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Combined treatment method of petroleum-contaminated soil
A combined remediation method of petroleum-contaminated soil includes: impurity removal pretreatment, photocatalytic pre-oxidation, stepwise thermal desorption of petroleum from soil, and high-temperature oxidation; with iron-titanium composite metal oxide (ITCMO) as a catalyst, conducting oxidation pretreatment under light conditions so that some cross-linked structures in macromolecular petroleum contaminants are broken and degraded; and conducting stepwise pyrolysis to achieve a removal rate of more than 98.00%. The new method adopts a combined remediation technology of photocatalytic pre-oxidation-stepwise pyrolysis, which realizes a relatively-high removal rate of petroleum hydrocarbons and the efficient and harmless remediation of high-concentration petroleum-contaminated soil, and remedied soil can be reused.
CHINA UNIVERSITY OF PETROLEUM
B B B B B C B B B
B01J B01J B09C B09C B01J C01G B01J B09C B01J
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Yu Bo Gang Sa Changlong Hongbo Dong Wei Fushan Shuhai Xiujie Mengfei Dehui Nan Xiaoning
Qiu Wu Li Wang Yin Dai Liu Zhu Wen Guo Yang Li Kong Shi Feng