40 CFR Appendix VI to Part 268 - Recommended Technologies To Achieve Deactivation of Characteristics in Section 268.42

Appendix VI to Part 268 - Recommended Technologies To Achieve Deactivation of Characteristics in Section 268.42

The treatment standard for many characteristic wastes is stated in the § 268.40 Table of Treatment Standards as “Deactivation and meet UTS.” EPA has determined that many technologies, when used alone or in combination, can achieve the deactivation portion of the treatment standard. Characteristic wastes that are not managed in a facility regulated by the Clean Water Act (CWA) or in a CWA-equivalent facility, and that also contain underlying hazardous constituents (see § 268.2(i)) must be treated not only by a “deactivating” technology to remove the characteristic, but also to achieve the universal treatment standards (UTS) for underlying hazardous constituents. The following appendix presents a partial list of technologies, utilizing the five letter technology codes established in 40 CFR 268.42 Table 1, that may be useful in meeting the treatment standard. Use of these specific technologies is not mandatory and does not preclude direct reuse, recovery, and/or the use of other pretreatment technologies, provided deactivation is achieved and underlying hazardous constituents are treated to achieve the UTS.

Waste code/subcategory Nonwastewaters Wastewaters
D001 Ignitable Liquids based on 261.21(a)(1) - Low TOC Nonwastewater Subcategory (containing 1% to <10% TOC) RORGS
INCIN
WETOX
CHOXD
BIODG
n.a.
D001 Ignitable Liquids based on 261.21(a)(1) - Ignitable Wastewater Subcategory (containing <1% TOC) n.a. RORGS
INCIN
WETOX
CHOXD
BIODG
D001 Compressed Gases based on 261.21(A)(3) RCGAS
INCIN
FSUBS
ADGAS fb. INCIN
ADGAS fb. (CHOXD; or CHRED)
n.a.
D001 Ignitable Reactives based on 261.21(a)(2) WTRRX
CHOXD
CHRED
STABL
INCIN
n.a.
D001 Ignitable Oxidizers based on 261.21(a)(4) CHRED
INCIN
CHRED
INCIN
D002 Acid Subcategory based on 261.22(a)(1) with pH less than or equal to 2 RCORR
NEUTR
INCIN
NEUTR
INCIN
D002 Alkaline Subcategory based on 261.22(a)(1) with pH greater than or equal to 12.5 NEUTR
INCIN
NEUTR
INCIN
D002 Other Corrosives based on 261.22(a)(2) CHOXD
CHRED
INCIN
STABL
CHOXD
CHRED
INCIN
D003 Water Reactives based on 261.23(a) (2), (3), and (4) INCIN
WTRRX
CHOXD
CHRED
n.a.
D003 Reactive Sulfides based on 261.23(a)(5) CHOXD
CHRED
INCIN
STABL
CHOXD
CHRED
BIODG
INCIN
D003 Explosives based on 261.23(a) (6), (7), and (8) INCIN
CHOXD
CHRED
INCIN
CHOXD
CHRED
BIODG
CARBN
D003 Other Reactives based on 261.23(a)(1) INCIN
CHOXD
CHRED
INCIN
CHOXD
CHRED
BIODG
CARBN
K044 Wastewater treatment sludges from the manufacturing and processing of explosives CHOXD
CHRED
INCIN
CHOXD
CHRED
BIODG
CARBN
INCIN
K045 Spent carbon from the treatment of wastewaters containing explosives CHOXD
CHRED
INCIN
CHOXD
CHRED
BIODG
CARBN
INCIN
K047 Pink/red water from TNT operations CHOXD
CHRED
INCIN
CHOXD
CHRED
BIODG
CARBN
INCIN

Note: “n.a.” stands for “not applicable”; “fb.” stands for “followed by”.

[55 FR 22714, June 1, 1990, as amended at 62 FR 26025, May 12, 1997]