waste oils, waste oil/water
mixtures
EMI accepts waste
oil generated through many sources, such as the clean up of
virgin and non-virgin petroleum spills to land or water,
maintenance activities, cleaning of storage tanks and
deballasting operations. In addition to these sources, EMI
accepts waste oil from industrial manufacturing,
automotive and other commercial sectors. Waste oil
received at EMI is typically contaminated by water, scale
and/or grit. Waste
oil contaminated with Polychlorinated Biphenyls (PCBs)
over 50 ppm, or otherwise classified as PCB Waste (40 CFR
761), is not accepted at EMI.
Documents
Required for Approval and Shipment of This Waste Stream
Acceptance, Treatment
And Disposal of This Waste Stream
EMI
Waste Profile Form
(ADOBE PDF DOCUMENT)
Waste Oil definition
Chapter 860 Sections 3.S and 4.A
State of Maine Waste Oil Management Rules:
''Waste oil" means a petroleum-based oil which, through use or handling, has become unsuitable for its original purpose due to the presence of impurities or loss of original
properties. It must have sufficient liquid content to be free
flowing.
Identification of Waste Oil:
A. Waste oil includes, but is not limited to, the following petroleum based oils (used or unused) which have become unsuitable for their original purpose due to the presence of impurities or loss of original properties.
- automotive crankcase and lubricating
oils
- industrial tube oils including metal working oils, railroad and marine oils and turbine lubricating
oils
- industrial non-lube oils including hydraulic, transmission, quenching oils and
non-PCB (less than 50 ppm) transformer
oils
- oil recovered from oil tank cleaning operations and deballasting
operations
- oil spilled to land or
water
Exclusions:
The following materials are not waste oil for the purpose of this rule:
- oily waste debris generated from the clean-up of oil
spills
- water generated from oil/water separation processes at a waste oil
facility
- mineral spirits having a flash point less than 60° C (140°
F)
Standards
Defining Specification Waste Oil
& Off Specification Waste Oil
Specification Waste Oil:
Waste oil which meets all of the following standards which
does not otherwise exhibit hazardous waste
characteristics, and which has not been mixed with a
hazardous waste may be offered for sale as a fuel
supplement for use in non-industrial boilers and
non-industrial furnaces as well as in industrial boilers
and industrial furnaces:
Constituent/Property
Allowable Level*
| Arsenic |
5.0
ppm maximum |
| Cadmium |
2.0 ppm
maximum |
| Chromium |
10
ppm maximum |
| Lead |
100 ppm
maximum |
| Polychlorinated
Biphenyls (PCBs) |
10
ppm maximum |
| Total
Halogens |
1,000
ppm maximum |
| Flash
Point |
100°
F minimum |
*Concentrations
are in parts per million on a dry weight basis. Values for
metals are for total metal concentration, not EP Toxic
concentration.
Off-Specification Waste Oil: Waste oil which meets
all of the following standards, which does not otherwise
exhibit hazardous waste characteristics, and which has not
been mixed with a hazardous waste may be offered for sale
as a fuel supplement for use only in industrial boilers or
industrial furnaces having a heat input capacity of at
least 10 million BTUs/hour or for use as a feedstock to
rerefiners.
Constituent/Property
Allowable Level*
| Arsenic |
18
ppm, maximum |
| Cadmium |
10 ppm.
maximum |
| Chromium |
35
ppm maximum |
| Lead |
1,000
ppm maximum |
| Polychlorinated
Biphenyls (PCBs) |
49
ppm maximum |
| Total
Halogens |
4,000
ppm maximum |
| Flash
Point |
100°
F minimum |
*Concentrations
are in parts per million on a dry weight basis. Values for
metals are for total metal concentration, not EP Toxic
concentration.
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Documents
Required for Waste Approval and Shipment
EMI requires that each new shipment of waste oil,
waste oil water mixture that is proposed for storage and/or treatment at the facility undergo an initial waste characterization prior to shipment.
