BWTS installation and beyond BWM implementation forum · BWTS installation and beyond UK Chamber of...

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BWTS installation and beyond

UK Chamber of Shipping – BWM implementation forum

Sahan Abeysekara

Lloyd's Register EMEA


Ballast Water Treatment Systems and Installation


LR rules… our approach

GOAL

Risk based solution

Prescriptive

requirements

SAFETY & RELIABILITY

Assessing Risk


BWTS: LR Specific ship installation approval

• Submission and review of ship’s specific installation plans against

LR Rules which covers:

• Safe integration of BWTS with other systems

• Effects on other shipboard systems

• Installation location

• Stability, structural, fire and watertight integrity

• Piping and electrical cable routing

• Contingency measures to mitigate operational hazards

• Appraisal of components outside scope of supply from BWTS

manufacturer

• Electrical installations in hazardous areas

• Safe storage and handling of chemicals, if any


Feedback from retrofits

• Always undertake onboard measurements

• Consider impact of BWTS on the flexibility of the ballast system

• Is it possible to use fire pump in case ballast pump is out of service?

• GRE vs steel piping? Effects on fire & safety, stability

• For systems that require galvanised piping, specify compression fittings to prevent

damage to pipe linings

• Minimise ballast water piping in the engine room

• Keep BWTS close to switchboard to simplify cable runs

• How the switchboard impact to Arc flash assessment, if any



• Additional services may be required:

• Fresh water supply may be required

• Air supply to back flush filters and controls

• Lighting

• Fire detection

• Fire extinguishing

• Lifting appliances

• Maintaining fire protection

• Penetrations through bulkheads

• Structural integrity if separate BWTS room is required



• Access for installation

• Getting major items of equipment into position

• Is it possible to get the spanner onto the bolt head?

• Maintenance footprint

• Automation

• Hotel arrangements and LSA for install team (if on passage)

• Update ship’s drawings

• Crew training / documentation



• Key hazards per type of BWT system including areas of safety concerns.

• Size and footprint of the system.

• Certification required and installation approval process.

• Electrical power balance.

• Installation in hazardous areas and/or cargo pump room.

• Location of BWT room and categorisation of the space with respect to fire

protection.

• Treatment of the Aft Peak Tank.

• Stripping of ballast tanks.

• Gravity ballasting – deballasting.

• Corrosion / Erosion issues.


Systems specific issues

• Electro chlorination systems are salinity dependent

• Full flow systems: Unable to treat fresh water

• Side stream systems: side stream can be dosed with salts

• At lower water temperatures electricity consumption increases

• At very low temperatures systems may not be able to treat water effectively

• Side stream systems may be able to use waste heat to raise water temperature

• UV systems are affected by water quality

• High TSS may shadow the UV light

• Erode the quartz sleeve of UV lamps

• Some systems increase the dose based on UVT

• Filters may increase DP and backfushing


Chemical / Product / tanker installation

• Submerged Ballast pumps and ballast discharge

• BWT room on deck for chemical tankers

• Equipment installed in a hazardous area must be explosion proof

• Ballast water from a tank within the hazardous area

cannot pass back into a non-hazardous area

• Ballast water piping serving tanks in

non-hazardous area may be used to fill the

ballast tanks in hazardous area, provided that

an appropriate means of isolation is provided….

IACS UR_M74 Installation of Ballast Water

Management Systems


Port State Control Inspections

PSC Inspections

Initial inspection

Detail Inspection

Indicative analysis

Detailed analysis

• Valid IBWM certificate

• Approved BWMP

• BW Record book correctly completed

• Nominated officer



PSC Inspections

Initial inspection

Detail Inspection

Indicative analysis

Detailed analysis

• BWTS condition and operated correctly

• False entries in BW Record Book ( not consist with BWMS data logger)

• Deviation from approved BWMP

• Crew not familiar with procedures relating to BW management

• Intake of ballast water from an area where hazardous condition declared

• Ship presents threat of harm to environment, human health, property or resources

which constitute a clear ground for sampling



PSC Inspections

Initial inspection

Detail Inspection

Indicative analysis

Detailed analysis

• Check operational and

performance indicators

• Rapid sampling to identify ballast

discharge meet D-2 standards



PSC Inspections

Initial inspection

Detail Inspection

Indicative analysis

Detailed analysis

• Detail analysis of sample to

ascertain any non-compliance


Port State Control – what do we know?

• PSC inspection will follow the normal format i.e.:-

• An initial inspection

• A detailed inspection if there are clear grounds the vessel is not compliant

with the Convention.

• Sampling

• Detail analysis

• What does non-compliance mean?

• Deficiency notice could be issued

• Ballast discharge could be stopped

• Detention

• Targeting for future inspections in subsequent ports


How to mitigate potential problems?

1 • Understand your obligations under the convention

2 • Ensure crew is adequately trained in BWM operations

3 • Manage ballast and sediments in accordance with the Convention

4 • Follow the procedures in the approved BWMP

5 • Maintain the Ballast Water Record Book up to date

6 • Ensure required surveys are carried out within permitted range dates

7 • Operate and maintain equipment in accordance with manufacturer’s instructions

8 • Monitor the treatment system performance


For support and resources visit our website

www.lr.org/bwm

A complete guide to Lloyd’s Register’s ballast water management services

Understanding Ballast Water

Management – Guidance for

Shipowners and Operators

National Ballast Water

Management Requirements

Model Ballast Water

Management Plan

Available Ballast Water

Treatment Systems

Ballast Water Management

Awareness Training Factsheet

http://www.lr.org/bwm

Lloyd’s Register and variants of it are trading names of Lloyd’s Register Group Limited, its subsidiaries and affiliates.

Copyright © Lloyd’s Register Group Limited. 2016. A member of the Lloyd’s Register group.

Sahan Abeysekara Senior Specialist

Engineering Systems

E: [email protected]

Lloyd’s Register EMEA

Southampton Global Technology Centre

Working together for a safer world

mailto:[email protected]

BWTS installation and beyond BWM implementation forum · BWTS installation and beyond UK Chamber of...

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