Subscribe to our Mailing Lists (It's free!)
Friday, July 4, 2025
SAFETY4SEA
  • Home
  • Safety
    • All
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
    AP Companies: How physical and mental well-being shape happier ships

    AP Companies: How physical and mental well-being shape happier ships

    bali indonesia

    Ferry sinks off Bali with multiple casualties

    Year in Review: How the Russian invasion of Ukraine affected shipping in 2022

    LR: New requirements for lifting appliances and anchor winches

    LR: Certain ship’s tanks could be subjected to severe microbial attack

    Two crew members accused over deadly tanker collision

  • SEAFiT
    • All
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
    neck pain

    Neck pain: A growing health concern for maritime workers

    Book Review: Building leaders the MMMA way

    Book Review: Feel grounded and think positive in 10 simple steps

    time

    Stay SEAFiT: Time is non-renewable – invest it wisely

    public speaking

    8 Key rules of Public Speaking

  • Green
    • All
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
    hull

    AkzoNobel: Quality antifouling coatings can help with CII and EEXI compliance

    nuclear power

    Nuclear shipping inches closer to reality: Latest developments

    nuclear energy ABS

    Consortium advances floating nuclear power for the Mediterranean

    CSA scrubbers

    CSA urges OSPAR to improve understanding before enacting scrubber ban

  • Smart
    • All
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart
    connectivity

    Innovating ocean safety: Intellian’s unified vision for connectivity and GMDSS

    autonomous navigation

    New deal aims to advance autonomous navigation technology

    abs training center

    ABS opens smart training center in Athens

    iaph cyber security

    IAPH releases cyber security guidelines for new port technologies

  • Risk
    • All
    • CIC
    • Detentions
    • Fines
    • PSC Focus
    • Vetting
    OCIMF

    OCIMF Annual Report 2025: SIRE 2.0 a welcome change for the industry

    USCG

    ABS PSC Report Q1 2025: 526 total vessels detained

    paris mou lists

    Paris MoU 2024 Performance lists

    PSC

    AMSA Annual PSC Report: ISM-related deficiencies on the lead

  • Others
    • All
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Shipping
    • Sustainability
    • Videos
    European Commission EU

    EU in discussions over maritime and port strategies

    underwater noise from ships

    AMSA: Reduction of underwater radiated noise from shipping

    nuclear energy ABS

    Consortium advances floating nuclear power for the Mediterranean

    Germany shadow fleet

    German Government increases vigilance in the Baltic Sea

  • Columns
    AMPI: Seafarers face critical risks in pilot transfer rigging

    AMPI: Seafarers face critical risks in pilot transfer rigging

    connectivity

    Innovating ocean safety: Intellian’s unified vision for connectivity and GMDSS

    human factor organizational safety

    Cracking the safety code: Why human factors matter

    Trending Tags

    • Anchor Your Health
    • Book Review
    • Career Paths
    • Human Performance
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Regulatory Update
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Training & Development
    • Wellness Corner
    • Wellness Tips
  • Events
  • Plus
No Result
View All Result
  • Home
  • Safety
    • All
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
    AP Companies: How physical and mental well-being shape happier ships

    AP Companies: How physical and mental well-being shape happier ships

    bali indonesia

    Ferry sinks off Bali with multiple casualties

    Year in Review: How the Russian invasion of Ukraine affected shipping in 2022

    LR: New requirements for lifting appliances and anchor winches

    LR: Certain ship’s tanks could be subjected to severe microbial attack

    Two crew members accused over deadly tanker collision

  • SEAFiT
    • All
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
    neck pain

    Neck pain: A growing health concern for maritime workers

    Book Review: Building leaders the MMMA way

    Book Review: Feel grounded and think positive in 10 simple steps

    time

    Stay SEAFiT: Time is non-renewable – invest it wisely

    public speaking

    8 Key rules of Public Speaking

  • Green
    • All
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
    hull

    AkzoNobel: Quality antifouling coatings can help with CII and EEXI compliance

    nuclear power

    Nuclear shipping inches closer to reality: Latest developments

    nuclear energy ABS

    Consortium advances floating nuclear power for the Mediterranean

    CSA scrubbers

    CSA urges OSPAR to improve understanding before enacting scrubber ban

  • Smart
    • All
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart
    connectivity

