Standards for Handling Oily
Wastes in Machinery Spaces
Lou Mazzarone
Coffin World Water Systems
COFFIN WORLD WATER SYSTEMS
OILY WATER SEPARATOR
(OWS) DESIGN DRIVERS
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Certification
Price
Performance
Ease Of Operation
Reliability
Maintainability
Cost Of Operation
COFFIN WORLD WATER SYSTEMS
FACTORS INFLUENCING PERCEIVED
DESIGN DRIVER VALUE
• Business Type
– Shipyard, Operator, Owner
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Environmental Sensitivity
Technical Staffing
Crew Capability and Size
Voyage Length and Location
Maintenance Policies
Vessel Type
Ship Design
COFFIN WORLD WATER SYSTEMS
EXAMPLES OF OWS
TECHNOLGIES IN USE
• Separation Technologies
– Membranes
– Coalescing
– Centrifuges
– Adsorption
– Flocculation
COFFIN WORLD WATER SYSTEMS
Standards
• IMO MEPC 107(49) “Revised Guidelines and
Specifications for Pollution Prevention
Equipment for Machinery Space Bilges of
Ships”
• IMO MEPC.1 Circ 642 “2008 Revised
Guidelines for Systems For Handling Oily
Wastes in Machinery Spaces”
• ASTM F2283-04 “Standard Specification For
Shipboard Oil Pollution Abatement System”
COFFIN WORLD WATER SYSTEMS
MEPC 107(49) Attributes
Tested
• Oil Output Less Than 15 PPM Using 3 Test Fluids
– Determined by Laboratory Test of Output
• Unit Capacity
– Based On Flow Rate During Test, Using Specified Test
Fluids, Concentrations And Test Durations
• Continuous And Automatic Operation
– Determined By Continuous Operation Without Human
Intervention During Test
• Operation In Shipboard Environmental Conditions
– Determined By Laboratory Testing Including Vibration
Temperature Humidity And Inclined Operation
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MEPC 107(49) Testing
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Test Fluids/Test Minimum Duration
• Test Fluid A - marine residual fuel/ 3.75 Hours
• Test Fluid B - marine distillate fuel/ 1 Hour
• Test Fluid C - an emulsion/ 2.5 Hours
Fluid Type “C” was added to certification test requirements. This fluid
contains at least 3,000 ppm of emulsified oil and 100 PPM of Solids
Sample USCG
test fluids and
ULTRA-SEP™
discharge water
TYPE
FLUID “A”
TYPE
FLUID “B”
TYPE
FLUID “C”
COFFIN WORLD WATER SYSTEMS
CLEAN
DISCHARGE
WATER
What Test Fluid Is
Appropriate?
• Actual Bilge
– Wide Variations Ship To Ship
– Wide Variations On A Given Ship Day to Day
Actual Bilge 50 Samples At OWS Inlet
TDS
TSS
TO&G
CO6
C10
C22
Fe
MIN
PPM
960
16
20
ND
ND
4
1.2
AVG.
PPM
18008
762
1977
924
295
115
30
MAX
PPM
38010
15240
46400
2005
2818
17846
50
COFFIN WORLD WATER SYSTEMS
Future Testing
Recommendations
– Separator Tested Together With Monitor
– Fluid Temperature Be More Precisely
Specified And Emulsion Be More Stable
And Consistent Between Tests
– Continuous Running Be Better
Monitored
– Configuration Control of Production
Systems
COFFIN WORLD WATER SYSTEMS
IMO MEPC.1 Circ 642
• 2008 Revised Guidelines for Systems For
Handling Oily Wastes in Machinery
Spaces
– Minimize Oily Bilge Water
• Separate Clean Drains
• Route Oily Drains Direct to Oily Residue (Sludge)
Tanks
– Pre-treatment with Bilge Primary Tanks
• Attempts To Minimize The Variation In Bilge
Presented To The OWS
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IMO MEPC.1 Circ 642
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IMPACT OF IBTS
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ASTM F2283-04
– Shipboard Oil Abatement System
• Looks At The Entire Ship Bilge Processing
System Of Which The Oily Water Separator
Is Part
• Under Revision
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F2283-04 Notational System
Diagram
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ASTM F2283-04
• Suggested Revisions
– Standardize Terminology To Conform With IMO
– Expand Bilge Management Section To Create A
Bilge System Design Section
– Requirements Should Be Technology Neutral
– Be Less Prescriptive In Equipment Design
Features
– Minimize The References To Other Documents
– Notional System Diagram Be Updated to take
into account MEPC 107(49) equipment and
MEPC.1 Circ.642
COFFIN WORLD WATER SYSTEMS