ballast water treatment system

To restrict the spread of invasive species through shipping, the International Maritime Organization (IMO) Ballast Water Management Convention was introduced in 2004 and entered into force in 2017. Under the convention, ships must comply to the D2 standard, which limits the number of live organisms allowed in ballast water discharge.

From 8 September 2017 Ships must be manage their ballast water with certified ballast water management system (BWMS) to meet requirements of D2-standard, So that aquatic organisms and pathogens are removed or rendered harmless before the ballast water is released into a new location. This will help prevent the spread of invasive species as well as potentially harmful pathogens. The aim of the BWMS is to treat the ballast water and limit the number of living organisms being transported via ballast water.

 EGCS (Exhaust gas cleaning system)

The IMO MARPOL regulations limit the sulphur content in fuel oil. This means ships must use fuel oil which is inherently low enough in sulphur, or install an appropriate exhaust "alternative” method, in order to meet IMO requirements.

Ships limit the air pollutants by installing exhaust gas cleaning systems, also known as “scrubbers”. This is accepted by flag States as an alternative means to meet the sulphur limit requirement. These scrubbers are designed to remove sulphur oxides from the ship’s engine and boiler exhaust gases. A ship fitted with a scrubber can use heavy fuel oil, since the sulphur oxides emissions will be reduced to a level equivalent to the required fuel oil sulphur limit. Ferscom will provide the engineering services to installing the EGCS.

 The BWM Convention - D-2 standard

The D-2 standard specifies that ships can only discharge ballast water that meets the following criteria:

  1. less than 10 viable organisms per cubic meter which are greater than or equal to 50 micrometers in minimum dimension;
  2. less than 10 viable organisms per milliliter which are between 10 micrometers and 50 micrometers in minimum dimension;
  3. less than 1 colony-forming unit (cfu) per 100 milliliters of Toxicogenic Vibrio cholerae;
  4. less than 250 cfu per 100 milliliters of Escherichia coli; and
  5. less than 100 cfu per 100 milliliters of Intestinal Enterococci.
 Ferscom Retrofit Engineering Phases

3D Laser scanning and On-board survey

  • Ballast water Treatment system (BWTS)
  • Exhaust gas cleaning system (EGCS)

Retrofit Design and Detailed Engineering

Class Communication and Approval

Project Management

Timeline for the BWTS Retrofit Engineering

BWTS (Ballast water treatment system) retrofit engineering will be completed in 4 Weeks

Fresh Layouts
  • Conceptual Modeling
  • Retrofit Equipment location
  • New Pipeline Tie in Points
Detailed design
  • Piping Design and spool defining
  • Structural design
  • Integrated piping Diagram
Production drawing
  • Isometric pipe spool drawing
  • Foundation drawing
  • Existing modification
Electrical Design
  • MSBD Power Distribution
  • Electrical Load analysis
  • Breaker selection
Material list
  • Valve List
  • Piping and structural list
  • Cable schedule and cable list

EGCS (Exhaust Gas cleaning system ) retrofit engineering will be completed in 6.5 Weeks