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Products/ PRODUCTS

OceanGuard® BWMS

OceanGuard®  BWMS is developed by Headway Technology Co., Ltd. together with leading universities in China. 

OceanGuard® BWMS
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Control Unit

Control Unit is responsible for regulating the entire system including collection of various signals from the sensors, Management of alarm signals and controls of system startup and shutdown.  It contains all procedures for the system operation, displays the system working condition, including the working condition of various parts as well as data and status reported by real time inspection from various sensors.

 

Filter

OceanGuard®  adopts full auto-back flushing filter, which can realize the simultaneous operation of filtration and back flush. The filtration precision is 50μm. It can remove organisms larger than 50μm in ballast water to prevent micro organisms and sediments entering ballast tank.

 

 

Filter

Treatment Capacity：100m3/h—5000m3/h.

Filtration Precision：50 μm

Automatic back-flush

Low input pressure

Flexible for retrofit

 

 

EUT

EUT Unit is the core of OceanGuard®  BWMS. Each single unit has the treatment capacity from 100-3000m3/h. The Unit comprises of two parts: Electrocatalysis Unit and Ultrasound Unit. The Electrocatalysis Unit is able to produce large numbers of hydroxyl radicals and other highly active oxidizing substances to kill all organisms in ballast water within several nanoseconds. The whole sterilization process is completed inside the EUT Unit.  During the treatment process, the Ultrasound Unit can clean the surface of Electrocatalysis Unit regularly to keep the long-term treatment effectiveness of the electrocatalysis material.

 

 

 

Advantages of OceanGuard®

 

【Technology of Advanced Electrocatalysis Oxidation Process (AEOP)】

Hydroxyl radicals produced in the process of Management by AEOP technology will disappear after several nanoseconds. These radicals have high sterilization efficiency, which are able to kill different bacteria, viruses, algae and dormant ovum in ballast water effectively (broad spectrum sterilization) in a chained mode. The sterilization process can be completed within EUT Unit. The concentration of TRO (total residual oxidation) can be controlled within 2ppm, so that the TRO can carry out advanced Management on the water in ballast tanks.

 

【No corrosion to Ships】

Hydroxyl radicals produced by OceanGuard® Ballast Water Management System will disappear after several nanoseconds. The whole sterilization Management is completed within EUT Unit. Through the Management, TRO concentration is within 2ppm. According to results of long-term operation, the system is proved to be safe and reliable, and water treated by OceanGuard™ causes no corrosion to the hull.

 

【Satisfy Requirements】

Fully meet IMO regulation and California requirement.

 

【Compact Design; High-Quality Spares】

Compact design, small footprint, easy installation and maintenance free. OceanGuard®  BWMS can be fitted on various vessels with different internal structures. High-quality materials and spare parts with long lifespan are used for all the components.

 

【Wide Scope of Application】

OceanGuard® BWMS shows excellent performance in fresh water and sea water. The discharged treated ballast water has no any harm to the environment in the surrounding waters.

 

【Energy-saving】

Low operating costs. Energy consumption is only appr. 17KW for the treatment of 1000 m3 of ballast water.

 

【Explosion-proof】

OceanGuard®  obtained Explosion-proof Certificate, which can be fitted in the pump room of oil tanker, liquid gas carrier, etc.

 

【Single Treatment】

The whole process only needs the inflow treatment rather than the discharge treatment, so that it is proper for all the vessel ballast water discharge systems.

 

OceanGuard® Filter Specification

 

Type

Volume(L)

Dimension (MM)

 Flow Range(M3/H)

