Absorption of Organic Contaminants

To eliminate contaminants of soil or waters with organic compounds which occasionally or constantly enter the environment, such as oils, 

It order to get a COC with a loose, wadding-like consistency, a solution of a COC in toluene is poured into the precipitating agent acetone in a ratio of about 1 10 at room temperature and the mixture is stirred at high speed for about 5 minutes (68). 

Experiments with various grades of COCs have been performed. The results are shown in Table 2.6. The results indicate that the capability of absorption decreases with glass transition temperature Tg- 

An ecological advantage is that the COC is unproblematic with respect to dumping and also combustion. Furthermore, reuse of the absorbent is possible, for example by simple extraction of the contaminants and subsequent drying (68). 

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