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]