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Ballast Water Treatment System

Severn Trent De Nora, over the span of more than 35 years, has perfected the on-site generation of sodium hypochlorite disinfectant. We offer the Type-Approved BALPURE® electrolytic disinfection ballast water treatment system as an economical and environmentally friendly solution to the threat of AIS.

With its flexible footprint, ease of operation and significant economical benefits, the Type-Approved BALPURE system is fast becoming the preferred method of ballast water treatment among ship owners and managers. BALPURE offers new and existing vessels with a reliable treatment solution to comply with the most stringent ballast water regulations.

Using a slip stream approach, whereby one percent of the total ballast water flow is used to generate the hypochlorite disinfection solution, the BALPURE system can be remotely mounted away from ballast lines. The BALPURE system is commonly supplied in six small, sub-assembly components to further facilitate its ease of installation. This slip stream approach allows for operation in low-salinity, low-temperature water quality environments.

The slip stream approach represents a major advantage on vessels with pump rooms or hazardous cargo areas because the BALPURE system can be installed in the engine room or in mechanical spaces classified as safe areas. As a result, precious space in the pump room is not taken up and the expensive relocation of equipment is not required. The filter is the only part of the BALPURE system required for installation in the pump room.

Accommodating ballast water treatment for vessels ranging from 500 to 20,000 m3/hr, the BALPURE system is especially advantageous for crude oil tankers, chemical/product tankers, LNG/LPG carriers, bulk carriers and container ships. BALPURE features low power requirements, low maintenance requirements and simple operation.

The BALPURE system operates autonomously throughout the ballasting/deballasting cycle. It utilizes a proven electrolytic treatment process to generate a disinfectant solution, onsite and on demand, using only electricity and seawater. A residual disinfectant remains in the ship's ballast water tanks during the voyage, eliminating possible regrowth of organisms during transit. All active compounds generated in the electrolytic disinfection process are safely neutralized before deballasting.

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