Vacuum still bottoms from maleic anhydride production.

Fractionating residues, benzene and chlorobenzene recovery.

Residues from distillation of 1-chloro-4-nitrobenzene.

Methanol recovery bottoms, heavy ends, methyl methacrylate production.

Ends, distillation from carbaryl production.

Ethylene dichloride distillation ends in vinyl chloride production.

Quench column bottoms, acrylonitrile production.

Aniline production still bottoms.

Cyanide-bearing wastes from steel finishing.

Source: Reprinted, with permission, from Zimpro Environmental, Inc., 1993, wet air oxidation—solving today's hazardous wastewater problems. Bulletin WAO-100.



FIG. 11.14.9 SCWO Schematic. (Reprinted from U.S. EPA, 1992).


FIG. 11.14.9 SCWO Schematic. (Reprinted from U.S. EPA, 1992).

This technology is not recommended for aromatic halo-genated organics, inorganics, or for large volumes of waste. It is not appropriate for solids or viscous liquids.

Status. Available at commercial scale.

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