Sapana S. Madan, K. Wasewar
2017
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Abstract
Phenylacetic acid is a carboxylic acid found in the active auxin. Phenylacetic acid is extensively used in the biotechnological and pharmaceutical industry for the production of β-lactam, antibiotics, penicillin G etc. Phenylacetic acid has wide range of biological activity, antibacterial, analgesic, and virucidal properties. Because of versatile biological and medicinal activities of the phenylacetic acid, it is necessary to recover it from the aqueous streams. Separation of phenylacetic acid from aqueous streams is an essential fraction of their manufacturing process which directly affects the economy of the process. Number of separation methods such as ion-exchange, adsorption, reverse osmosis, electro-dialysis, distillation, precipitation, ultrafiltration, extraction etc. Most of these methods have their certain drawback. Among all these methods, adsorption method is preferable including biological, physical, and chemical, natural systems due its low cost, high treatment stability, easy operation and compact facility. Further the exhaustive comparisons of these methods have been discussed.