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MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
MARPOL Annex IV: Sewage Pollution Prevention
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MARPOL Annex IV: Sewage Pollution Prevention

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MARPOL Annex IV: Sewage Pollution Prevention

MARPOL Annex IV: Sewage Pollution Prevention

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  • 1.
    • SEWAGE POLLUTION PREVENTION
    • Marpol Annex IV
    • September 2009
  • 2. SEWAGE POLLUTION PREVENTION ( Marpol 73/78 Annex IV)
    • 1. Shipboard Sewage Pollution Sources:
    • • drainage and other wastes from any form of toilets and urinals;
    • • drainage from medical premises (dispensary, sickbay,
    • etc.) via wash basins, wash tubs and scuppers
    • located in such premises;
    • • drainage from spaces containing living animals;
    • • other waste waters when mixed with the drainages
    • defined above.
    • (Regulations not applicable to the disposal of:
    • drainage from dishwasher, shower, laundry, bath and washbasin
    • d rains - grey water)
  • 3. SEWAGE POLLUTION PREVENTION
    • 2. Ships application :
    • • new ships of ≥ 400 gross tons
    • • new ships < 400 gross tons
    • certified to carry over 15 persons
    • (new ships: building contract or keel laid on/after
    • 27 September 2003 or delivered on/after 27 September 2006)
    • • existing ships of ≥ 400 gross tons
    • • existing ships < 400 gross tons
    • certified to carry over 15 persons
    • (on or after 27 September 2008)
  • 4. SEWAGE POLLUTION PREVENTION
    • 3. Equipment requirements :
    • • discharge pipeline fitted with the standard discharge connection *
    • and
    • • approved sewage treatment plant
    • or
    • • comminuter/disinfection system with temporary means of storage
    • or
    • • holding tank
    • * applies to all new ships contracted for construction on or after January 1, 2007
  • 5. SEWAGE POLLUTION PREVENTION
    • • An approved sewage treatment plant shall be of a type approved by
    • the Administration, following the IMO standards and test methods *
    • ( its tests results are noted on the ISPPC and the effluent does not produce visible floating
    • solids nor cause discoloration of the surrounding water )
    • • A sewage comminuting and disinfecting system approved by the Administration
    • shall be fitted with temporary storage of sewage when the ship is less than 3
    • nautical miles from the nearest land
    • • A sewage holding tank shall: - have appropriate capacity for the retention of all sewage, - be correctly constructed with a means to indicate visually the amount of its
    • contents, and - be equipped with the ship’s discharge line to port / terminal reception facilities
    • fitted with the standard discharge connection
    • * • Sewage treatment plant should be approved in accordance with IMO Resolution
    • MEPC 2(VI) – December 1976 Standard
    • • IMO Resolution 159(55) Adopted October 2006 is applicable for equipment
    • installed on board on or after 1 January 2010.
  • 6. SEWAGE POLLUTION PREVENTION
    • 4. Sewage Treatment System Capacity
    • - no Marpol regulations and guidelines for handling
    • capacity of any plant or holding tank
    • - the capacity depends on:
    • • type of flushing system,
    • • the number of people onboard,
    • • ship’s type,
    • • trading pattern, etc).
    • Note: Different administrations have suggested different
    • quantities of sewage and grey water effluent.
  • 7. SEWAGE POLLUTION PREVENTION
    • 5. Control of discharge sewage ( based on the type of equipment on the ship )
    • The discharge of sewage into the sea is prohibited , except when:
    • - the ship is discharging comminuted and disinfected sewage using an
    • approved system at a distance of more than 3 nm from the nearest land; or
    • the ship is discharging sewage which is not comminuted and disinfected at a distance of more than 12 nm from the nearest land, provided that in any case, the sewage stored in holding tanks or sewage originating from spaces containing living animals * , shall not be discharged instantaneously but at a moderate rate when ship is en route and proceeding at not less than 4 knots; or
    • the ship is discharging sewage using an approved sewage treatment plant,
    • Click here for Resolution MEPC.159(55) “ Revised Guidelines on implementation of effluent
    • standards and performance tests for sewage treatment plants” which will apply to plants installed
    • onboard on or after 1 January 2010 and will replace the resolution MEPC. 2(VI) .
  • 8. SEWAGE POLLUTION PREVENTION
    • 5. Control of discharge sewage (based on discharge distance)
    • • while operating within 3 nm from the nearest land discharge
    • prohibited unless properly treated in approved sewage treatment plant
    • • discharge within 3 – 12 nm from nearest land must either :
    • meet effluent requirements within 3 nm from nearest land or
    • the ship is discharging comminuted and disinfected sewage
    • using an approved comminuter/disinfection system
    • • discharge at a distance of more than 12 nm from nearest land must
    • either: meet effluent requirements within 3 nm or within 3 – 12 nm from
    • the nearest land or the sewage that has been stored in holding tanks
    • shall not be discharged instantaneously but at a moderate rate
    • when the ship is en route and proceeding at not less than 4 knots;
    • Click here for: ‘’RECOMMENDATION ON STANDARDS FOR THE RATE OF DISCHARGE
    • OF UNTREATED SEWAGE FROM SHIPS”
  • 9. SEWAGE POLLUTION PREVENTION
    • 6. Exceptions
    • The discharge of sewage into the sea is allowed when:
    • - securing the safety of life or the ship; or
    • - the discharge of sewage is as result from damage
    • to a ship or its equipment if all reasonable precautions have been taken before and after the occurrence
    • of the damage, for the purpose of preventing or minimizing the discharge
    • Note: some countries have sewage ‘no discharge areas’ regardless of
    • how well it is treated
  • 10. SEWAGE POLLUTION PREVENTION
    • 7. Surveys and Certification
    • An International Sewage Pollution Prevention Certificate
    • (ISPPC) shall be issued:
    • • after an initial or renewal survey
    • • by the Administration or organization duly authorized by it
    • • for a period not exceeding five years.
    • Note: Certificate shall cease if the relevant surveys are not completed,
    • if the certificate is not endorsed, upon transfer of the ship to the flag
    • of another State.
    • Click here to open ISPPC example
  • 11. SEWAGE POLLUTION PREVENTION
    • 8. Reception facilities
    • • Each Party to the Convention has to equip ports
    • and terminals with facilities for the reception of sewage
    • • Each Party shall notify the IMO
    • of all cases where the facilities provided
    • under this regulation are inadequate
    • Remarks:
    • Some ports (particularly members of the Paris MOU) now require advance warning
    • of waste to be disposed of. The waste includes oil, chemicals, ballast, sewage
    • and garbage.
    • The method of reporting this is to send Company form SAF13 to the agents prior to
    • arrival. Note that this form may be required even if no waste is to be landed. The local
    • agent is to be asked to confirm accordingly. Click here for Waste Delivery Receipt form
  • 12. SEWAGE POLLUTION PREVENTION
    • 9. Port State Control on operational requirements *
    • 1. when in port a ship can be inspected by authorized PSC officers
    • 2. if the master or crew are not familiar with essential shipboard
    • procedures preventing pollution by sewage, all should be done to
    • ensure that the situation has been brought to order.
    • 3. if ships equipment is broken or missing or ship has suffered damages
    • en route, Port Authorities must be informed accordingly and if remedies
    • were agreed with the flag state, the ship is not to be detained.
    • * Refer to the Procedures for port State control resolution
    • A.787(19) as amended by resolution A.882(21);

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