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BALLAST WATER TREATMENT SYSTEMS

UV+ Filtration Based - IMO & USCG Type Approved

Backup_of_Arico Marine Brochure 2018 -GR

Ships transfer 3 to 5 billion tons of ballast water annually between oceans. Ballast water contains many marine organisms, larvae, eggs, plankton that, when introduced into a new environment, invade the local marine ecological system. It has been estimated that more than 7000 species are transported each day through ballast tanks.

 

The direct economic impact as well as the potential long term damages to the environment and people has led to the development of Regulations to control the transport and discharge of aquatic organisms. In 2004, the IMO adopted the International Convention for the Control and Management of Ships' Ballast Water and Sediments (a.k.a. BWM Convention), which will enter into force 12 months after ratification by 30 states representing 35% of the world merchant shipping tonnage.

 

The BWM Convention requires ships to develop ballast water management plans, to maintain ballast water record book, and to undertake certain measures (exchange of ballast water under D-1 rule, and treatment under D-2 standard) to control the ballast water discharges. 

BIO-UV's BIO-SEA® system first cleans ballast water using a screen filter, in order to reduce the amount of total suspended particles, organic or not, present in the sea water. The filter size will be dependent on the system size according to the ballast pump flow rate.

 

Then UV treatment takes place in a reactor without any addition of chemicals nor creation of active substances. It inactivates the microorganisms present in the water (bacteria, phytoplankton, zooplankton).

 

When ballasting, both operations of filtration and UV disinfection are carried out: the objective is to limit the loading of suspended solids and living microorganisms in the ballast tanks.

 

When deballasting, only UV disinfection is done. This allows re-treating the water that stayed in the ship's ballast tank during the journey, in order to eliminate the possible biological recontamination, to ensure compliance with the IMO standards.

The entire operation of the BIO-SEA® system is automated (valves opening and closing, filter cleaning, UV intensity regulation).

BENEFITS

  • IMO and USCG Type Approved 

  • Well proven technology

  • High UV dose

  • Tested in low UV water transmittance conditions

  • Not impacted by water temperature or salinity

  • Modular : flexible, scalable to any flow rate

  • Easy to install, operate and maintain

  • Automatic operation, easy-to-use interface

  • Automatic regulation of power consumption depending on water quality

  • Safe: no explosive gases, no induced corrosion, chemical free

  • First Class marine components

  • Cost efficient solution

Technical Characteristics

Treatment Capacity

 

Power Supply

 

Power Requirement per UV reactor

 

Environmental Operating Conditions

 

Global Head Loss

 

Min Operating Pressure

 

Max Operating Pressure

from 100 to 1000 m3/h +

 

380 – 440V; 50-60 Hz; 3-phase

 

14 to 22 kW depending on water quality

 

T°= 0°C - 55°C; H% = 90                 

 

< 0,5 bar

 

1 bar

 

10 bars