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Dedicated to safe ships and clean seasDedicated to safe ships and clean seasDedicated to safe ships and clean seas
ACS Seminar
Nguyen Viet Phuong; Vu Ba Huy
Vietnam Register
BWMS COMMISSIONING TEST
Dedicated to safe ships and clean seas
CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
Dedicated to safe ships and clean seas
The status of The International Convention for the Control and
Management of Ships' Ballast Water and Sediments, 2004 (BWM
Convention):
● Entered into force globally on September 08, 2017
● As at June 2021, the Convention has been ratified by 86 countries
representing more than 91% of the world merchant shipping tonnage
The status of Asian countries:
● Party to the Convention: China, Indonesia, Japan, the Republic of
Korea, Malaysia, Bangladesh, Pakistan, Philippines
● Non-party to the Convention: India, Vietnam, Cambodia, Myanmar,
Sri Lanka, Thailand
INTRODUCTION
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Figure 1: Implementation of the BWM Convention (IMO,2018)
INTRODUCTION
source:
https://wwwcdn.imo.org/localresources/en/MediaCentre/HotTopics/Documents/BWM%20infographic_FINAL.pdf
Dedicated to safe ships and clean seas
Is necessary for the commissioning test of BWMS since the system
has been approved by the Classification Society or Administration?
Regarding 2020 White paper of SGS (the world’s leading testing,
inspection, and certification company), from 10/2019 to 04/2020, SGS
conducted commissioning tests for 95 BWMS in 9 countries, for vessels
of 5 flag States, under 8 classification societies, and from 14 vendors
● Approximately 21% failed to meet the D-2 performance standard
● All failures to meet the D-2 performance standard occurred in the
largest size class (≥50 µm) of organisms. Rarely, failures also
occurred in the ≥10 µm to <50 µm size class (2%) and the indicator
microbes (<10 µm; 6%)
INTRODUCTION
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INTRODUCTION
Figure 2: The causes for failures of Commissioning Test (SGS,2020)
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The main purpose of the commissioning testing is not to validate the
design of Type Approved BWMS but to validate that the installation
of a BWMS by demonstrating that its mechanical, physical, chemical
and biological processes are working properly
INTRODUCTION
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Countries have requested Commissioning test for their flag vessels:
Australia, France, Greece, Cyprus, Croatia, Tuvalu, Singapore and India
Countries recommend the ship-owner to do the test:
Liberia, Panama, Bahamas...
INTRODUCTION
Dedicated to safe ships and clean seas
CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
Dedicated to safe ships and clean seas
MEPC 75 adopted Resolution MEPC.325(75) - Amendments to
regulation E-1 and Appendix I - (Commissioning testing of ballast water
management systems and form of the International Ballast Water
Management Certificate) in accordance with article 19(2)(c) of the BWM
Convention
IMO REGULATIONS
→ This amendment shall be deemed to have been accepted on
December 1, 2021 unless, prior to that date, more than one third of the
Parties have notified the Secretary-General that they object to the
amendments
→ This amendment shall enter into force on June 1, 2022
Dedicated to safe ships and clean seas
BWM.2/Circ.70 - Guidance for the commissioning testing of ballast
water management systems
● Approved at MEPC 73 (October 2018)
● The uptake water (ambient water) and discharge water (after the
full treatment) should be taken in accordance with the Guidelines on
ballast water sampling (G2)
● All size classes of organisms as specified in the D-2 standard
should be analyzed using indicative analysis methods
● The applicable self-monitoring of the BWMS should also be
assessed, taking into account the System Design Limitations of
the BWMS
● Some countries such as France, Australia are still using this
Guidance
IMO GUIDANCES
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BWM.2/Circ.70 - Rev.1- 2020 Guidance for the commissioning testing of
ballast water management systems
● Approved at MEPC 75 (November 2020)
● The discharge water (after the full treatment) should be taken in
accordance with the Guidelines on ballast water sampling (G2). The
total sample volume should be at least 1 m3
● Two size classes of organisms, namely ≥ 50 µm and ≥ 10 µm to <
50 µm as specified in the D-2 standard should be analyzed by
indicative analysis methods
● The applicable self-monitoring of the BWMS should also be
assessed, taking into account the System Design Limitations of the
BWMS
● This circular revokes BWM.2/Circ.70 when Resolution
