In January 2020, the IMO 2020 global sulphur cap came into force to improve air quality, preserve the environment and protect human health. To comply with this sulphur reduction a popular solution is to install an exhaust gas cleaning system (EGCS).

For this, wet scrubber systems use wash water to remove the pollutants from the exhaust gas. Therefore the wash water being discharged must be monitored at all times to ensure it is within the limits set by the regulating body.

There are IMO regulations for water quality parameters including Polycyclic Aromatic Hydrocarbons (PAHs), pH and turbidity prior to discharge into the ocean.

With over 35 years experience designing equipment for the marine environments, Rivertrace has developed our SMART ESM. The SMART ESM designed to MEPC.259(68) and is suitable for both the inlet and outlet of a EGCS, measuring and recording the required parameters of PAH, Turbidity, Temperature and pH.

The monitor can be installed on new build of retrofit systems and can accommodate open-loop, closed-loop and hybrid scrubber systems.

The innovative measuring cell design allows for unique Plug and play maintenance design. Each measurement parameter is enclosed in a separate cassette slotted inside the measuring cell around the sample tube.

This allows the calibrated parts to be swapped without the need of isolating the sample which flows through a glass tube in the centre of the cell.
Features
  • Compatible with Open Loop, Closed Loop and Hybrid systems
  • Flexible configuration at each sample point for the relevant measurement parameters – PAH, pH, Temperature and Turbidity
  • Suitable for inlet and outlet monitoring
  • Plug and play design for each measurement parameter for easy maintenance
  • Calibration Check Kits available
  • On screen historical data graphs showing Instant/ Hourly/Daily/Weekly figures
  • Automatic cleaning of optical path

Specifications

PAH Range

  • 0 μg/L to 4500 μg/L

PAH Accuracy

  • 5 % of measurement reading

PaH Measurement Principle

  • UV Fluorescence

Turbidity Range

  • 0 - 500 NTU

Turbidity Accuracy

  • 0.1 NTU up to 100 NTU, 1 NTU thereafter.

Turbidity Measurement Principle

  • IR Scattering

pH Range

  • 0 - 14 pH

pH Accuracy

  • 0.1 pH

pH Measurement Principle

  • pH Electrode

Sample / Clean Water Temperature Range

  • 0° C to 40° C*
  • *Higher optional with Heat Exchanger

Sample / Clean Water Pressure Range

  • 1 to 9 bar

Optimum Measuring Pressure (Sample / Clean)

  • 3 bar

Required Air Supply Pressure Range

  • 4 - 6 bar

Compressed Air Normal / Average Consumption

  • 450 mL / Hr

Sample / Clean Water Flow Rate Range

  • 1 to 4 LPM

Ambient Temperature Range

  • 0° C to 50° C

Supply Voltage

  • 230 Vac 50/60 Hz

Outputs

  • Modbus
  • 4-20 mA

Response Time

  • 266 seconds at 1 l/m flow rate

Storage

  • Internal SD Card
  • Downloadable to External USB

IP Rating

  • IP66

Wetted Parts Material

  • uPVC, Nylon, Black acetal copolymer and peek

Approvals

  • DNV Type Approval

  • Exhaust Scrubber Washwater Discharge
  • MEPC 259(68)

show more