公开(公告)号：US20190248687A1

公开(公告)日：2019-08-15

申请号：US16046214

申请日：2018-07-26

Applicant: Chinese Research Academy of Environmental Sciences

Inventor： Juan Li ,  Beidou Xi ,  Chuanjun Zhao ,  Yang Wang ,  Jun Tang ,  Jing Su ,  Lei Chen ,  Yang Yang

IPC: C02F3/12 ,  C02F1/20 ,  C02F3/22 ,  B09C1/10

CPC classification number: C02F3/1284 ,  B09C1/10 ,  C02F1/20 ,  C02F3/22 ,  C02F2101/322 ,  C02F2203/006

Abstract: A system and method for combined microorganism degradation and air sparging-soil vapor extraction (AS-AVE) of oil-containing sludge can include a microorganism-adding unit, an AS-SVE unit, a metering-feeding layer, a mixing layer, a material discharging layer and a crawler-type conveyor. In some embodiments the microorganism-adding unit and the AS-SVE unit can include a microorganism storage tank and an AS-SVE storage tank. In some embodiments, the metering-feeding layer can include a valve, a pressure gauge, a flowmeter, a feeding chamber. In some embodiments, the mixing layer can include pipeline connectors and a stirrer. In some embodiments, the material discharging layer is mainly for transporting the treated soil away. The system can remove petroleum, petroleum hydrocarbons, volatile organic compounds (VOCs), and degradable and extractable contaminants from oil-containing sludge by a method combining microorganism degradation, mechanical stirring, AS-AVE and the like, thereby achieving soil remediation and automatic treatment in a large scale.