MEPC.325(75) enters into force
IMO GUIDANCES
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THE TESTING FACILITY
According to circular BWM.2/Circ.70 - Rev.1
● Collect and analysis of the representative samples
● Independent to BWMS manufacturer and supplier
● Satisfaction of the Administration
IMO GUIDANCES
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CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
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SAMPLE TAKING
● Sample taking
● Then use analysis methods
● Check parameters and related equipment
VALIDATING COMPLIANCE
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SAMPLE TAKINGBWM.2/Circ.42/Rev.2
● Uptake line: A sample of the ambient water
● Discharge line: A sample of the ballast water
● The sampling protocol used should result in a representative sample
of the whole discharge of the ballast water from any single tank or
any combination of tanks being discharged
The total sample volume
= At least 1m3
(SGS,2021)
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SAMPLE TAKINGBWM.2/Circ.42/Rev.2
Analysis type
Filter skid
+
isokinetic
sampling
Plankton net
+
isokinetic
sampling
Continuous
drip
sampler
+
isokinetic
sampling
Grab sample
Indicative analysis
≥ 50 µm X X
≥ 10 µm and < 50 µm X X
Detailed analysis
≥ 50 µm X X
≥ 10 µm and < 50 µm X
Table 1: Sampling and analysis methods/approaches
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SAMPLE TAKINGBWM.2/Circ.42/Rev.2
Filter Skid (SGS, 2021) Plankton net (Alfa Lavan, 2021)
Continuous drip
sampler (EMSA, 2019)
Figure 3: Sampling devices
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Table 2: Methods
Methods Installation Error
1 Filter skid + Isokinetic sampling Discharge
line
Lower
2 Cylinder containing plankton net
+ Isokinetic sampling
Discharge
line
Lower
3 Sampling tub containing
plankton net + isokinetic
sampling
Discharge
line
Lower
4 Continuous drip sampler +
Isokinetic sampling
Discharge
line
Lower
5 Grab sample BW tank Higher
SAMPLE TAKINGBWM.2/Circ.42/Rev.2
Dedicated to safe ships and clean seas
SAMPLE TAKINGG2 - MEPC.173(58)
GUIDELINES FOR BALLAST WATER SAMPLING (G2)
1. The length of the straight sample pipe facing into the flow can vary, but
not usually to be less than one diameter of the sampling pipe
2. The sampling port to be oriented such that the opening is facing
upstream and its lead length is parallel to the direction of flow and
concentric to the discharge pipe
3. Samples to be taken from the discharge line is as near to the point of
discharge as practicable, during ballast water discharge whenever
possible
4. The sampling point is to be installed in a straight part of the discharge
line as near to the ballast water discharge overboard as practicable
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SAMPLE TAKINGG2 - MEPC.173(58)
Figure 4: Sampling Pipe(Thao Linh, 2021)
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SAMPLE TAKINGISO 1171-1:2019
Figure 5: A sample collection probe(SGS,2021)
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SAMPLE TAKINGISO 1171-1:2019
1. Perpendicular sample 2. 45° sample
Figure 6: Arrangement of
sample port valve
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Table 3: Sample port dimensions
With a discharge pipe size of DN 100 or greater
Sample port A B C d
Perpendicular 100 190 400 97
45o 80 240 500 74
*Dimensions in millimeters
SAMPLE TAKINGISO 1171-1:2019
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ANALYSIS METHODS
● Analyse for all size classes using indicative analysis methods are listed
in Table 5 (BWM.2/Circ.42/Rev.2)
● Detailed analysis methods are listed in Table 6 (BWM.2/Circ.42/Rev.2)
Parameter Limit Value
● Organisms ≥50 µm (typically zooplankton) ● <10 viable
organisms/m3
● Organisms ≥10 µm and <50 µm (typically
phytoplankton)
● <10 viable
organisms/ml
Table 4: IMO target organism groups and performance standards
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Microscopy examinationVisual count/ inspection
Flow Cytometry Accredited Laboratory
ANALYSIS METHODS
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Table 5: Indicative analysis methods
Indicator Approach
1 Viable organisms ≥ 50 µm
Visual counts or
Stereo-microscopy
Visual inspection
2 Viable organisms ≥ 10 µm and < 50 µm Variable fluorometry
3
- Viable organisms ≥ 50 µm
- Viable organisms ≥ 10 µm and < 50
µm
Flow cytometry
Pulse counting fluorescein
diacetate (FDA)
Photometry, nucleic acid,
ATP
• No international standard for ballast water analysis at this moment
ANALYSIS METHODS
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Table 6: Detailed analysis methods
Indicator Approach
1Viable organisms ≥ 50 µm
Visual counts or stereomicroscopy examination.
