Home > Products & Services > Environmental Systems > Our New Technologies > Ballast Water Purification System “ClearBallast”
Ballast Water Purification System
Ocean going vessels intake sea water for ballast to stabilize hull balance when unloading cargoes. The sea water contains local plankton, bacteria, viruses, mud and sand native to the port of unloading. When the ships load cargoes at another port, the ballast water is discharged. The contamination of sea water with foreign aquatic organisms from another port causes serious environmental damage.
In response to this problem, the IMO (International Maritime Organization) stipulates all new ships from 2012 must install onboard ballast water management system which meets the regulation D-2 by IMO.
Our “Ballast Water Purification System” employs a coagulation and magnetic separation method which forms flocs to capture organisms. The flocs are then removed by using powerful magnets.
It can treat sea water at high speeds, greatly reducing the accumulation of mud and dead microorganisms in Ballast Tanks and does not cause secondary contamination to other ports since no disinfectants are used.
System Outlines
Pretreatment using coagulation technology
Coagulation technology forms magnetic flocs by adding and agitating a coagulant and magnetic powder to the sea water, in order to capture plankton, viruses, mud and sand.
Purification using magnetic separation technology
A high speed Magnetic Separator collects the magnetic flocs and the residual flocs are removed with a Filter Separator.
Summary of System Features
- Unique coagulation and magnetic separation technology
- Satisfies IMO Performance Standards for the removal of plankton and bacteria
- No biological toxicity as it does not use any disinfectants
- Greatly reduces mud (mud and dead microorganisms) in Ballast Tanks
- Less abrasive to internal coating of Ballast Tank
- No treatment is needed when discharging ballast water as treatment is conducted when sea water is drawn in
- Therefore, it facilitates smooth loading work
Schematic View
Image Chart
Example of Onboard Setup
Example of Onboard Setup
Process Diagram
System Diagram
Specification
| Ballast Pump Capacity (m³/h) | Foot print (m²)*1 | Electric Power (kW) | ||||||
|---|---|---|---|---|---|---|---|---|
| Coagu- lation Tank |
Flocculation Tank (Vertical Blade) |
Magnetic Separator | Filter Separator | Additive Processing Unit *2 |
Collected Flocs Heating Equipment | Control panel | ||
| 200 | 1.2 | 3.3 | 4.2 | 4.3 | 4.5 | 1.4 | 1.2 | 21 |
| 400 | 1.8 | 3.7 | 6.8 | 7.5 | 8.3 | 1.4 | 1.2 | 31 |
| 800 | 2.5 | 11 | 14 | 16 | 8.3 | 2.3 | 2.0 | 56 |
| 1200 | 5.4 | 16 | 27 | 28 | 17 | 4.6 | 2.8 | 85 |
| 1600 | 5.0 | 22 | 29 | 32 | 17 | 4.6 | 2.8 | 112 |
| 2400 | 11 | 32 | 53 | 56 | 44 | 9.2 | 4.0 | 170 |
- *1
- Indicates the footprint of each component.
- *2
- Includes the magnetic powder injector, inorganic coagulant injector and organic flocculant injector.
Notes:
As this system allows flexible equipment layout plans depending on ship's structure, please contact us for details.
- 1:
- Equipment can be divided and installed at distant areas,if the installation area is limited.
- 2:
- As an alternative to confined space measures,it is also feasible to embed a coagulation tank, flocculation tank,and collected flocs heating equipment into a water tank including a unused ballast water tank.
- 3:
- The flocculation tank be rotated 90 degrees and installed as option.
- 4:
- Then the flocculation tank, the magnetic separator and the filter separator can be installed in a vertical formation.
(The figures are based on February, 2010 designs.)
* The system registered brand of "ClearBallast" has been applied overseas by Hitachi Plant Technologies, Ltd. and is still pending.
Contacts for Inquiries and Product Catalog
For further information, please contact us by
Request for Product Catalog