Biodegradation studies

Biodegradation studies of starch blends have not been conclusive where a nondegradable synthetic polymer has been the blend component probably biodisiategration would be a better term to describe these polymers. The principal deficiencies of products based on this chemistry, aside from the incomplete biodegradation, are water-sensitivity of manufactured articles, and the balance of this and biodegradation with the starch level ia the product. 

Most uses of chloroisocyanurates are regulated by the EPA under EIERA. Cyanuric acid (or cyanurate) is ultimately the end product of use of chloroisocyanurates in bleaching, sanitizing, and disinfection appHcations. Since the N-chloro derivatives are biocidal, biodegradation studies have centered on the residual CA. Biodegradation occurs (128). 

Tabak, et al., Biodegradability Studies with Organic Priority Pollutant Compounds," USEPA, MERL, Cincinnati, Ohio, April 1980. 

Tabak HH, Quave SA, Mashni Cl, et al. 1981. Biodegradability studies with organic priority pollutant compounds. J Water Pollut Control Fed 53 1503-1518. 

Next to 3-0-4 lignin substructure model compounds, 3-1 lignin substructure model compounds have been often used for lignin biodegradation studies. This type of compound was found to be degraded... 

Table IV> Descriptions of Three Soil Biodegradation Studies Involving Use of Herbicide Orange...

This report summarizes the biodegradability studies on polyethers and Introduces future prospects (1 ). 

Environmental Fate. Sensitized photolysis studies in water and oxidation/reduction studies in both air and water are lacking, as are biodegradation studies in surface and groundwaters. These kinds of studies are important, since they represent the fundamental removal mechanisms available to isophorone in the environment. In addition, the kinetic studies for the atmospheric reactions are important for understanding the significance of a removal mechanism and predicting the reactions that may control the fate of a chemical in the environment. 

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