Chinese Academy of Sciences

Ninebot (beijing) Tech Co., Ltd

Jun Tang

Peng Cheng

Lei Liu

Yang Yang

Beidou Xi

Juan Li

Xing Liu

Jinbo Shao

Shengqiao Zhang

Yiye Gu

Yujie Qian

Ziwei Chen

Yue Wang

Yang Wang

Lei Chen

Jing Su

Lufeng Gao

Haoran Liu

Tien-Li Su

Chuanjun Zhao

Ningqing Lv

Da An

Child seat

Electric scooter

Scooter head

Electric bicycle

Electromobile

Headlight for vehicles

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.

System and method for combined microorganism degradation and air sparging-soil vapor extraction of oil-containing sludge

A rating evaluation method for groundwater pollution source intensity, including: determining pollution source characteristic indices, and weights and scores thereof, according to the type, the discharge mode, the existence time, and the like of a groundwater pollution source; determining an vadose zone antifouling property index and an vadose zone vulnerability index and scores thereof according to vadose zone characteristics; determining a rating evaluation index system for groundwater pollution sources by combining the pollution source characteristic indices with the vadose zone antifouling property index and the vadose zone vulnerability index; and establishing a rating evaluation method for groundwater pollution source intensity and evaluating the groundwater pollution source intensity. The evaluation method comprehensively considers pollution source characteristics and vadose zone characteristics to accurately reflect source intensities of groundwater pollutants and protect groundwater, and may provide a scientific basis to allow for more scientific and rational protection and management of groundwater.

Rating evaluation method for groundwater pollution source intensity

Growing community of inventors

Beijing, China

Jun Tang