Learning from BWMS implementation: where do we go from here?18 February 2021 • 09:00-09:45 GMTSponsored by

#ballastwater

Ballast WaterWebinar Week

Part of

15-19 February 2021

Presentation & sponsor documents:Page 2: Dimitrios Tsoulos, De Nora Marine TechnologiesPage 7: Michael Silveri, Halogen Systems, Inc.Page 13: Michael Lehmann, DNV GLPage 19: Halogen Systems company information

WATER MADE EASY

INDUSTRIALMUNICIPALENERGYMARINE

Learning from BWMS implementation: where do we go from here?Dimitrios Tsoulos

Sales Manager EMEA - BALPURE® BWMS

2WATER MADE EASY

BALPURE® BWMS - Process MonitoringORP based technology

The system monitors whether the ORP is indicating residual sodium hypochlorite.

The ORP functions as a Go-No-Go gauge to indicate whether there is residual hypo.

Drivers

• Simple control ensures environmental safety and technical reliability

• Equipment, sensors and controls need to fit the application and environment

Answer

• BALPURE® incorporates intelligent ORP control vs commonly used TRO control

ORP (oxidation reduction potential) is a value, measured in mV that expresses the oxidizing (disinfection) power of a water.

ORP Sensor is used to provide qualitative measurement of total residual oxidants (in mV) in the ballast water prior to entering the ballast tanks and prior to discharge

3WATER MADE EASY

BALPURE® BWMS - Process MonitoringORP vs TRO

ORP Sensor DPD-based TRO analyzer

Simple electrical sensor Complex chemical sensor

Inline instrument Sample is taken and analyzed in a side stream

Little maintenance required; simple steps one-point calibration.

Complex maintenance; Reagent consumable required

Real time monitoring Delay for TRO measurement

Simple installation. Can be installed in hazardous areaRequires separate enclosure to be installed in hazardous area, making access and maintenance challenging

4WATER MADE EASY

BALPURE® BWMS - Process MonitoringORP Sensors

ORP Probe

Installation: Simple and Flexible

Performance: Robust – Long Operational Life

Maintenance: Simple Calibration Procedure – low OPEX

ORP Analyser

Info.dnwt@denora.com

www.denora.com

Dimitrios Tsoulos

Regional Sales Manager EMEA

De Nora Marine Technologies

Mob: + 30 6947999921

Email: Dimitrios.tsoulos@denora.com

A Simpler TRO Measurement Method

M I C H A E L S I LV E R I

M I K E S @ H A LO G E N S Y S . C O M

W W W. H A LO G E N S Y S .C O M

H A LO G E N S Y S T E M S , I N C .

What is Important in TRO Monitoring▪Periods of non-use equally important to usage

▪Short sampling lines

▪Periodic TRO discharge checks

Direct pipe insertion amperometric

Typical DPD instrument

Reduce Points of failure◦ Eliminate sampling lines, pumps, valves or

waste lines

◦ TRO readings in 45 seconds

◦ Self-cleaning

◦ No reagents

◦ ISO 15839 ballast/deballast cycles without calibration

◦ No filters- even >1,000 ppm TSS

Direct Pipe InsertionAmperometry

IECEx Sensor

Simplicity is important▪HOCl + H+ + 2e- → Cl- + H2O

▪Opposite of a chlorine generator

▪We measure electrons during this reaction

DPD Vs DPI Amperometric Maintenance

Korean Register of Shipping (KRS). (n.d.). BWMS Technical Information for Shipowners and Inspectors (translated)

*Amortized

ServiceDPI

AmperometricDPD

Reagents NoneReagents every 30 to 60 days of

operation

Replace Wear parts

24 months NA

Annual Costs USD $120 * ~$600

Annually NAPump requires overhaul every year due to corrosion by chemicals and seawater

Monthly NA Checking and Cleaning T-strainer

Quarterly NAChecking and Cleaning check valve and pump tubing

Semi- annually NA Two-way solenoid valve cleaning

A New Option for TRO Measurement

▪Fast TRO readings

▪Also measures salinity, temperature, ORP

▪Lower installation cost

▪Lower cost of operation

info@halogensys.com

www.halogensys.com

DNV GL © 18 February 2021 SAFER, SMARTER, GREENERDNV GL ©

Michael Lehmann18 February 2021

MARITIME

Verification of compliance monitoring devices (CMD)

1

Ballast Water Webinar Week - Learning from BWMS implementation: where do we go from here?

DNV GL © 18 February 2021

Use of compliance monitoring devices (CMD) in BWMS commissioning testing

2

Biological test at BWMS commissioning becomes mandatory from 1 June 2022 (MEPC.325(75)) Most CMD used for commissioning testing are based on ATP

or fluorometry. Several laboratories offer detailed analysis in addition to

analysis by CMD for organisms ≥50 µm or use CDM only for organism 10-50 µm– Detailed analyses refuted 54% of the failures that had been

determined using only indicative analyses.(Souce: White Paper By SGS Global Marine Services)

There is currently no requirement to validate the use of CMD– IMO commissioning testing guidance

(BWM.2/Circ.70/Rev.1) only refers to indicative analysis methods listed in BWM.2/Circ.42/Rev.2

(Souce: White Paper By SGS Global Marine Services)

DNV GL © 18 February 2021

Protocol for the verification of CMD

Revised proposed protocol for the verification of ballast water compliance monitoring devices submitted to PPR 8 (22 - 26 March) by Canada, Denmark, Germany and International Council for the Exploration of the Sea (ICES)

1) Laboratory tests using prepared challenge water with dilution series of laboratory cultures of organisms

2) Laboratory tests using ambient challenge water

3) Field tests on treated discharged water

3

DNV GL © 18 February 2021

Comments on proposed verification protocol

Comments by IACS and France

– Treated ballast water consists of a mixture of dying, dead and surviving organisms.

