Current through Register Vol. 50, No. 9, September 20, 2024
A. Commercial
facilities and transfer stations may be permitted to conduct one or more of the
following acceptable commercial E and P Waste treatment and disposal options.
1. Class II Injection Well. Produced salt
water is required to be disposed by injection into a Class II well pursuant to
the requirements of Chapter 4 of LAC 43:XIX. Other E and P Waste fluids may be
injected into a Class II well upon approval of the Office of Conservation.
Class II wells may be operated in conjunction with other treatment and disposal
options. The requirements for permitting a Class II well are found in Chapter 4
of these regulations (LAC 43:XIX.401 et seq.).
2. Class II Well Slurry Fracture Injection.
The process of mixing E and P Waste solids with fluids for subsurface
injection. The solids/fluids mixture (slurry) is then pumped at or above
fracture gradients into a suitably characterized subsurface reservoir. A series
of fractures are created forming a sphere around the perforated interval. These
fractures grow at different orientations around the wellbore and constitute the
disposal domain. Slurry fracture injection can only be approved when
appropriate regulations are adopted/promulgated.
3. Land Treatment. A dynamic process
involving the controlled application of E and P Waste onto or into the aerobic
surface soil horizon by a commercial facility, accompanied by continued
monitoring and management, to alter the physical, chemical, and biological
state of the E and P Waste. Site, soil, climate, and biological activity
interact as a system to degrade and immobilize E and P Waste constituents
thereby rendering the area suitable for the support of vegetative growth and
providing for beneficial future land use or to meet the reuse criteria of
§565 The requirements for permitting a
land treatment system are found in
§519. C and
§523
4. Phase Separation. The
process of treating or pretreating oil and gas E and P Waste by physical and/or
chemical methods which separate the fluid (water), solid, and oily fractions.
Such process can be accomplished by any number of methods, including, but not
limited to the use of a centrifuge, belt-press, flocculation, or other methods.
The fractions are then further treated or disposed by other acceptable methods.
Fluids generally are required to be disposed of into a Class II disposal well.
Solids may be further treated or disposed of by one of the options listed
herewith. Oil may be sent to a salvage oil reclaimer or sold to a refiner. The
equipment and processes utilized in phase separation of E and P Waste must be
described in detail in the permit application.
5. Thermal Desorption. The process of heating
E and P Waste in an enclosed chamber under either oxidizing or non-oxidizing
atmospheres at sufficient temperature and residence time to vaporize organic
contaminants from contaminated surfaces and surface pores and to remove the
contaminants from the heating chamber in a gaseous exhaust system. The
equipment and processes utilized in thermal desorption of E and P Waste must be
described in detail in the permit application. The criteria for treatment of E
and P Waste by thermal desorption will be set on a case-by-case
basis.
6. Cavern Disposal. The
utilization of a solution-mined salt cavern for the disposal of E and P waste
fluids and solids. Applicants for permits and operators of commercial E and P
waste salt cavern disposal wells must comply with the requirements of this
Chapter (LAC 43:XIX.501 et seq.) and the applicable requirements of Statewide
Order No. 29-M-2, LAC 43:XVII, 3101 et seq. (see §555).
7. Incineration. The burning of organic E and
P Waste materials. This treatment/disposal technique is used to destroy organic
compounds with the reduction of the material to its mineral constituents. The
equipment and processes utilized to incinerate E and P Waste must be described
in detail in the permit application. The criteria for treatment of E and P
Waste by incineration will be set on a case-by-case basis.
8. Solidification (Chemical Fixation). The
addition of agents to convert liquid or semi-liquid E and P Waste to a solid
before burial to reduce leaching of E and P Waste material and the possible
migration of the E and P Waste or its constituents from the facility. The
equipment and processes utilized to solidify E and P Waste must be described in
detail in the permit application. The criteria for treatment of E and P Waste
by solidification will be set on a case-by-case basis.
9. Stabilization (Chemical Fixation). An E
and P Waste treatment process that decreases the mobility or solubility of E
and P Waste constituents by means other than solidification. Examples of
stabilization techniques include chemical precipitation or pH alteration to
limit solubility and mixing of E and P Waste with sorbents such as fly ash to
remove free liquids. The equipment and processes utilized to stabilize E and P
Waste must be described in detail in the permit application. The criteria for
treatment of E and P Waste by stabilization will be set on a case-by-case
basis.
B. The Office of
Conservation will consider new and innovative treatment and/or disposal options
on a case-by-case basis. The equipment and processes utilized by technologies
other than those listed above to treat or dispose of E and P Waste must be
described in detail in the permit application. The criteria for treatment of E
and P Waste by other technologies will be set on a case-by-case
basis.
C. Produced water (Waste
Type 01-saltwater) is subject to the disposal restrictions of
§503 C
D. Waste Types 02, 03, 04, 05, 06, 07, 08,
09, 10, 11, 14, 15, 16, and 99 (and associated washwater) may be treated and
disposed by land treatment methods in accordance with the buffer (location)
requirements of
§507. A 3
E. Waste Type 12 and wash water (Waste Type
10) generated in the cleaning of vessels containing Waste Type 12 may not be
land treated unless the MPC requirements of
§503. F and G and
§549. C.7.a are
met.
F. All E and P Waste types may
be treated or disposed by Class II slurry fracture injection, phase separation,
thermal desorption, cavern disposal, incineration, solidification or
stabilization methods.
AUTHORITY NOTE:
Promulgated in accordance with
R.S.
30:4 et
seq.
