Abstract：
In order to solve the problem of petroleum hydrocarbon soil pollution in oilfield development, the feasibility of using
magnesium oxide as a remediation agent formula component, and its compatibility with fly ash and calcium oxide for petroleum
hydrocarbon pollution remediation, was studied.. According to analysis, it is believed that magnesium oxide powder has a large
specific surface area and rich pore structure. Coal fly ash provides a large number of active sites such as Al and Si. The alkaline
effect of magnesium oxide and calcium oxide will synergistically adsorb petroleum hydrocarbons and form a stable mixture. The
process is irreversible, so it achieves the purpose of remediation of petroleum contaminated soil. In order to verify the above
mechanism, using crude oil from Fuyu and Honggang Oil Production Plants in Jilin Oilfield as pollutants, by adjusting the ratio
of three components, the experimental study of the remediation effect of the remediation agent on petroleum contaminated soil
shows that: the best ratio for Fuyu oil is calcium oxide: magnesium oxide: fly ash is 4:5:3. The best mixed mass ratio for Hong
gang crude oil is calcium oxide: magnesium oxide: fly ash 3:3:2, and the repair efficiency is 85
%
.. Through mechanism research
and verification experiments, it is believed that the inorganic soil remediation agent in this study has a good removal effect on
petroleum hydrocarbon pollutants, and the remediation agent is low in cost and environmentally friendly, and is a promising
petroleum hydrocarbon contaminated soil remediation technology
