Closed end regeneration method

Details Closed end regeneration method Closed end regeneration method

2006-06-27

2006-06-27

Kim, John (Department: 1723)

Liquid purification or separation

Processes

Ion exchange or selective sorption

C210S677000, C210S679000

Reexamination Certificate

active

07067062

ABSTRACT:
A nanoporous reactive adsorbent incorporates a relatively small number of relatively larger reactant, e.g. metal, enzyme, etc. particles (10) forming a discontinuous or continuous phase interspersed among and surrounded by a continuous phase of smaller adsorbent particles (12) and connected interstitial pores (14) therebetween. The reactive adsorbent can effectively remove inorganic or organic impurities in a liquid by causing the liquid to flow through the adsorbent. For example, silver ions may be adsorbed by the adsorbent particles (12) and reduced to metallic silver by reducing metal, such as irons, as the reactant particles (10). The column can be regenerated by backwashing with the liquid effluent containing, for example, acetic acid.

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