Tanker BWMS retrofits in

Tanker BWMS retrofits in the age of COVID

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Panellist documents

Page 2: Panos Smyroglou, EcochlorPage 13: Leiv Kallestad, OptimarinPage 18: Debra DiCianna, Choice Ballast Solutions

Ballast Water Management System

Choose Ecochlor. Choose Peace of Mind.

EcoOne™

Revolutionary No-Filter BWMS

Suitable for Tanker Installations

Tank De-gassing Technology for MaritimeChoose Ecochlor. Choose Peace of Mind.

Why filterless?

• Some shipowners require a BWMS with reliable, high volume pumping rates

• Issues with filters in heavy challenge waters can be severe

• Additional costs for the BWMS and installation

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The desire from shipowners for a reliable, filterless system is well-documented

but has been delayed to market due to legitimate concerns regarding the efficacy

of existing treatment technologies when used without a filter. That wait is over . . .


ClO2 Treatment Technology: The Filterless Solution

• ClO2 is not affected by suspended sediments or turbidity!

• This means that ClO2 disinfection is effective regardless of changes in turbidity

• Filtration is not necessary to remove sediments prior to treatment with ClO2, in contrast with UV or similar technologies

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EcoOne™ BWMS – Tanker

• Even simpler

• Even more reliable

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EcoOne™ BWMS

treats with a

single-step process

of disinfection with

chlorine dioxide

(ClO2)

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45

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1. Sea Strainer

2. Ballast Pump

3. Motive Water Booster

Pump

4. Ballast Water Flow

Meter

5. ClO2 Injection Point

6. Secondary

Containment

7. 78% Sulfuric Acid Tank

8. Chemical Fill

Connection

9. ClO2 Generator

Enclosure

10. Chemical Vent

Connection

11. Purate® BWT Tank

12. Motive Water Duplex

Strainer


EcoOne™ Operational Parameters

• Target dosage• 4.6ppm

• Salinity limitation• ≥ 1PSU (fresh water quality)

• Water temperature• No limitation

• Still no TRO sensors

• Hold time• 24 hours plus confirmation that

ClO2 residual in ≤ MADC

Series 75 100 150 200 250 300

Treatment Rated

Capacity (m3/hr) 500 1,300 3,500 6,900 12,200 16,200

Dose 4.6ppm

Water Temp. From <-2 to >37 ⁰C (no limitation)

Salinity From ≥1 PSU

Hold Time 24hr.* minimum

Power Requirements Range is between 4 to 6 kW

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EcoOne™ Hybrid BWMS – Tanker

EcoOne™ Hybrid

BWMS for tankers

offers the choice of

single-step and

two-step process

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1. Sea Strainer

2. Ballast Pump

3. Motive Water Booster

Pump

4. Filtration System

5. Ballast Water Flow

Meter

6. ClO2 Injection Point

7. Secondary

Containment

8. 78% Sulfuric Acid Tank

9. Chemical Fill

Connection

10. ClO2 Generator

Enclosure

11. Chemical Vent

Connection

12. Purate® BWT Tank

13. Motive Water Duplex

Strainer

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3

2

4 4

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EcoOne™ Hybrid Operational Changes

• Target dosage• 4.6ppm without filter• 4.25ppm with filter

• Salinity limitation• Marine and brackish water

without a filter• Marine, brackish and fresh water

with a filter

• Water temperature• No limitation with or without a filter

• Still no TRO sensors

• Hold time• 24 hours plus confirmation that ClO2 residual in ≤ MADC

Series 75 100 150 200 250 300

Treatment Rated

Capacity (m3/hr)500 1,300 3,500 6,900 12,200 16,200

Filtration Level 40um

Dose 4.6ppm without a filter; 4.25ppm with a filter

Water Temp. From <-2 to >37 ⁰C (no limitation)

Salinity From <1 to >36 PSU (depending on mode)

Hold Time 24hr.* minimum

Power Requirements No filter mode: Range is between 4 to 6 kW

With filter mode: Range is between 6 to 50 kW

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Benefits Summary for Tankers• EcoOne™

• Less equipment and installation cost • Same Ecochlor reliability and customer support

• Easier operation for crew

• Lower maintenance needs

• Decreased power requirements

• EcoOne™Hybrid• All of the above

• The crew can either use the two-step or single-step process • Based on ballast water conditions

• Vessels that already have an Ecochlor® BWMS with filters installed can upgrade to the Hybrid option with minimal cost

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EcoOne™ BWMS Owner Case StudyShipowner: Maran Tankers

• Ship-Based Tests (SBT) for IMO BWMS Code & USCG

• Maran Atlas

• Maran Aries• Started in Sept 2020

• Five biological efficacy tests

• Testing expected to be completed in May 2021

(Lab tests have been completed in March 2021)

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Tank De-gassing Technology for MaritimeChoose Ecochlor. Choose Peace of Mind.Choose Ecochlor. Choose Peace of Mind.

A BWTS suitable for tanker operations?

Ecochlor BWM are in-service

Ballast Water Management System

Choose Ecochlor. Choose Peace of Mind.

Ask about our “Green Marine” Collaborations:

Lindesnes Lighthouse

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Tanker BWMS Retrofits in the Age of COVIDDebra DiCianna, Senior Compliance Engineer

2

• Wide range of flow rates that impact:• Treatment Rated Capacity of BWMS• Size of Equipment• Size of Piping

• Design challenges – hazardous spaces

• Installation challenges• Lowest CAPEX may not be the best

solution

Tanker BWMS Installation

11 May 2021 Riviera Tanker Shipping & Trade Week

3

• Scanning difficulties• Reduced yard times• Supply chain issues• Incomplete BWMS installation• Need to communicate issues to

IMO, Flag and Regulatory Authorities (i.e., USCG)

COVID Impacts


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• Scorpio signed a Fleet agreement with Ecochlor. At present, 56 Scorpio tankers have the Ecochlor BWMS installed.

• Due to increased material costs, the filter and treatment deckhouses costs were significant.

• A new design was developed of a ”filter enclosure”.

• Benefits - reduced:• Material costs• Construction costs• Piping• Ancillary equipment (i.e., fans, doors, etc.)• Footprint• Weight

Case Study – BWMS Design Improvements


2 x

Dimensions of shown units:

Deckhouse: 5.3 m x 8.1 m x 2.9 mEnclosure: 2 x (2.1 m x 4.7 m x 2.7 m)

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• Contact a specialist that can:• Evaluate the best BWMS for your

operations• Design a successful BWMS

installation• Provide assistance through

installation• Assist from beginning and through

operations to ensure compliance

Steps to Successful BWMS Installation


Fleet Evaluation Feasibility Studies / BWMS SelectionCompliance/Regulatory Assistance3D Laser Scans / SurveysDesign EngineeringProject ManagementInstallation OversightBWM Plans Vessel Support Services

www.choiceballast.com

ALL IN ONE BWMS SOLUTION

Date post:	05-Oct-2021
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