Traditional technology of wet oxidation was often carried out under the situation of high temperature and pressure

which results in low efficiency of the reaction

serious wear of the reactor and harsh reaction conditions. And the degradation rate and efficiency was often under at a lower level. The objective of this study was to elucidate the mechanism degrading wastewater by using MW-CWPO

in which the production of hydroxyl radicals can be promoted

and hence improves the degradation of pollutants under relatively gentle conditions. In this research

p-nitro phenol (100 mg/L) was used as target pollutant

and carbon nanotubes and hydrogen peroxides were used as catalysts and auxiliary oxidant. It is investigated that the high power

high pressure

and high concentration of catalyst and oxidant can effectively improve the degradation efficiency of organic wastewater. Besides

it was found that MW radiation can promote hot spot (exceed 1000℃) formation on the surface of catalysts

which can enhance hydroxyl generation by the decomposition of oxidizers and dissolved oxygen at the condition of high temperature. Additionally

the catalysts after reaction were scanned by electron microscope and find that the surface of the carbon nanotube used in the experiment had no apparent modification

so that it can be reused for a long time. Since factors such as pressure can enhance the degradation rate of organic wastewater

they can be controllably modified to accelerate chemical reactions or improve degradation rate of actual chemical industry wastewater.