Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1995-04-27
1997-06-03
Jordan, Charles T.
Liquid purification or separation
Processes
Ion exchange or selective sorption
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.
Aubert Winton G.
Kriel Wayne A.
Chelliah Meena
Jordan Charles T.
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