– The ability of the device to differentiate the viable and non-viable organism is to be evaluated.

– Treated and untreated challenge water obtained in connection with land-based testing of BWMS may be used.

Comments by France

– suggest performing CMD verification on the two main types of BWMS related to the way these technologies act on organism

– Active substances

– UV

– Protocol lacks specific verification criteria to ensure harmonized verification of the CMD

4

DNV GL © 18 February 2021

Need to focus also on adequate sampling methods

Large volumes must be sampled to have a representative sample to determine that discharge samples do not exceed the D-2 standard

– <10 organisms ≥50 µm per m3

– <10 organism 10-50 µm per mL

IMO commissioning testing guidance (BWM.2/Circ.70/Rev.1) requires the total sample volume should be at least 1 m3.

CMD require concentrated samples for organisms ≥50 µm

– plankton net

– sampling device

5

DNV GL © 18 February 2021

SAFER, SMARTER, GREENER

www.dnvgl.com

The trademarks DNV GL®, DNV®, the Horizon Graphic and Det Norske Veritas®

are the properties of companies in the Det Norske Veritas group. All rights reserved.

6

Michael Lehmannmichael.Lehmann@dnvgl.com+47 992 95 791

1 | P a g e O C T 2 0 2 0

DIRECT PIPE INSERTION TRO SENSOR The Sensor measures chlorine using amperometry without the use of membranes, electrolytes

or reagents requires far less maintenance than conventional systems. It measures chlorine from

0 to 15 ppm. Chlorine (TRO) measurements are internally compensated for temperature and

salinity changes.

Measures

• PPM Free Chlorine or Bromine using 3 electrode Amperometric method

• Integrated Conductivity or Salinity (PSU)

• ORP

• Temperature using a digital sensor

• pH- fast wetting

Features

• Self-Cleaning system that cleans all the electrodes

• No membranes or electrolyte replacements

• No waste stream required

• Flow independent measurement

• Direct, in pipe installation

Benefits

• Long interval between calibrations

• Lower maintenance frequency

• Lower installation costs

• Lower maintenance costs

FLOW INDEPENDENT MEASUREMENT The sensor can operate from zero to 5 meters per

second of velocity without significant change in signal. The signal is immune to changes in

pressure, both momentary spikes and extended changes. No waste stream is required. No flow

cell needed.

SELF CLEANING Continuous cleaning of the pH and chlorine electrodes ensures that the

measurements will be accurate, further reducing the need to recalibrate, removing salts oils and

biologicals. The chlorine sensor can operate in seawater with high hardness, alkalinity, and salt

without scaling.

COMPACT the highly-integrated design perform signal conditioning on board and is resistant to

external noise and stray electrical currents.

Figure 1: SWN-P for side stream

2 | P a g e O C T 2 0 2 0

Sensors are available in several configurations. A display is necessary for calibration and local monitoring. These functions can also be implemented in a PLC using the Modbus protocol**.

DISPLAY/ TRANSMITTER The display enables remote display and calibration of the sensor parameters. Two 4-20 mA

outputs are provided for interfacing with PLC. The Sensor and Display use Modbus RTU for

communication.

Features

• Four-line transflective displays all parameters at once

• 2) 4-20 mA outputs

• Modbus output

• Use to calibration or check local operation of sensors

• 24 VDC Input voltage

Measurement Parameters (all + Units)

Product Description Model No. Salinity PSU Approvals

Hot Tap SWN-P-HT2 + 0.2 to 35 DNV TA

Side Stream (STD) SWN-P+ 0.2 to 35 DNV TA

Explosion Proof EX-HT4 /EX-STD 0.2 to 35 IECEx; ATEX Zone 1 Group IIC; DNV TA

Display/Transmitter 4-20 mA & Modbus

D01 NA DNV TA

Measurement Specifications Range PSU Accuracy

Chlorine or Bromine 0 to 15 PPM 0.2 to 35 ±15% or 0.06 ppm, whichever is greater

Chlorine Limit of Detection (LOD) 0.0 to 0.25 0.03

Oxidation Reduction Potential (ORP) -1100 to 1100 mV NA

Conductivity 200 to 50,000 µS ±10%

pH 5 to 12 ±10%

Temperature 0 to 100° C 0.1

Cycle time 45 seconds

Limit of Detection (LOD) 0.03 ppm

Figure 2: Display D01

3 | P a g e O C T 2 0 2 0

IECEX MODELS EX-P-HT4/EX-P-STD

ALL MODELS Models In Pipe (Hot Tap) Side Stream

Non-Hazardous

SWN-P-HT2

SWN-P+

Hazardous-Zone1 Group IIC

EX-P-HT4

Side stream chamber with IECEx sensor with sampling port

EX-P-STD

• IECEx marking string: Ex db ib IIC T5 Gb

• Zone 1 Gas Group IIC

• Environmental: IP65

• IECEx Certificate

• Complies with:

• DNV 2.4,

• LR Type Approval System Test SpecificationNumber 1,

• IMO Rule MEPC.174(58) Annex 4

• IEC 60529 2.2 Edition, revised 2015.

• EN 60529 Revised 2013

CONTACT:

Halogen Systems, Inc.

919 Incline Way

Suite 11

Incline Village, NV 89451

USA

Voice: 01 775 832-0495

Fax: 01 775 548-8558

www.halogensys.com

info@halogensys.com