The need for analytical testing (as opposed to generator’s “knowledge of the process”) may be waived at the discretion of EMI’s Facility Manager based on the generator’s knowledge of the waste and process generating the waste.
The frequency with which an initial analysis is repeated or reviewed (to ensure that it is accurate) is based upon either (1) a reason to believe that the process generating the waste has changed or (2) if the waste shipment does not match the waste description on the accompanying manifest.
EMI requires that the Generator or his/her
authorized representative complete and the sign a Waste Profile
Form (WPF). Upon approval of the WPF EMI will issue a
EMI Authorization number for the waste stream prior to
scheduling and acceptance of the waste at the EMI
facility.
Proper shipping papers must accompany all wastes received
at EMI. EMI accepts nonhazardous materials on a bill of
lading, nonhazardous waste manifest or hazardous waste
manifest (using appropriate nonhazardous designation or
waste code). All waste oil transported into EMI from
out-of-state must be accompanied by a manifest. EMI-approved transporters must
examine their shipping papers to determine accurate drum
counts, quantities, waste types, approval numbers, etc. to
detect any discrepancies that could be corrected prior to
arrival at EMI. Only shipments accompanied by
proper/complete shipping papers, WPF, and EMI approval
number are accepted at EMI.
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Acceptance,
Treatment
and Disposal of This Waste Stream
All waste oil transported into Maine must have been analyzed for the
parameters set forth in Chapter 860,
Sections 4B and 4C of this rule and must meet the standards for waste
oil. The results of this analysis must be recorded on the Uniform Hazardous Waste Manifest under Item J, "Additional Descriptions."
Upon arrival,
each container of waste oil
is screened/analyzed for the following parameters at the
EMI facility prior to acceptance:
- Flashpoint (except for
water and non-gasoline petroleum products)
- % Oil Product
- % Water Present
- % Solids Present
- Color
- Total Halogens (by Dexsil Chlor-D-TectÒ
Test Kit; EPA SW 846 Method 9077; ASTM Method D 5384-95
- PCBs (by Dexsil Chlor-N-OilÒ
50 Test Kit; EPA SW 846 Method 9079) More
Info
Waste oil/water
mixtures are off-loaded and stored in 15,000-gallon capacity aboveground, single-walled steel storage tanks (ASTs) located within a concrete containment dike area.
As necessary, chemical additives (e.g., de-emulsifiers and flocculates) are used to enhance the quality of oil in the tanks.
The water phase, which is decanted from the tanks, is then pumped to the water treatment system holding tanks. After settling, the water is pumped from the holding tanks to the water treatment system feed tank. Wastewater is treated using a combination of additional gravitational separation, chemical treatment, ultra filtration (via a membrane system), and carbon polishing. Ultimately, the treated wastewater is discharged to the local City of South Portland POTW under an Industrial User Wastewater Discharge Permit Number 005.
Wastewater (i.e., water with dissolved waste oil compounds, or no measurable layering of waste oil) may be unloaded directly into the water treatment system holding tanks, provided that the wastewater is suitable for treatment and discharge without phase separation in the waste oil storage tanks. After being pumped to the water treatment system feed tank, water meeting this classification proceeds immediately through a combination of chemical treatment, ultra filtration membrane separation, carbon polishing, and ultimate discharge to the City of South Portland POTW in accordance with the pre-treatment permit limits.
Specification waste oil that is recovered by the
EMI Facility is either offered for sale as a fuel supplement for use in non-industrial boilers and non-industrial furnaces as well as in industrial boilers and industrial furnaces, or shipped to a permitted waste oil facility for bulking.
Off-specification waste oil is offered for sale as a fuel supplement for use only in industrial boilers or industrial furnaces having a heat input
capacity of at least 10 million BTUs/hour or for use as a feedstock to re-refiners, or shipped to a permitted waste oil facility for
bulking.
Sludge generated from the settling of materials throughout the wastewater treatment process is dewatered in a recessed-plate filter press. From the filter press the dewatered sludge is placed in 30-yard roll-off containers prior to being transported off site and disposed of at a properly licensed facility.
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