HMT-50F

60

540*510*1450

10-50

HMT-100F

120

650*565*1445

10-150

HMT-200F

205

800*670*1600

10-250

HMT-300F

300

900*780*1705

50-400

HMT-500F

450

980*780*1705

50-550

HMT-600F

650

1060*895*2330

50-700

HMT-800F

860

1180*1015*2380

50-900

HMT-1000F

1100

1300*1115*2530

50-1100

HMT-1500F

1490

1440*1230*2610

100-1600

HMT-2000F

1900

1500*1230*3260

100-2100

HMT-3000F

2500

1700*1455*3480

100-3100

HMT-4000F

4000

1900*1675*3600

100-4500

HMT-5000F

5900

2100*1915*4050

100-5500

S-ZF1-V

170

760*655*1679    

10-150

S-ZF2-V

190

760*655*1679    

10-250

S-ZF3-V

280

800*790*1880

50-400

S-ZF4-V

330

930*830*2050

50-550

S-ZF5-V

400

920*805*2200

50-700

S-ZF6-V

800

970*960*2700

50-900

S-ZF7-V

1250

1255*1190*2700

50-1100

S-ZF8-V

1375

1255*1190*2633

50-1300

S-ZF9-V

1800

1550*1500*2800

100-1600

S-ZF10-V

2400

1560*1520*3110

100-2200

S-ZF11-V

2500

1560*1520*3250

100-2500

S-ZF12-V

4200

1800*1700*3756

100-3500

S-ZF13-V

5400

1850*1750*4150

100-4500

S-ZF1-H

170

1599*655*760    

10-150

S-ZF2-H

190

1599*655*760    

10-250

S-ZF3-H

280

1800*765*980

50-400

S-ZF4-H

330

2030*795*1025

50-550

S-ZF5-H

400

2145*795*1025

50-900

S-ZF6-H

800

2600*970*1210

50-900

S-ZF7-H

1250

2700*1190*1427

50-1100

S-ZF8-H

1375

2533*1190*1427

50-1300

S-ZF9-H

1800

2700*1350*1600

100-1600

S-ZF10-H

2400

3100*1520*1645    

100-2200

S-ZF11-H

2500

3100*1520*1645    

100-2500

S-ZF12-H

4200

3756*1700*1800

100-3500

S-ZF13-H

5400

3970*1740*1920

100-4500

 

 OceanGuard® EUT Specification

 

Type

Power（KW）

Dimension（mm）

Capacity Range（m³/h）

HMT-50E

0.8

426*411*1041

10-85

HMT-100E

1.5

426*555*1041

10-150

HMT-200E

3

426*555*1376

10-250

HMT-300E

4.5

426*555*1701

50-350

HMT-450E

6.8

456*601*1821

50-500

HMT-600E

9

505*631*1957

50-700

HMT-800E

13

505*781*1957

50-900

HMT-1000E

17

605*676*2123

100-1100

HMT-1200E

21

605*786*2123

100-1400

HMT-1500E

25

665*786*2208

100-1700

HMT-2000E

34

665*926*2208

100-2200

HMT-2500E

42

695*1054*2212

100-2700

HMT-3000E

52

695*1054*2222

100-3500

HMT-4000E

69

695*1054*2222

100-4500


 

Test Report for Corrosion Contrast Experiment for Water Treated by EUT Unit of OceanGuardTM BWMS to Different Materials and Coatings.

Based on the long-term testing , the effects of two test waters on Q235 steel, SS304 and coating materials are the same, indicating that the treated seawater will not change the corrosion rules in the natural seawater for the materials above; and for butyl rubber, the effects of treated seawater on its properties are less than that of natural seawater.

   

1.Photo of appearance feature of the no-scribe coating specimen immersed in two test waters for 180 days.

 

 


 A Natural seawater immersion


B Treated seawater immersion

 


   2.  Figure 14 Photo of the appearance feature of the scribe-to-primer coating immersed in two test waters for 180 days.


A Natural seawater immersion


 B Treated seawater immersion

 

 



 

 

Retrofitting

※Suitable for vessels of all types  ※Simple structure and flexible installation  ※Small footprint and low power consumption  ※One-stop service

 Cases 

 

Vessel Type

Installation Time

BWTS

Class

Cruise Vessel

2012

HMT-200

RINA

 

 

 

Vessel Type

Installation Time

BWTS

Class

Tanker

2014

HMT-2000Exx2 + HMT-300

CCS

 

 

 

Vessel Type

Installation Time

BWTS

Class

Bulk Carrier

2015

HMT-1000x2

DNV

 





 

 

 

 

 

 Shipping moves over 80% of the world's commodities and transfers approximately 3 to 5 billion tonnes of ballast water internationally each year.

