Class 1 (Chief Engineer) Engineering Management 📅 Oct 2021

Exam Question

Regarding Ballast Water Management Convention explain

(a) Ballast Water Exchange Standard

(b) Ballast Water Performance standard

(d) Approval methods for treatment system using active and non-active substances

(e) What are the marine pollution problems related to port development such as ballast water, dredging and spills from ships

Reference Answer

### (a) Ballast Water Exchange Standard (Regulation D-1)
The Ballast Water Exchange Standard (Regulation D-1) of the IMO's Ballast Water Management (BWM) Convention is a method to reduce the risk of transferring Harmful Aquatic Organisms and Pathogens (HAOP) by replacing the coastal water taken on in the departure port with open-ocean water. This method is considered less effective than treatment to the D-2 standard but is a recognized compliance option during the Convention's phase-in period.
**Key Requirements:**
1. **Volumetric Efficiency:** Ships must conduct an exchange with an efficiency of at least 95% volumetric exchange of ballast water.

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