It is a complete guide for Sewage Treatment Plant (STP) onboard ship. This is a good collection of notes prepared in the purview of Marine exams in a simple and easy understandable language with bullet points.
As it is impossible to answer all questions at a time it is done on timely basis. please comment below or contact on admin@marinesite.info, once you find any important area, missed out. Also contact us, if you wish to answer any of the questions listed.Basics
> Explain Working Principle of STP with the help of diagram
> What is BOD ( Biological Oxygen Demand)?
> Why anaerobic bacteria is not used in STP?
> Why there is a vented loop or Anti-siphon tube after STP and before overboard Valve?
> What is BOD ( Biological Oxygen Demand)?
> Why anaerobic bacteria is not used in STP?
> Why there is a vented loop or Anti-siphon tube after STP and before overboard Valve?
> What are the tests in STP
Maintenance
> Sewage Treatment Plant Maintenance Routines
> Reason for grey colour discharge from STP?
Troubleshooting
> Reason for STP blower failure and Action taken> Reason for grey colour discharge from STP?