Ballast water is absolutely essential to the safe and efficient operation of modern shipping, providing balance and stability to un-laden ships. However, it may also pose serious threats to ecology, economy and health.

There are thousands of marine species that may be carried in ships' ballast water, 
basically anything that is small enough to pass through a ship's ballast water intake 
ports and pumps. If these organisms survive transport to other parts of the globe, their impact can be devastating. Such invasions can jeopardize the local ecosystem, and even pose threats to human health. Usually, their effects are irreversible.

The introduction of invasive marine species into new environments by ships' ballast water, attached to ships' hulls and via other vectors has been identified as one of the four greatest threats to the world's oceans. In 2004, IMO adopted the International Convention for the Control and Management of Ships' Ballast Water and Sediments, which will phase in requirements for ballast water treatment over the coming years.


The IMO Regulations

IMO regulations will not affect all ships in the same way. Ballast water treatment will be phased in, with requirements for different ships arriving at different times.



 

 

 

Keel laid
BW(M3)
Timeline to reach the D-2 Regulation
Before 2009
1,500≤V≤5,0002015
V<1,500 or V>5,0002017
2009-2011V<5,000Dilivery of Vessel
V≥5,0002017
After 2012
All Vessels
Dilivery of Vessel
Vessels built in 2009 should be in compliance with the D-2 Regulation by second annual survey,no later than 2011 (A.1005 (25)).
Requirements for vessels built in 2010 will be discussed in MEPC 59.

 

D-2 Regulation

    In International Convention for the Control and Management of Ships' Ballast Water and Sediments, the following D-2 Regulation is addressed regarding management of ballast water.

 





AEOP Technology of OceanGuard® BWMS
 
OceanGuard®  BWMS is developed by Headway Technology Co., Ltd. together with leading universities in China.  OceanGuard®  BWMS adopts Advanced Electrocatalysis Oxidation Process (AEOP) to kill microbes, bacteria, viruses and dormant ovum in water by using special semiconductor materials under electron excitation and the hydroxyl radicals (·OH) formed by water molecules. Hydroxyl radical (·OH) produced in AEOP is one of the most active substances with very strong oxidizability. It can have different kinds of chemical reactions with almost all biological macromolecules, microorganisms and other organic pollutants instantaneously. Besides, it has extremely fast reaction rate and strong negative charge electron affinities. The end products of reaction are CO2, H2O and traces of inorganic salt without any hazardous residuals. Therefore, the treated water can be discharged out of board without any pollution. The chemical reaction which involves hydroxyl radical is free radical reaction, and it is extremely fast. Generally, the reaction rate with organics is over 109 L/ (mol.s).
 
    Moreover, the form and existence time of hydroxyl radicals is quite short, which is less than 10-12 s, so that the high efficiency and effectiveness of OceanGuard™ BWMS can be guaranteed.

Data from Landbased testings of OceanGuard®  BWMS carried out in NIVA in Sep., 2009.

 

 

Test Project 

OrganismUnitInfluent water

In treated water on day 0

In treated water on day 5

IMO Regulation

Requirement of Califomia

Land-based Testing

>50μm

Ind./m³

213304

0

0

<10

0

>10-50μm

Ind./l

2.023×106

0

0

<104

<10

E-coli bacteria

cfu/100ml

2200

<1

<1

<250

<126

Entrococcus

cfu/100ml

91

<1

<1

<100

<33

 

Shipboard testings carried out in MV YOKOHAMA in Nov., 2009.

 

Test Project  

OrganismUnit

Influent water

In treated water on day 0

In treated water on day 5

IMO Regulation

Requirement of Califomia

Ship- board Testing

>50μm

Ind./m³

3214

0

0

<10

0

>10-50μm

Ind./l

3.22×105

5.7

0.7

<104

<10

E-coli bacteria

cfu/100ml

230

<1

<1

<250

<126

Entrococcus

cfu/100ml

42.3

<1

<1

<100

<33

 

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