Extraction and disposal of organic wastes with polymer coated po

Liquid purification or separation – Processes – Ion exchange or selective sorption

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B01D 1504, C02F 128

Patent

active

H00016519

ABSTRACT:
Volatile organic compounds, including, in particular, the BTEX group, present in wastewater and groundwater in concentrations of about 1.0 PPM to 100 PPM, may be removed by adsorption onto a polymer coated porous substrate. The substrate is preferably selected from a group consisting of mullite, diatomaceous earth and ground structural brick and fire brick. The polymer coatings may be applied by immersing the substrate in a solution of the polymer or the polymer coating may be generated on the substrate by polymerization of a substrate coated resin. Polystyrene, polypropylene glycol, polymethyl silicone, polyesters and polyurethanes may be used as the coating material. The adsorbent composition may be disposed in a packed column, as a liner for storage pits, as a barrier for surface bodies of water and groundwater flow, and may be regenerated or disposed of by deep well injection.

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Industrial Wastewater, Mar./Apr. 1995; "Granular Activated Carbon vs. Macroreticular Resins" by Jack L. Musterman and Victor J. Boero Dow Chemical Technical Bulletin 3.03 Polymeric Adsorbent XUS 43493.

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