    Innovating ocean safety: Intellian’s unified vision for connectivity and GMDSS

    autonomous navigation

    New deal aims to advance autonomous navigation technology

    abs training center

    ABS opens smart training center in Athens

    iaph cyber security

    IAPH releases cyber security guidelines for new port technologies

  • Risk
    • All
    • CIC
    • Detentions
    • Fines
    • PSC Focus
    • Vetting
    OCIMF

    OCIMF Annual Report 2025: SIRE 2.0 a welcome change for the industry

    USCG

    ABS PSC Report Q1 2025: 526 total vessels detained

    paris mou lists

    Paris MoU 2024 Performance lists

    PSC

    AMSA Annual PSC Report: ISM-related deficiencies on the lead

  • Others
    • All
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Shipping
    • Sustainability
    • Videos
    European Commission EU

    EU in discussions over maritime and port strategies

    underwater noise from ships

    AMSA: Reduction of underwater radiated noise from shipping

    nuclear energy ABS

    Consortium advances floating nuclear power for the Mediterranean

    Germany shadow fleet

    German Government increases vigilance in the Baltic Sea

  • Columns
    AMPI: Seafarers face critical risks in pilot transfer rigging

    AMPI: Seafarers face critical risks in pilot transfer rigging

    connectivity

    Innovating ocean safety: Intellian’s unified vision for connectivity and GMDSS

    human factor organizational safety

    Cracking the safety code: Why human factors matter

    Trending Tags

    • Anchor Your Health
    • Book Review
    • Career Paths
    • Human Performance
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Regulatory Update
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Training & Development
    • Wellness Corner
    • Wellness Tips
  • Events
  • Plus
No Result
View All Result
SAFETY4SEA

LR: Certain ship’s tanks could be subjected to severe microbial attack

by The Editorial Team
May 3, 2022
in Alerts, Loss Prevention
LR: Certain ship’s tanks could be subjected to severe microbial attack

Credits: Shutterstock/Image used for illustrational purposes only

FacebookTwitterEmailLinkedin

Lloyd’s Register (LR) informs that certain ship’s tanks could be subjected to severe microbial attack, causing significant losses in plating thickness.

According to LR, this is a result of biological action where the fluid in the tank has been stagnant during an enforced period of reduced operational status. Tanks likely to be affected are those that may have higher biological loads, such as Grey Water and Treated Black water. Also vulnerable are Distillate (MGO) Tanks, which, if not used, could exhibit this phenomenon due to the presence of condensation.

[smlsubform prepend=”GET THE SAFETY4SEA IN YOUR INBOX!” showname=false emailtxt=”” emailholder=”Enter your email address” showsubmit=true submittxt=”Submit” jsthanks=false thankyou=”Thank you for subscribing to our mailing list”]

RelatedNews

LR: New requirements for lifting appliances and anchor winches

AMSA: 5,625 marine incident reports during 2024

#1 Onboard investigation

Ship operators should investigate any tanks that meet the above criteria and have had a prolonged period of non-use during a period of reduced operational status. It is recommended that class-related tank inspection due dates are advanced in their survey schedule. Associated piping systems should also be monitored as far as practicable for possible diminution or leakage.

As an example of the possible effect of this phenomenon, a tank with several affected areas had 14mm microbial pitting in a 17mm-thick bottom plate. Where sampling of fuel oil tanks show evidence of water ingress due to condensation, shipowners are encouraged to investigate the tank conditions and act appropriately.

LR: Certain ship’s tanks could be subjected to severe microbial attack
Credits: Lloyd’s Register

#2 Ensure pre-checks and testing

When dry-dockings are being planned, it is recommended that shipowners investigate likely tanks to ensure any steelwork repairs can take place in the docking period. As an initial step, testing kits are available to identify contamination in tanks with elevated risk. Further investigation could include laboratory tests.

All cases will be assessed on a case-by-case basis with solutions ranging from steelwork renewals to chemical treatments. Advance planning will benefit shipowners, avoiding unscheduled dry dockings or cancellations. The microbial attack depends upon many factors, including bacteria present, temperature, time, tank agitation and suitable nutrient supply along with the overall tank environment, such as coating condition.

