilms, targeting bacteria like Legionella at the root.

Sustainable and Cost-Efficient

Eliminate plastic canisters, lower CO₂ emissions from logistics, and save up to 158,000 EUR annually compared to conventional bleach.

Turnkey Marine Water Treatment Systems

Crowned Marine

We provide complete solutions for water treatment and onboard sanitation, including:

Chlorine Generators (ECA-based)

UV Disinfection Units

Reverse Osmosis Systems

Water Softeners & Salt Supply

Dosing Pumps, Analyzers & Fluid Control

Integrated Monitoring & Automation

All systems are custom-engineered for marine applications, from cruise ships and ferries to offshore platforms and commercial fleets.

Why Choose Onboard Sodium Hypochlorite Production?

Feature	Conventional Chlorine	Crowned Marine + aquagroup
Safety	Requires hazardous material handling	Not classified as hazardous
Logistics	265 pallets/year (10–13% NaOCl)	73 pallets/year (salt only)
Storage Risk	High chlorate buildup over time	None – generated on demand
Environmental Impact	High (plastic waste, CO₂ transport)	Low – sustainable and clean

Cruise Ship with 7500 persons (incl. crew)

	Conventional Chlorine Solution (10–12.5%)		Salt Equivalent
	Number of Canisters (20L)	Pallets (30/can)	Bags (25 kg)	Pallets (40/bags)
Values	7945	265	2920	73
Percentage	100%	100%	—	27.5%

Yearly Costs for Conventional Chlorine

Price per Liter	Price per Canister (20L)	Total Annual Cost
0.80 €	16.00 €	127,120.00 €
1.00 €	20.00 €	158,900.00 €