Oxidative degradation Biodegradation

Acid-base, hydrolysis, hydration, neutralization, oxidation-reduction, polymerization, thermal degradation Adsorption-desorption, precipitation-dissolution, immiscible-phase separation, biodegradation, complexation Acid-base, neutralization, oxidation-reduction (most inorganic and some biologically mediated), adsorption-desorption, precipitation-dissolution, complexation Hydrolysis, oxidation-reduction (biodegradation of anthropogenic inorganics), immiscible-phase separation... 

Because they can be chemically oxidized or biologically degraded, chemical oxidation and biodegradation technologies (both in situ and ex situ) can be effective in the treatment of oxygenates. 

The three processes responsible for the transformation and degradation of disulfoton in water are abiotic hydrolysis, photosensitized oxidation, and biodegradation. Disulfoton is most stable towards... 

POLYDIMETHYLSILOXANE. A silicone polymer developed for use as a dielectric coolant and in solar energy installations, It also may have a number of other uses. It is stated to be highly resistant to oxidation and biodegradation by microorganisms. It is degradable when exposed to a soil environment by chemical reaction with clays and water, by which it is decomposed to silicic acid, carbon dioxide, and water. 

Niosomes In order to circumvent some of the limitations encountered with liposomes, such as their chemical instability, the cost and purity of the natural phospholipids, and oxidative degradation of the phospholipids, niosomes have been developed. Niosomes are nonionic surfactant vesicles which exhibit the same bilay-ered structures as liposomes. Their advantages over liposomes include improved chemical stability and low production costs. Moreover, niosomes are biocompatible, biodegradable, and nonimmunogenic [215], They were also shown to increase the ocular bioavailability of hydrophilic drugs significantly more than liposomes. This is due to the fact that the surfactants in the niosomes act as penetrations enhancers and remove the mucous layer from the ocular surface [209]. 

Oxidative degradation of bactericidal or non-biodegradable compounds and of a broad range of toxic contaminants accompanied by diminution of water toxicity... 

Hydroxyapatite and magnesium oxide improve biodegradation of polylactides. The degradation occurs in the bulk material whereas, in unfilled material, degradation occurs by surface erosion. 

Oxidative degradation appears to be the main mechanism governing humification. In determining the degree of decomposition or humification of peat materials the estimation of total fiber content correlates well with relative biodegradability and is a more reliable method than either the pyrophosphate index or bulk density values. 

Polyacrylamides do not undergo biodegradation but are vulnerable to a slow chemical (oxidative) degradation. In the experiments conducted, no appreciable viscosity loss was observed over a period of several months (see Table 4). 

---