Should chemical treatments be considered, the subsequent MARPOL consequences of tank cleaning should be carefully considered.

#3 Report problems immediately

Adequate time must be arranged to enable repairs and avoid the likelihood of any hull failure or pollution incident.

VIEW MORE ON LR’S REPORT

LR: Certain ship’s tanks could be subjected to severe microbial attackLR: Certain ship’s tanks could be subjected to severe microbial attack
LR: Certain ship’s tanks could be subjected to severe microbial attackLR: Certain ship’s tanks could be subjected to severe microbial attack
Tags: Lloyds Registerloss preventionreports
Previous Post

Port Louis, Mauritius implements new protocol for crew changes

Next Post

UK supports ship-shore integration project

Related News

Republic of the Marshall Islands registry achieves new milestone
Accidents

RMI: 954 incident reports received during 2024

July 3, 2025
NTSB
Loss Prevention

NTSB highlights effective placement of smoke and fire detectors

July 3, 2025
New South Wales
Alerts

New South Wales cyclone disrupts port operations

July 2, 2025
Dryad Global
Security

Dryad Global: Russia’s shadow tanker fleet has tripled since 2022

July 2, 2025
OCIMF
Vetting

OCIMF Annual Report 2025: SIRE 2.0 a welcome change for the industry

July 1, 2025
USCG
PSC Focus

ABS PSC Report Q1 2025: 526 total vessels detained

July 1, 2025

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Explore more

No Result
View All Result
MARITIME EVENTS

Explore

  • Safety
  • SEAFiT
  • Green
  • Smart
  • Risk
  • Others
  • SAFETY4SEA Events
  • SAFETY4SEA Plus Subscription

Useful Links

  • About
  • Disclaimer
  • Editorial Policies
  • Advertising
  • Content Marketing
  • Contact

© 2025 SAFETY4SEA

No Result
View All Result
  • Safety
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
  • SEAFiT
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
  • Green
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
  • Smart
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart
  • Risk
    • CIC
    • Detentions
    • Fines
    • PSC Case Studies
    • PSC Focus
    • Vetting
  • Others
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Shipping
    • Sustainability
    • Videos
  • Columns
    • Anchor Your Health
    • Book Review
    • Career Paths
    • Human Performance
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Opinions
    • Regulatory Update
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Tip of the day
    • Training & Development
    • Wellness Corner
    • Wellness Tips
  • SAFETY4SEA Events
  • SAFETY4SEA Plus Subscription

© 2025 SAFETY4SEA

Manage your privacy
We use technologies like cookies to store and/or access device information. We do this to improve browsing experience and to show (non-) personalized ads. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage {vendor_count} vendors Read more about these purposes
Manage options
{title} {title} {title}
No Result
View All Result
  • Safety
    • Accidents
    • Alerts
    • Loss Prevention
    • Maritime Health
    • Regulation
    • Safety
    • Seafarers
    • Security
  • SEAFiT
    • Intellectual
    • Mental
    • Physical
    • Social
    • Spiritual
  • Green
    • Arctic
    • Ballast
    • Emissions
    • Fuels
    • Green Shipping
    • Pollution
    • Ship Recycling
    • Technology
  • Smart
    • Connectivity
    • Cyber Security
    • E-navigation
    • Energy Efficiency
    • Maritime Software
    • Smart
  • Risk
    • CIC
    • Detentions
    • Fines
    • PSC Case Studies
    • PSC Focus
    • Vetting
  • Others
    • Diversity in shipping
    • Maritime Knowledge
    • Offshore
    • Ports
    • Shipping
    • Sustainability
    • Videos
  • Columns
    • Anchor Your Health
    • Book Review
    • Career Paths
    • Human Performance
    • Industry Voices
    • Interviews
    • Maripedia
    • Maritime History
    • Opinions
    • Regulatory Update
    • Resilience
    • Seafarers Stories
    • SeaSense
    • Tip of the day
    • Training & Development
    • Wellness Corner
    • Wellness Tips
  • SAFETY4SEA Events
  • SAFETY4SEA Plus Subscription

© 2025 SAFETY4SEA