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2 Oxidation of phenol
Phenol is abundant in various types of wastewater, and is one of the 114 priority pollutants initially announced by the US EPA
.
There are many reports on the supercritical water oxidation of phenol
There are more reports in the literature about the disappearance kinetics of phenol
.
However, the purpose of applying supercritical water oxidation technology is not simply to convert one organic matter into a large number of other small molecular organic products, but to convert all organic matter into carbon dioxide and water
Table 2-4 Treatment effect of phenol in supercritical water chlorination process under different conditions
In order to clarify the supercritical water oxidation mechanism of phenol, Thoronton et al.
conducted a supercritical water oxidation test of phenol at a lower temperature and found that after a short time of reaction, most of the phenol was converted into high molecular weight products, which were identified by GC/MS analysis 2-phenoxyphenol, 4-phenoxyphenol, 2,2-biphenol, dibenzo-P-dioxin and other products
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3 Treatment of sulfur-containing wastewater
Petroleum refining, petrochemical, coking, dyeing, printing and dyeing, tanning, papermaking and other factories all produce sulfur-containing wastewater, causing serious pollution to the environment
.
Different sources of sulfur-containing wastewater require different treatment methods.
Domestic researchers use supercritical water oxidation to treat sulfur-containing wastewater.
