PureBallast 3.0
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Catalog excerpts

PureBallast 3.0 - 1

PureBallast 3.0 Ballast water treatment system PureBallast 3.0 effectively neutralizes organisms in ballast water. The new system is smaller and more flexible than its predecessors, yet it consumes 30-60% less power. System description PureBallast 3.0 is a highly compact and energy-efficient ballast water treatment system. Operating without chemicals, it uses an enhanced form of UV treatment to reduce organisms in ballast water to IMO and USCG limits. The modular system accommodates a wide range of ballast water capacities and is competitive throughout the flow range up to 6000 m3/h. Individual PureBallast 3.0 reactors handle 300 m3/h or 1000 m3/h and are connected in parallel up to 3000 m3/h, after which dual systems are used. Treatment with PureBallast 3.0 consists of standard UV treatment enhanced by AOT (advanced oxidation technology). UV light neutralizes organisms either directly or through damage to their DNA, while AOT creates free radicals that cause irreversible cell membrane damage.

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PureBallast 3.0 - 2

System features and benefits • Chemical-free operation PureBallast 3.0 meets biological treatment requirements regardless of water salinity and without the addition or generation of chemicals. The system’s operation does not pose risks to the environment or the crew, nor does it influence corrosion in the ballast water system. In addition, the lamp drive cabinets can now be placed up to 150 m away from the reactor they serve. While this does not affect the overall footprint, it allows additional space to be saved in the engine room. Moreover, the avoidance of chemicals eliminates the...

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PureBallast 3.0 - 3

System components The PureBallast 3.0 scope of supply includes everything needed to construct a complete ballast water treatment system with the exception of pipes and cables. • Filter A 50 μm filter is used during ballasting operations to block the intake of larger organisms and reduce sediment in the ballast water tanks. (During deballasting the filter is bypassed.) The filter is cleaned via automatic backflushing using only a small part of the system flow. • Cleaning-In-Place (CIP) unit UV lamp performance is safeguarded by automatic Cleaning-In-Place (CIP). The CIP unit circulates a...

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PureBallast 3.0 - 4

Operating sequence • Ballasting In preparation for ballasting, the lamps of the Wallenius AOT reactors undergo a brief startup sequence, during which they are cooled by a flow of seawater. • Deballasting The deballasting process is essentially the same as the ballasting process. However, the filter is bypassed during deballasting since the water has already been filtered. When ballasting begins, the incoming ballast water first passes through the filter, which is designed to remove organisms and particles larger than 50 μm. The water then continues through the reactors, which treat the...

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PureBallast 3.0 - 5

Capacity range The system size of a PureBallast 3.0 system is determined by the capacity of the ballast water pumps it is used with. An optimized configuration is achieved by matching a reactor setup and filter capacity to the desired ballast water flow. Flow in m3/h For flows in excess of 3000 m3/h, dual systems are installed. With this configuration strategy, PureBallast 3.0 is competitive over the entire flow range up to 6000 m3/h. Technical data for main components The system size of a PureBallast 3.0 system is determined by the capacity of the ballast water pumps it is used with....

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PureBallast 3.0 - 6

Alfa Laval in brief Alfa Laval is a leading global provider of specialized products and engineering solutions. Our equipment, systems and services are dedicated to helping customers to optimize the performance of their processes. Time and time again. We help our customers to heat, cool, separate and transport products such as oil, water, chemicals, beverages, foodstuffs, starch and pharmaceuticals. Our worldwide organization works closely with customers in almost 100 countries to help them stay ahead. How to contact Alfa Laval Contact details for all countries are continually updated on our...

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