Hauv kev kho ntub dej, cov ntsev pov tseg yog yaj hauv dej ua ntej, thiab cov kuab tshuaj organic yog degraded los ntawm kev sib sib zog nqus oxidation technology hauv kev kho dej, thiaj li ua kom tsis muaj teeb meem pov tseg ntsev.
Raws li txoj kev sib txawv thiab cov xwm txheej ntawm kev tsim cov dawb radicals, nws tuaj yeem muab faib ua cov txheej txheem ntub dej oxidation, supercritical dej oxidation txoj kev thiab lwm txoj kev catalytic oxidation.
Kev ntub dej oxidation yog hais txog kev siv huab cua los yog oxygen li oxidant nyob rau hauv qhov kub thiab txias siab kom oxidize organic teeb meem hauv dej rau hauv me me molecular organic teeb meem los yog inorganic teeb meem.
Qhov kub ntawm ntub oxidation feem ntau yog {{{0}}} degree, thiab lub siab yog 0.5-20mpa. Yog tias qhov ntsuas kub thiab siab ntawm cov tshuaj tiv thaiv tau nce siab tshaj qhov tseem ceeb ntawm cov dej (kub 374.3 degree, siab 22.05MPa), qhov kev ua tau zoo ntawm cov dej yuav hloov tau zoo heev, uas qhia cov khoom zoo ib yam li cov tsis muaj polar organic compounds. Nyob rau hauv cov xwm txheej no, cov tshuaj tiv thaiv hu ua supercritical dej oxidation.
Supercritical dej tuaj yeem ua tsis tiav nrog cov khoom tsis yog polar thiab lwm yam organic teeb meem, thiab nws tseem tuaj yeem ua tsis tiav nrog huab cua, carbon dioxide thiab lwm yam gases. Txawm li cas los xij, ionization tas li thiab solubility ntawm cov khoom tsis muaj zog, tshwj xeeb tshaj yog cov ntsev, muaj tsawg heev hauv dej supercritical, thiab cov ntsev feem ntau tuaj yeem sib cais thiab yuav luag tsis muaj kev cuam tshuam rau oxidation cov tshuaj tiv thaiv.
Cov txheej txheem ntub dej tuaj yeem oxidize thiab degrade txhua yam ntawm cov pa phem yam tsis muaj kev xaiv. Tsis koom nrog incineration thiab lwm yam txheej txheem thermal, kev nyab xeeb siab.