What substances does the sewage pump discharge from the shipboard CHT tank to the pier side?

The sewage pump is responsible for discharging sewage from the shipboard Collection, Holding, and Transfer (CHT) tank directly to the pier side. This process is crucial for maintaining sanitary conditions on the vessel and ensuring that waste management practices comply with environmental regulations.

Sewage, which is primarily composed of human waste and grey water, is the key substance intended for discharge. When identifying the components likely discharged to the pier side, it's essential to understand that "seawater" is not a component directly related to the sewage system. Instead, seawater may sometimes be used for other purposes, such as ballasting or washing down, but it is not part of the discharge from the sewage system.

This understanding highlights the specific role of the sewage pump and the nature of the waste it handles, reinforcing the operational protocols for discharging waste in maritime environments.