Leaching Treatment Method of Petroleum Hydrocarbon Pollution in Farming Land for Ecological Protection in China

Abstract

Ectopic elution is a commonly used method for remediation of petroleum hydrocarbon contaminated soil. In the work, surfactant was used to wash petroleum hydrocarbon contaminated soil. Then, we investigated the effects of different surfactant combination ratio and concentration, the auxiliary concentration and temperature on the removal efficiency of petroleum hydrocarbon pollutants. The results showed that the oil solubilization capacity of Tw-80 was higher than that of SDS (Sodium dodecyl sulphate, SDS), and the removal rate of oil was the highest when the compound ratio of SDS/Tw-80 was 50-60. With the increase of surfactant concentration and temperature, the oil removal rate increased. The increase of alkaline solution was in favour of heavy oil separation and removal of tricyclic aromatic compounds. Sodium chloride, calcium chloride and magnesium chloride reduced the removal rate of oil, while sodium sulfate, sodium bicarbonate, sodium bicarbonate, sodium silicate and sodium phosphate increased the removal rate of oil.

Mechanochemical dechlorination of petrochemical sludge through a planetary ball mill and using industrial wastes as additives

“…Degradation of persistent organic pollutants (POPs) in industrial waste is a major concern for health and the environment. 1,2 Heavy industries such as petrochemicals and steel factories generate a wide range of hazardous pollutants [3][4][5] such as polychlorinated compounds (PC), polyaromatic hydrocarbons (PAHs), polyvinyl chloride (PVC) and other chlorinated polymers. [5][6][7] POPs compounds are toxic, mutagenic, carcinogen, and migrate long distances in the environment.…”

“…1,2 Heavy industries such as petrochemicals and steel factories generate a wide range of hazardous pollutants [3][4][5] such as polychlorinated compounds (PC), polyaromatic hydrocarbons (PAHs), polyvinyl chloride (PVC) and other chlorinated polymers. [5][6][7] POPs compounds are toxic, mutagenic, carcinogen, and migrate long distances in the environment. Furthermore, most of compounds are recognized as bioaccumulation compounds and their presence in the environment is dangerous to human health.…”