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.

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