Retrofits

Ballast water systems

Retrofits

The Ecochlor® BWTS has a small footprint with a flexible, modular design that simplifies the task of retrofitting for bulkers and tankers.

New ships are being built with space allocated for ballast water treatment systems. The challenge with retrofits is to fit a ballast water treatment system into an existing ship infrastructure as easily and cost effectively as possible. The Ecochlor® BWTS offers key technical and physical advantages to achieve this:

  • Small footprint

  • Modular design

  • Low power consumption

  • Self-contained system

Retrofit Considerations

Performance. It is important to choose a system that meets all existing and projected standards, as well as a system that performs in practice. The technical approach we’ve taken meets or exceeds the most stringent guidelines. In terms of performance in practice, we’ve had one system in operation on a ship that has performed consistently and effectively for over 11 years.

Integration. It is important to choose a system that fits into the existing piping and power infrastructure of a ship. The Ecochlor system offers a small footprint which can also can be split up for added versatility. The filters need to be in close proximity to the ballast pumps but the treatment system can be placed in different locations as needed. The modular design of the treatment system offers further flexibility in tight spaces.

Cost. Cost considerations include initial installation along with ongoing supply and service costs. The small footprint and modular design of the Ecochlor® BWTS offers cost advantages for installation by optimizing available space, thereby minimizing expensive design changes. Low power requirements mean less electricity and fuel used, and minimal crew involvement in running the system equates to savings in labor costs. Chemical resupply, when needed, is handled by Ecochlor at locations around the world.

Retrofit Preparation

For all of our installations we can offer detailed engineering feasibility studies with our marine engineering partners around the world. The studies help answer key questions: What are the ballast water treatment system location options? What are the pros and cons of each? What about power, pressure, and access? How do we minimize modifications to existing piping systems and structural members? What’s the most cost-effective solution? 3-D scans are typically included in these studies.

Our marine engineers validate all the technical parameters: the ballast tank capacity, aft peak tank capacity, pump capacities, the number and location of voyages, the power requirements. They look at the available options and develop a 3-D fly through of the options so you can get a better idea of how the system will really fit in. They look at all the practical considerations: maintenance access, resupply workflow, and other variables to meet your specific needs.

Capesize Bulker

DWT: 179,700

Ballast Water Pump Capacity: 6,000 m3/hr

Optimal filter location: For main ballast pumps, the horizontal filters are located at the engine room flooring, in front of the main engine in a new platform above the pumps. For the general service pump, used for APT ballasting, filter is located at the engine room flooring, port side, in the way of the side shell, just above the APT filling line.

Optimal treatment system location: inside steering gear room or on upper deck aft of accommodation, starboard side, inside a deck house

See 3-D animated scan

Oil Tanker

DWT: 158,000

Ballast Water Pump Capacity: 5,000 m3/hr

Optimal filter location: Inside cargo pump room flooring, starboard side, between ballast pumps and side shell

Optimal treatment system location: Inside steering gear room or in funnel D-deck portside, inside a deck house

See 3-D animated scan

Oil Tanker

DWT: 160,000

Ballast Water Pump Capacity: 4,500 m3/ hr

Optimal filter location: Inside cargo pump room flooring, starboard side, between ballast pumps and side shell

Optimal treatment system location: Inside steering gear room

See 3-D animated scan

Oil Tanker

DWT: 150,249

Ballast Water Pump Capacity: 3,500 m3/hr

Optimal filter location: Inside cargo pump room, at 2nd platform above ballast pumps

Optimal treatment system location: At A-deck, engine casing port side, inside a deck house

See 3-D animated scan

Oil Tanker

DWT: 102,946

Ballast Water Pump Capacity: 3,000 m3/hr

Optimal filter location: Inside cargo pump room, at 1st platform above ballast pumps

Optimal treatment system location: A-deck port side of engine casing, inside a deck house or inside steering gear room

See 3-D animated scan

Installation of the Ecochlor Treatment System on the deck of the Green Bay car carrier.

Side view of the Ecochlor Treatment System deckhouse on the Green Bay car carrier.

The Ecochlor Filtration System was located in the engine room of the Green Bay, and the filters were oriented horizontally.

Piping and valves for ClO2 injection in ballast water stream in the Green Bay installation.

The Ecochlor system has been installed for Coast Guard testing on the Golden Bear.

The treatment system is located in a container on the deck of the Golden Bear.