Machinery room
The treatment skid
Filters, pipework and controls in one place.
NSI-005 →Ballast water and emissions
Treat the water, keep the record.
NSI-005 Ballast Water Treatment Systems and related courses from the Nanak Shipping Institute, with a plain-language process stepper to see how the system works.
01 · Why it matters
Water carries more than weight
Intake
Ballast taken on in one port can carry organisms to another.
Treat
A treatment system is fitted to deal with that risk.
Discharge
Water leaving the ship must meet the standard.
Record
Operations are written up for port state and audit.
The course itself is NSI-005 Ballast Water Treatment Systems at the Nanak Shipping Institute.
02 · Interactive · Process stepper
Follow the water through the ship
Pick a stage to read what happens and what the crew watches for. This is an explanation, not course content.
Stage 1
Intake
Ballast water is drawn in through the sea chest when the ship takes on ballast. This is where organisms from the port waters enter the system.
- Pumps draw water in at the port
- The system is lined up before pumping starts
- Intake location and time are noted
Stage 2
Filtration
In many systems the water first passes a filter that removes larger particles and organisms before treatment.
- Filters catch larger material
- Pressure readings show when filters need attention
- Backflushing keeps flow steady
Stage 3
Treatment
The treatment step makes remaining organisms harmless. Systems differ: some use ultraviolet light, others use chemical or electrochemical methods.
- Method depends on the system fitted
- Sensors confirm the unit is working
- Alarms flag anything outside normal range
Stage 4
Holding
Treated water is held in ballast tanks while the ship is under way, supporting trim and stability for the voyage.
- Ballast plan sets which tanks are used
- Tank levels are monitored
- Stability stays within limits
Stage 5
Discharge
When ballast is released at the next port, the water is treated again as needed so that it meets the discharge standard before leaving the ship.
- Discharge follows the ballast plan
- Any neutralising step is completed first
- Port rules are checked ahead of time
Stage 6
Records
Every operation is written up so that port state officers and auditors can follow what happened. Good records are as important as good equipment.
- Ballast water record book kept current
- Equipment alarms and maintenance logged
- Crew trained to complete entries consistently
03 · The course
NSI-005 at the Institute
Ballast Water Treatment Systems is one of the featured courses at the Nanak Shipping Institute, listed in its safety and operations area.
The Institute is led by Capt. Dilip Narsian, Master Mariner. See the director profile.
- 01Featured course
- 02Safety and operations
- 03Led by a Master Mariner
04 · Around the course
Six related learning areas
The catalogue has 200+ courses. These are the ones that sit close to emissions and operations.
Ballast Water Treatment
NSI-005, featured.
Featured →Engine Room Resource Management
NSI-003, teamwork below deck.
Featured →Advanced Automation and Control
NSI-009, systems and control.
Advanced →Enclosed Space Entry
NSI-008, safe entry practice.
Featured →Leadership and Human Element
NSI-019, people and decisions.
Advanced →Auditing and ISO
Auditing programs in the catalogue.
Catalogue →05 · Good records
The record book is half the job
Port state officers and auditors read the paperwork first. These habits keep it clean.
- 01
Write it as it happens
Entries made at the time are the ones people trust.
- 02
Note alarms and faults
Equipment trouble belongs in the record too.
- 03
Match the plan
Operations should follow the ballast plan on board.
- 04
Train the writers
Everyone who makes entries should write them the same way.
06 · On board
Where ballast work happens
Deck
Valves and lines
Where the plan turns into handwheels.
Course catalogue →
Classroom
Learning it first
Understand the system before you run it.
Ask the Institute →Interactive · Enquiry docket
Ask about ballast water training
07 · Beyond training
Support around the course
Nanak group services
The Nanak group: ship management, training and careers
Maritime training · India
Focused maritime learning across navigation, engineering and safety, led by Capt. Dilip Narsian, Master Mariner.
Visit nanakshipping.com ↗- Navigation & bridgeAwareness, teamwork and decisions: bridge team management and navigation courses.
- Engineering & machinerySystems, control and understanding: engine room resource management and automation.
- Safety & operationsPreparation, practice, responsibility: enclosed space entry, ballast water treatment.
- Featured trainingBridge Team Management Refresher, Engine Room Resource Management, Ballast Water Treatment Systems.
- Advanced trainingAdvanced Automation & Control Engineering, Leadership & Human Element course.
- 200+ maritime coursesDeck, engine, tanker and cargo, catering, offshore, security, simulator and ISO auditing.
Ship, crew and labour · India
International technical ship management, crew management and licensed seafarer labour supply from India.
Visit nanakship.com ↗- Technical ship managementSuperintendence, planned maintenance, drydocking, Class and Flag State compliance.
- Crew managementSTCW and MLC manning, credential vetting, training, welfare, travel and payroll.
- International labour supplyCertified electricians, 6G/TIG/MIG welders, structural fitters and skilled helpers.
- Dry-dock & riding repair squadsDry-dock superintendence and certified squads that board at anchor or en route.
- Pre-purchase vessel auditsIndependent technical audit of a vessel before you buy.
- Spares, procurement & liaisonMarine spares and procurement, Flag State and Class liaison.
Merchant Navy careers · India
Your complete gateway to Merchant Navy careers, from IMU-CET to Sri Lanka CoC.
Visit procareertek.com ↗- IMU-CET coachingExpert coaching, 200+ practice papers and AI mock analytics.
- Deck officer programsDNS, BSc Nautical Science and Officer of Watch pathways.
- Engine officer programsGME, BTech Marine and Chief Engineer pathways.
- Rating coursesGeneral Purpose rating and engine rating courses.
- Sri Lanka CoC (White List)Facilitation of Sri Lanka Certificate of Competency under STCW recognition.
- Career guidance & placementA full cadet-to-captain roadmap, scholarships and loan guidance.
08 · FAQ
Ballast water questions
Open a line to read the answer.
NSI-005 Ballast Water Treatment Systems is a featured course at the Nanak Shipping Institute, listed in its safety and operations area. Details and enrolment questions are on the featured training page, and the institute replies through its contact page.
It treats ballast water taken on and discharged by a ship so that organisms are not carried between ports, in line with IMO ballast water rules. The stepper on this site explains the general flow. For the formal course, see the Nanak Shipping Institute catalogue.
No. The stepper is a plain-language explanation of the general ballast water treatment flow, not course material and not an operating manual. For actual training, enquire about NSI-005 through the Nanak Shipping Institute contact page.
Typically officers and engineers who operate, supervise or maintain the treatment system, and those who keep the related records. The institute confirms suitability by rank and experience, so share your crew list through the institute enquiry page and ask for guidance.
Beyond NSI-005, the catalogue includes NSI-009 Advanced Automation & Control Engineering and NSI-019 Leadership & Human Element, plus auditing and ISO programs. See the advanced courses page for details and ask which combination supports your fleet.
Use the enquiry docket on this site, call +91 98197 72041, or write to the Nanak Shipping Institute, which is led by Capt. Dilip Narsian, Master Mariner. Its director profile explains the approach behind the training.
Get in touch
Ask about NSI-005
Tell us the vessel, the standard or the crew need and your timeline. A marine professional replies, not a sales script.