Flow camera (based on vital stains and chlorophyll a)
Time-consuming, needs trained personnel
Expensive
2Viable organisms ≥ 10 µm
and < 50 µm
Visual counts or stereomicroscopy examination.
Visual counts with use of vital stains.
Flow cytometers
Time-consuming, needs trained personnel
Expensive
• No international standard for ballast water analysis at this moment
ANALYSIS METHODS
Dedicated to safe ships and clean seas
CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
Dedicated to safe ships and clean seas
SELF-MONITORING PARAMETERS
SELF-
MONITORING
PARAMETER
Correct biological
performance
(TRO concentration;
UV transmittance …)
System operation
(flow rate, pressure... )
Uptake cycle
Discharge
cycle
Record Monitor
Design
Limitations
of BWMS
Human machine Interface
(HMI)
Screen provide real time-
update
Figure 7: Self- monitoring parameters during the test
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• Self-monitoring parameters are provided by:
✔Operation, Maintenance and Safety Manual
✔Type Approval Certificate
✔Documentation from Manufacturer
• Setpoints for the self-monitoring parameters should be recorded and
compared against when the system is in operation
• Photos of the BWMS HMI screen should be taken periodically
throughout the commissioning test as evidence of the report
SELF-MONITORING PARAMETERS
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CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
Dedicated to safe ships and clean seas
BENEFITS
● To ensure that the BWMS has satisfied with the BWM Code and to
achieve the purpose of the BWM Convention
● From the vessel owner’s perspective, after the Commissioning test,
the BWMS is also being completed retrofit
→ More convenience for the PSC inspections
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CHALLENGES
● The Burden for the ship-owner
● Time challenge: The BWMS may requires holding time of ballast
water before discharge longer than the ship’s schedule
● Water challenge: The BWMS is not compatible with the ambient
water and commissioning test. The test needs to be done in a
different location
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● Ship’s crews must be familiar with self-monitoring details and
provide assistance to the test
● Installation location is difficult to reach for sample taking
● Preparation (tank cleaning, power supply, etc) and smooth
coordination of the parties involved in the test
● Various systems with their different functions and operations
which require testing facility with the expertise of testing
CHALLENGES
(SGS,2021)
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Figure 8: BWMS Manufacturers (SGS,2021)
CHALLENGES
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CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
Dedicated to safe ships and clean seas
CLASSIFICATION SOCIETY’S ROLE
Classification Society surveyor
● Conduct a survey of the installation, checking that the mechanical
and electrical components are in accordance with the approved
drawings
● Witness an operation test (include both ballasting and deballasting
operations), function and alarm test of safety device, control and
monitoring device of BWMS as part of the installation survey
● Review the commissioning test reports of the testing facility
● Issue the International Ballast Water Management Certificate after
the satisfactory completion of the test
Dedicated to safe ships and clean seas
CONTENTS
● Introduction
● IMO regulations and guidances
● Sample taking and analysis
● Self-monitoring parameters
● Benefits and challenges
● The Role of the Classification Society
● Conclusion
Dedicated to safe ships and clean seas
CONCLUSION
● Despite many difficulties, the commissioning test is mandatory to
achieve the purpose of the BWM Convention
● The test shall enter into force on June 1, 2022
● The test requires smooth coordination between the stakeholders
● The collection and analysis of the representative samples should be
independent of the BWMS manufacturer or supplier and to the
satisfaction of the Administration.
Dedicated to safe ships and clean seas
THANK YOU
ACS Website:
http://www.asiancs.org
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