Method and device for combined remediation of petroleum hydrocarbon-contaminated soil by cyclodextrin and sodium persulfate

• Main Authors: XI PUYU, CHEN JINGWEN, HUANG YI, ZHENG YONGQUAN, QIAO XIANLIANG, CAI XIYUN, HU CANYANG, ZHAO XIAOXUE
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2019
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention provides a method and a device for combined remediation of petroleum hydrocarbon-contaminated soil by cyclodextrin and sodium persulfate, and belongs to the technical field of soil contamination remediation. According to the method, cyclodextrin is adopted for increasing the effective concentration of petroleum hydrocarbons in aged soil, so that the petroleum hydrocarbons are more liable to be oxidized and degraded by sodium persulfate. Under experimental conditions, the removal rate of petroleum contaminants in the soil can reach 27.5-81.2%. The invention establishes a technology and the device for combined remediation of of the petroleum hydrocarbon-contaminated soil by cyclodextrin and sodium persulfate; by adopting the technology, the degradation rate for the sodium persulfate to remedy the petroleum-contaminated soil is increased, especially that the effect on the aged soil is more significant, and used chemicals are environmentally-friendly and recyclable; therefore, the technology has goo